diff --git a/Makefile.local b/Makefile.local
index 81c20fa7..8501fee3 100644
--- a/Makefile.local
+++ b/Makefile.local
@@ -1,41 +1,43 @@
 TEST_DIRS := ./swh/web/tests
 
 .PHONY: build-webpack-dev
 build-webpack-dev:
 	npm run build-dev
 
 .PHONY: build-webpack-dev-no-verbose
 build-webpack-dev-no-verbose:
 	npm run build-dev >/dev/null
 
 .PHONY: build-webpack-prod
 build-webpack-prod:
 	npm run build
 
 .PHONY: run-migrations
 run-migrations:
 	python3 swh/web/manage.py migrate 2>/dev/null
+	python3 swh/web/manage.py createcachetable 2>/dev/null
 
 .PHONY: run-migrations-prod
 run-migrations-prod:
 	django-admin migrate --settings=swh.web.settings.production 2>/dev/null
+	django-admin createcachetable --settings=swh.web.settings.production 2>/dev/null
 
 run-django-webpack-devserver: run-migrations
 	bash -c "trap 'trap - SIGINT SIGTERM ERR; kill %1' SIGINT SIGTERM ERR; npm run start-dev & cd swh/web && python3 manage.py runserver --nostatic"
 
 run-django-webpack-dev: build-webpack-dev run-migrations
 	python3 swh/web/manage.py runserver --nostatic
 
 run-django-webpack-prod: build-webpack-prod run-migrations-prod
 	python3 swh/web/manage.py runserver --nostatic --settings=swh.web.settings.production
 
 run-django-server-dev: run-migrations
 	python3 swh/web/manage.py runserver --nostatic
 
 run-django-server-prod: run-migrations-prod
 	python3 swh/web/manage.py runserver --nostatic --settings=swh.web.settings.production
 
 run-gunicorn-server: run-migrations
 	gunicorn3 -b 127.0.0.1:5004 swh.web.wsgi
 
 
diff --git a/debian/control b/debian/control
index bd7fc3ac..3a065eb2 100644
--- a/debian/control
+++ b/debian/control
@@ -1,48 +1,48 @@
 Source: swh-web
 Maintainer: Software Heritage developers <swh-devel@inria.fr>
 Section: python
 Priority: optional
 Build-Depends: curl,
                debhelper (>= 9),
                dh-python (>= 2),
                python3-all,
                python3-bs4,
                python3-django (>= 1.10.7~),
                python3-djangorestframework (>= 3.4.0~),
                python3-django-webpack-loader,
                python3-django-js-reverse,
                python3-docutils,
                python3-htmlmin,
                python3-hypothesis (>= 3.11.0~),
                python3-magic (>= 0.3.0~),
                python3-lxml,
                python3-pytest,
                python3-pytest-django,
                python3-pygments,
                python3-pypandoc,
                python3-requests,
                python3-setuptools,
                python3-sphinx,
                python3-sphinxcontrib.httpdomain,
                python3-yaml,
                python3-swh.core (>= 0.0.40~),
                python3-swh.model (>= 0.0.25~),
-               python3-swh.storage (>= 0.0.121~),
+               python3-swh.storage (>= 0.0.124~),
                python3-swh.indexer (>= 0.0.120~),
                python3-swh.vault (>= 0.0.20~),
                python3-swh.scheduler (>= 0.0.31~),
                python3-swh.loader.git (>= 0.0.47~)
 Standards-Version: 3.9.6
 Homepage: https://forge.softwareheritage.org/diffusion/DWUI/
 
 Package: python3-swh.web
 Architecture: all
 Depends: python3-swh.core (>= 0.0.40~),
          python3-swh.model (>= 0.0.25~),
-         python3-swh.storage (>= 0.0.121~),
+         python3-swh.storage (>= 0.0.124~),
          python3-swh.indexer.storage (>= 0.0.120~),
          python3-swh.vault (>= 0.0.20~),
          python3-swh.scheduler (>= 0.0.31~),
          ${misc:Depends},
          ${python3:Depends}
 Description: Software Heritage Web Applications
diff --git a/debian/postinst b/debian/postinst
index aa14081e..b8f8a547 100755
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,3 +1,5 @@
 #!/bin/bash
 
 django-admin migrate --settings=swh.web.settings.production
+django-admin createcachetable --settings=swh.web.settings.production
+
diff --git a/requirements-swh.txt b/requirements-swh.txt
index 849a14a1..e497fbc0 100644
--- a/requirements-swh.txt
+++ b/requirements-swh.txt
@@ -1,6 +1,6 @@
 swh.core >= 0.0.40
 swh.model >= 0.0.25
-swh.storage >= 0.0.121
+swh.storage >= 0.0.124
 swh.vault >= 0.0.20
 swh.indexer >= 0.0.120
 swh.scheduler >= 0.0.31
\ No newline at end of file
diff --git a/swh/web/assets/src/bundles/webapp/webapp.css b/swh/web/assets/src/bundles/webapp/webapp.css
index aa3b654d..dfe18e56 100644
--- a/swh/web/assets/src/bundles/webapp/webapp.css
+++ b/swh/web/assets/src/bundles/webapp/webapp.css
@@ -1,471 +1,476 @@
 /**
  * Copyright (C) 2018  The Software Heritage developers
  * See the AUTHORS file at the top-level directory of this distribution
  * License: GNU Affero General Public License version 3, or any later version
  * See top-level LICENSE file for more information
  */
 
 html {
     height: 100%;
     overflow-x: hidden;
 }
 
 body {
     min-height: 100%;
     margin: 0;
     position: relative;
     padding-bottom: 120px;
 }
 
 a {
     border-bottom-style: none;
     outline: none;
 }
 
 code {
     background-color: #f9f2f4;
 }
 
 pre code {
     background-color: transparent;
 }
 
 footer {
     background-color: #262626;
     color: #fff;
     font-size: 0.8rem;
     position: absolute;
     bottom: 0;
     width: 100%;
     padding-top: 20px;
     padding-bottom: 20px;
 }
 
 footer a,
 footer a:visited {
     color: #fecd1b;
 }
 
 footer a:hover {
     text-decoration: underline;
 }
 
 .link-color {
     color: #fecd1b;
 }
 
 pre {
     background-color: #f5f5f5;
     border: 1px solid #ccc;
     border-radius: 4px;
     padding: 9.5px;
     font-size: 0.8rem;
 }
 
 .btn.active {
     background-color: #e7e7e7;
 }
 
 .card {
     margin-bottom: 5px !important;
     overflow-x: auto;
 }
 
 .navbar-brand {
     padding: 5px;
     margin-right: 0;
 }
 
 .table {
     margin-bottom: 0;
 }
 
 .swh-table thead {
     background-color: #f2f4f5;
     border-top: 1px solid rgba(0, 0, 0, 0.2);
     font-weight: normal;
 }
 
 .swh-table-striped th {
     border-top: none;
 }
 
 .swh-table-striped tbody tr:nth-child(even) {
     background-color: #f2f4f5;
 }
 
 .swh-table-striped tbody tr:nth-child(odd) {
     background-color: #fff;
 }
 
 .swh-web-app-link a {
     text-decoration: none;
     outline: none;
     border: none;
 }
 
 .swh-web-app-link:hover {
     background-color: #efeff2;
 }
 
 .table > thead > tr > th {
     border-top: none;
     border-bottom: 1px solid #e20026;
 }
 
 .table > tbody > tr > td {
     border-style: none;
 }
 
 .sitename .first-word,
 .sitename .second-word {
     color: rgba(0, 0, 0, 0.75);
     font-weight: normal;
     font-size: 1.2rem;
 }
 
 .sitename .first-word {
     font-family: 'Alegreya Sans', sans-serif;
 }
 
 .sitename .second-word {
     font-family: 'Alegreya', serif;
 }
 
 .swh-counter {
     font-size: 150%;
 }
 
 .swh-http-error {
     margin: 0 auto;
     text-align: center;
 }
 
 .swh-http-error-head {
     color: #2d353c;
     font-size: 30px;
 }
 
 .swh-http-error-code {
     bottom: 60%;
     color: #2d353c;
     font-size: 96px;
     line-height: 80px;
     margin-bottom: 10px !important;
 }
 
 .swh-http-error-desc {
     font-size: 12px;
     color: #647788;
     text-align: center;
 }
 
 .swh-http-error-desc pre {
     display: inline-block;
     text-align: left;
     max-width: 800px;
     white-space: pre-wrap;
 }
 
 .popover {
     max-width: 100%;
     z-index: 2000;
 }
 
 .modal {
     text-align: center;
     padding: 0 !important;
 }
 
 .modal::before {
     content: '';
     display: inline-block;
     height: 100%;
     vertical-align: middle;
     margin-right: -4px;
 }
 
 .modal-dialog {
     display: inline-block;
     text-align: left;
     vertical-align: middle;
 }
 
 .dropdown-submenu {
     position: relative;
 }
 
 .dropdown-submenu .dropdown-menu {
     top: 0;
     left: -100%;
     margin-top: -5px;
     margin-left: -2px;
 }
 
 .dropdown-item:hover,
 .dropdown-item:focus {
     background-color: rgba(0, 0, 0, 0.1);
 }
 
 a.dropdown-left::before {
     content: "\f0d9";
     font-family: 'FontAwesome';
     display: block;
     width: 20px;
     height: 20px;
     float: left;
     margin-left: 0;
 }
 
 #swh-navbar {
     border-top-style: none;
     border-left-style: none;
     border-right-style: none;
     border-bottom-style: solid;
     border-bottom-width: 5px;
     border-image: linear-gradient(to right, rgb(226, 0, 38) 0%, rgb(254, 205, 27) 100%) 1 1 1 1;
     width: 100%;
     padding: 5px;
     margin-bottom: 10px;
     margin-top: 30px;
     justify-content: normal;
     flex-wrap: nowrap;
     height: 72px;
     overflow: hidden;
 }
 
 #back-to-top {
     display: initial;
     position: fixed;
     bottom: 30px;
     right: 30px;
     z-index: 10;
 }
 
 #back-to-top a img {
     display: block;
     width: 32px;
     height: 32px;
     background-size: 32px 32px;
     text-indent: -999px;
     overflow: hidden;
 }
 
 .swh-top-bar {
     direction: ltr;
     height: 30px;
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     z-index: 99999;
     background-color: #262626;
     color: #fff;
     text-align: center;
     font-size: 14px;
 }
 
 .swh-top-bar ul {
     margin-top: 4px;
     padding-left: 0;
     white-space: nowrap;
 }
 
 .swh-top-bar li {
     display: inline-block;
     margin-left: 10px;
     margin-right: 10px;
 }
 
 .swh-top-bar a,
 .swh-top-bar a:visited {
     color: white;
 }
 
 .swh-top-bar a.swh-current-site,
 .swh-top-bar a.swh-current-site:visited {
     color: #fecd1b;
 }
 
 .swh-position-right {
     position: absolute;
     right: 0;
 }
 
 .swh-donate-link {
     border: 1px solid #fecd1b;
     background-color: #e20026;
     color: white !important;
     padding: 3px;
     border-radius: 3px;
 }
 
 .swh-navbar-content h4 {
     padding-top: 7px;
 }
 
 .swh-navbar-content .bread-crumbs {
     display: block;
     margin-left: -40px;
 }
 
 .swh-navbar-content .bread-crumbs li.bc-no-root {
     padding-top: 7px;
 }
 
 .main-sidebar {
     margin-top: 30px;
 }
 
 .content-wrapper {
     background: none;
 }
 
 .brand-image {
     max-height: 40px;
 }
 
 .brand-link {
     padding-top: 18.5px;
     padding-bottom: 18px;
     padding-left: 4px;
     border-bottom: 5px solid #e20026 !important;
 }
 
 .navbar-header a,
 ul.dropdown-menu a,
 ul.navbar-nav a,
 ul.nav-sidebar a {
     border-bottom-style: none;
     color: #323232;
 }
 
 .swh-sidebar .nav-link.active {
     color: #323232 !important;
     background-color: #e7e7e7 !important;
 }
 
 .swh-image-error {
     width: 80px;
     height: auto;
 }
 
 @media (max-width: 600px) {
     .swh-image-error {
         width: 40px;
         height: auto;
     }
 
     .swh-navbar-content h4 {
         font-size: 1rem;
     }
 }
 
 .form-check-label {
     padding-top: 4px;
 }
 
 .swh-id-option {
     display: inline-block;
     margin-right: 5px;
 }
 
 .nav-pills .nav-link:not(.active):hover {
     color: rgba(0, 0, 0, 0.55);
 }
 
 .swh-heading-color {
     color: #e20026 !important;
 }
 
 .sidebar-mini.sidebar-collapse .main-sidebar:hover {
     width: 4.6rem;
 }
 
 .sidebar-mini.sidebar-collapse .main-sidebar:hover .user-panel > .info,
 .sidebar-mini.sidebar-collapse .main-sidebar:hover .nav-sidebar .nav-link p,
 .sidebar-mini.sidebar-collapse .main-sidebar:hover .brand-text {
     visibility: hidden !important;
 }
 
 .sidebar .nav-link p,
 .main-sidebar .brand-text,
 .sidebar .user-panel .info {
     transition: none;
 }
 
 .sidebar-mini.sidebar-mini.sidebar-collapse .sidebar {
     padding-right: 0;
 }
 
 .swh-words-logo {
     position: absolute;
     top: 0;
     left: 0;
     width: 73px;
     height: 73px;
     text-align: center;
     font-size: 10pt;
     color: rgba(0, 0, 0, 0.75);
 }
 
 .swh-words-logo:hover {
     text-decoration: none;
 }
 
 .swh-words-logo-swh {
     line-height: 1;
     padding-top: 13px;
     visibility: hidden;
 }
 
 hr.swh-faded-line {
     border: 0;
     height: 1px;
     background-image: linear-gradient(to left, #f0f0f0, #8c8b8b, #f0f0f0);
 }
 
 .swh-readme-txt pre {
     background: none;
     border: none;
 }
 
+.swh-coverage-col {
+    padding-left: 10px;
+    padding-right: 10px;
+}
+
 .swh-coverage {
-    height: 65px;
+    height: calc(65px + 1em);
     padding-top: 0.3rem;
     border: none;
 }
 
 .swh-coverage a {
     text-decoration: none;
 }
 
 .swh-coverage-logo {
     display: block;
     width: 100%;
     height: 50px;
     margin-left: auto;
     margin-right: auto;
     object-fit: contain;
 
     /* polyfill for old browsers, see https://github.com/bfred-it/object-fit-images */
     font-family: 'object-fit: contain;';
 }
 
 .swh-coverage-list {
     width: 100%;
     height: 320px;
     border: none;
 }
 
 tr.swh-tr-hover-highlight {
     cursor: pointer;
 }
 
 tr.swh-tr-hover-highlight:hover td {
     background: #ededed;
 }
 
 tr.swh-api-doc-route a {
     text-decoration: none;
 }
diff --git a/swh/web/browse/views/origin.py b/swh/web/browse/views/origin.py
index f82cd5b6..0550d760 100644
--- a/swh/web/browse/views/origin.py
+++ b/swh/web/browse/views/origin.py
@@ -1,242 +1,292 @@
 # Copyright (C) 2017-2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import json
 
 from distutils.util import strtobool
 
+from django.core.cache import caches
 from django.http import HttpResponse
 from django.shortcuts import render, redirect
+from django.views.decorators.cache import never_cache
 
 from swh.web.common import service
 from swh.web.common.origin_visits import get_origin_visits
 from swh.web.common.utils import (
     reverse, format_utc_iso_date, parse_timestamp
 )
 from swh.web.common.exc import handle_view_exception
 from swh.web.browse.utils import (
     get_origin_info, get_snapshot_context
 )
 from swh.web.browse.browseurls import browse_route
+from swh.web.misc.coverage import code_providers
 
 from .utils.snapshot_context import (
     browse_snapshot_directory, browse_snapshot_content,
     browse_snapshot_log, browse_snapshot_branches,
     browse_snapshot_releases
 )
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/directory/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/directory/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/directory/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/directory/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/directory/', # noqa
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/directory/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_url>.+)/directory/', # noqa
               r'origin/(?P<origin_url>.+)/directory/(?P<path>.+)/', # noqa
               view_name='browse-origin-directory')
 def origin_directory_browse(request, origin_url, origin_type=None,
                             timestamp=None, path=None):
     """Django view for browsing the content of a directory associated
     to an origin for a given visit.
 
     The url scheme that points to it is the following:
 
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/directory/[(path)/]`
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visit/(timestamp)/directory/[(path)/]`
     """ # noqa
     return browse_snapshot_directory(
         request, origin_type=origin_type, origin_url=origin_url,
         timestamp=timestamp, path=path)
 
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/content/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/content/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/content/(?P<path>.+)/', # noqa
               r'origin/(?P<origin_url>.+)/content/(?P<path>.+)/', # noqa
               view_name='browse-origin-content')
 def origin_content_browse(request, origin_url, origin_type=None, path=None,
                           timestamp=None):
     """Django view that produces an HTML display of a content
     associated to an origin for a given visit.
 
     The url scheme that points to it is the following:
 
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/content/(path)/`
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visit/(timestamp)/content/(path)/`
 
     """ # noqa
     return browse_snapshot_content(request, origin_type=origin_type,
                                    origin_url=origin_url, timestamp=timestamp,
                                    path=path)
 
 
 PER_PAGE = 20
 
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/log/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/log/',
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/log/', # noqa
               r'origin/(?P<origin_url>.+)/log/',
               view_name='browse-origin-log')
 def origin_log_browse(request, origin_url, origin_type=None, timestamp=None):
     """Django view that produces an HTML display of revisions history (aka
     the commit log) associated to a software origin.
 
     The url scheme that points to it is the following:
 
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/log/`
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visit/(timestamp)/log/`
     """ # noqa
     return browse_snapshot_log(request, origin_type=origin_type,
                                origin_url=origin_url, timestamp=timestamp)
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/branches/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/branches/', # noqa
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/branches/', # noqa
               r'origin/(?P<origin_url>.+)/branches/', # noqa
               view_name='browse-origin-branches')
 def origin_branches_browse(request, origin_url, origin_type=None,
                            timestamp=None):
     """Django view that produces an HTML display of the list of branches
     associated to an origin for a given visit.
 
     The url scheme that points to it is the following:
 
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/branches/`
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visit/(timestamp)/branches/`
 
     """ # noqa
     return browse_snapshot_branches(request, origin_type=origin_type,
                                     origin_url=origin_url, timestamp=timestamp)
 
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/releases/', # noqa
               r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/releases/', # noqa
               r'origin/(?P<origin_url>.+)/visit/(?P<timestamp>.+)/releases/', # noqa
               r'origin/(?P<origin_url>.+)/releases/', # noqa
               view_name='browse-origin-releases')
 def origin_releases_browse(request, origin_url, origin_type=None,
                            timestamp=None):
     """Django view that produces an HTML display of the list of releases
     associated to an origin for a given visit.
 
     The url scheme that points to it is the following:
 
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/releases/`
         * :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visit/(timestamp)/releases/`
 
     """ # noqa
     return browse_snapshot_releases(request, origin_type=origin_type,
                                     origin_url=origin_url, timestamp=timestamp)
 
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/visits/',
               r'origin/(?P<origin_url>.+)/visits/',
               view_name='browse-origin-visits')
 def origin_visits_browse(request, origin_url, origin_type=None):
     """Django view that produces an HTML display of visits reporting
     for a swh origin identified by its id or its url.
 
     The url that points to it is :http:get:`/browse/origin/[(origin_type)/url/](origin_url)/visits/`.
     """ # noqa
     try:
         origin_info = get_origin_info(origin_url, origin_type)
         origin_visits = get_origin_visits(origin_info)
         snapshot_context = get_snapshot_context(origin_type=origin_type,
                                                 origin_url=origin_url)
     except Exception as exc:
         return handle_view_exception(request, exc)
 
     for i, visit in enumerate(origin_visits):
         url_date = format_utc_iso_date(visit['date'], '%Y-%m-%dT%H:%M:%SZ')
         visit['fmt_date'] = format_utc_iso_date(visit['date'])
         query_params = {}
         if i < len(origin_visits) - 1:
             if visit['date'] == origin_visits[i+1]['date']:
                 query_params = {'visit_id': visit['visit']}
         if i > 0:
             if visit['date'] == origin_visits[i-1]['date']:
                 query_params = {'visit_id': visit['visit']}
 
         snapshot = visit['snapshot'] if visit['snapshot'] else ''
 
         visit['browse_url'] = reverse('browse-origin-directory',
                                       url_args={'origin_type': origin_type,
                                                 'origin_url': origin_url,
                                                 'timestamp': url_date},
                                       query_params=query_params)
         if not snapshot:
             visit['snapshot'] = ''
         visit['date'] = parse_timestamp(visit['date']).timestamp()
 
     heading = 'Origin visits - %s' % origin_url
 
     return render(request, 'browse/origin-visits.html',
                   {'heading': heading,
                    'swh_object_name': 'Visits',
                    'swh_object_metadata': origin_info,
                    'origin_visits': origin_visits,
                    'origin_info': origin_info,
                    'snapshot_context': snapshot_context,
                    'vault_cooking': None,
                    'show_actions_menu': False})
 
 
 @browse_route(r'origin/search/(?P<url_pattern>.+)/',
               view_name='browse-origin-search')
 def _origin_search(request, url_pattern):
     """Internal browse endpoint to search for origins whose urls contain
     a provided string pattern or match a provided regular expression.
     The search is performed in a case insensitive way.
     """
     offset = int(request.GET.get('offset', '0'))
     limit = int(request.GET.get('limit', '50'))
     regexp = request.GET.get('regexp', 'false')
     with_visit = request.GET.get('with_visit', 'false')
 
     url_pattern = url_pattern.replace('///', '\\')
 
     try:
         results = service.search_origin(url_pattern, offset, limit,
                                         bool(strtobool(regexp)),
                                         bool(strtobool(with_visit)))
 
         results = json.dumps(list(results), sort_keys=True, indent=4,
                              separators=(',', ': '))
     except Exception as exc:
         return handle_view_exception(request, exc, html_response=False)
 
     return HttpResponse(results, content_type='application/json')
 
 
+@browse_route(r'origin/coverage_count/',
+              view_name='browse-origin-coverage-count')
+@never_cache
+def _origin_coverage_count(request):
+    """Internal browse endpoint to count the number of origins associated
+    to each code provider declared in the archive coverage list.
+    As this operation takes some times, we execute it once per day and
+    cache its results to database. The cached origin counts are then served.
+    Cache management is handled in the implementation to avoid sending
+    the same count query twice to the storage database.
+    """
+    try:
+        cache = caches['db_cache']
+        results = []
+        for code_provider in code_providers:
+            provider_id = code_provider['provider_id']
+            url_regexp = code_provider['origin_url_regexp']
+            cache_key = '%s_origins_count' % provider_id
+            prev_cache_key = '%s_origins_prev_count' % provider_id
+            # get cached origin count
+            origin_count = cache.get(cache_key, -2)
+            # cache entry has expired or does not exist
+            if origin_count == -2:
+                # mark the origin count as processing
+                cache.set(cache_key, -1, timeout=10*60)
+                # execute long count query
+                origin_count = service.storage.origin_count(url_regexp,
+                                                            regexp=True)
+                # cache count result
+                cache.set(cache_key, origin_count, timeout=24*60*60)
+                cache.set(prev_cache_key, origin_count, timeout=None)
+            # origin count is currently processing
+            elif origin_count == -1:
+                # return previous count if it exists
+                origin_count = cache.get(prev_cache_key, -1)
+            results.append({
+                'provider_id': provider_id,
+                'origin_count': origin_count,
+                'origin_types': code_provider['origin_types']
+            })
+        results = json.dumps(results)
+    except Exception as exc:
+        return handle_view_exception(request, exc, html_response=False)
+
+    return HttpResponse(results, content_type='application/json')
+
+
 @browse_route(r'origin/(?P<origin_id>[0-9]+)/latest_snapshot/',
               view_name='browse-origin-latest-snapshot')
 def _origin_latest_snapshot(request, origin_id):
     """
     Internal browse endpoint used to check if an origin has already
     been visited by Software Heritage and has at least one full visit.
     """
     result = \
         service.lookup_latest_origin_snapshot(origin_id,
                                               allowed_statuses=['full',
                                                                 'partial'])
 
     result = json.dumps(result, sort_keys=True, indent=4,
                         separators=(',', ': '))
 
     return HttpResponse(result, content_type='application/json')
 
 
 @browse_route(r'origin/(?P<origin_type>[a-z]+)/url/(?P<origin_url>.+)/',
               r'origin/(?P<origin_url>.+)/',
               view_name='browse-origin')
 def origin_browse(request, origin_url, origin_type=None):
     """Django view that redirects to the display of the latest archived
     snapshot for a given software origin.
     """ # noqa
     last_snapshot_url = reverse('browse-origin-directory',
                                 url_args={'origin_type': origin_type,
                                           'origin_url': origin_url})
     return redirect(last_snapshot_url)
diff --git a/swh/web/config.py b/swh/web/config.py
index b21e1faa..45c34b76 100644
--- a/swh/web/config.py
+++ b/swh/web/config.py
@@ -1,131 +1,132 @@
 # Copyright (C) 2017-2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from swh.core import config
 from swh.storage import get_storage
 from swh.indexer.storage import get_indexer_storage
 from swh.vault.api.client import RemoteVaultClient
 from swh.scheduler import get_scheduler
 
 
 DEFAULT_CONFIG = {
     'allowed_hosts': ('list', []),
     'storage': ('dict', {
         'cls': 'remote',
         'args': {
             'url': 'http://127.0.0.1:5002/',
             'timeout': 10,
         },
     }),
     'indexer_storage': ('dict', {
         'cls': 'remote',
         'args': {
             'url': 'http://127.0.0.1:5007/',
             'timeout': 1,
         }
     }),
     'vault': ('string', 'http://127.0.0.1:5005/'),
     'log_dir': ('string', '/tmp/swh/log'),
     'debug': ('bool', False),
     'serve_assets': ('bool', False),
     'host': ('string', '127.0.0.1'),
     'port': ('int', 5004),
     'secret_key': ('string', 'development key'),
     # do not display code highlighting for content > 1MB
     'content_display_max_size': ('int', 1024 * 1024),
     'snapshot_content_max_size': ('int', 1000),
     'throttling': ('dict', {
         'cache_uri': None,  # production: memcached as cache (127.0.0.1:11211)
                             # development: in-memory cache so None
         'scopes': {
             'swh_api': {
                 'limiter_rate': {
                     'default': '120/h'
                 },
                 'exempted_networks': ['127.0.0.0/8']
             },
             'swh_vault_cooking': {
                 'limiter_rate': {
                     'default': '120/h',
                     'GET': '60/m'
                 },
                 'exempted_networks': ['127.0.0.0/8']
             },
             'swh_save_origin': {
                 'limiter_rate': {
                     'default': '120/h',
                     'POST': '10/h'
                 },
                 'exempted_networks': ['127.0.0.0/8']
             }
         }
     }),
     'scheduler': ('dict', {
         'cls': 'remote',
         'args': {
             'url': 'http://localhost:5008/'
         }
     }),
     'grecaptcha': ('dict', {
         'activated': True,
         'validation_url': 'https://www.google.com/recaptcha/api/siteverify',
         'site_key': '',
         'private_key': ''
     }),
     'production_db': ('string', '/var/lib/swh/web.sqlite3'),
     'deposit': ('dict', {
         'private_api_url': 'https://deposit.softwareheritage.org/1/private/',
         'private_api_user': 'swhworker',
         'private_api_password': ''
-    })
+    }),
+    'coverage_count_origins': ('bool', False)
 }
 
 swhweb_config = {}
 
 
 def get_config(config_file='web/web'):
     """Read the configuration file `config_file`, update the app with
        parameters (secret_key, conf) and return the parsed configuration as a
        dict. If no configuration file is provided, return a default
        configuration."""
 
     if not swhweb_config:
         cfg = config.load_named_config(config_file, DEFAULT_CONFIG)
         swhweb_config.update(cfg)
         config.prepare_folders(swhweb_config, 'log_dir')
         swhweb_config['storage'] = get_storage(**swhweb_config['storage'])
         swhweb_config['vault'] = RemoteVaultClient(swhweb_config['vault'])
         swhweb_config['indexer_storage'] = \
             get_indexer_storage(**swhweb_config['indexer_storage'])
         swhweb_config['scheduler'] = get_scheduler(**swhweb_config['scheduler']) # noqa
     return swhweb_config
 
 
 def storage():
     """Return the current application's storage.
 
     """
     return get_config()['storage']
 
 
 def vault():
     """Return the current application's vault.
 
     """
     return get_config()['vault']
 
 
 def indexer_storage():
     """Return the current application's indexer storage.
 
     """
     return get_config()['indexer_storage']
 
 
 def scheduler():
     """Return the current application's scheduler.
 
     """
     return get_config()['scheduler']
diff --git a/swh/web/misc/coverage.py b/swh/web/misc/coverage.py
index 0b88c071..0c736919 100644
--- a/swh/web/misc/coverage.py
+++ b/swh/web/misc/coverage.py
@@ -1,76 +1,111 @@
 # Copyright (C) 2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from django.shortcuts import render
 from django.views.decorators.clickjacking import xframe_options_exempt
 
+from swh.web.config import get_config
+
 # Current coverage list of the archive
 # TODO: Retrieve that list dynamically instead of hardcoding it
-_code_providers = [
+code_providers = [
     {
+        'provider_id': 'debian',
         'provider_url': 'https://www.debian.org/',
         'provider_logo': 'img/logos/debian.png',
         'provider_info': 'source packages from the Debian distribution '
                          '(continuously archived)',
+        'origin_url_regexp': '^deb://',
+        'origin_types': 'packages',
     },
     {
+        'provider_id': 'framagit',
         'provider_url': 'https://framagit.org/',
         'provider_logo': 'img/logos/framagit.png',
         'provider_info': 'public repositories from Framagit '
                          '(continuously archived)',
+        'origin_url_regexp': '^https://framagit.org/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'github',
         'provider_url': 'https://github.com',
         'provider_logo': 'img/logos/github.png',
         'provider_info': 'public repositories from GitHub '
                          '(continuously archived)',
+        'origin_url_regexp': '^https://github.com/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'gitlab',
         'provider_url': 'https://gitlab.com',
         'provider_logo': 'img/logos/gitlab.svg',
         'provider_info': 'public repositories from GitLab '
                          '(continuously archived)',
+        'origin_url_regexp': '^https://gitlab.com/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'gitorious',
         'provider_url': 'https://gitorious.org/',
         'provider_logo': 'img/logos/gitorious.png',
         'provider_info': 'public repositories from the former Gitorious code '
                          'hosting service',
+        'origin_url_regexp': '^https://gitorious.org/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'googlecode',
         'provider_url': 'https://code.google.com/archive/',
         'provider_logo': 'img/logos/googlecode.png',
         'provider_info': 'public repositories from the former Google Code '
                          'project hosting service',
+        'origin_url_regexp': '^http.*.googlecode.com/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'gnu',
         'provider_url': 'https://www.gnu.org',
         'provider_logo': 'img/logos/gnu.png',
         'provider_info': 'releases from the GNU project (as of August 2015)',
+        'origin_url_regexp': '^rsync://ftp.gnu.org/',
+        'origin_types': 'releases',
     },
     {
+        'provider_id': 'hal',
         'provider_url': 'https://hal.archives-ouvertes.fr/',
         'provider_logo': 'img/logos/hal.png',
         'provider_info': 'scientific software source code deposited in the '
-                         'open archive HAL'
+                         'open archive HAL',
+        'origin_url_regexp': '^https://hal.archives-ouvertes.fr/',
+        'origin_types': 'deposits',
+
     },
     {
+        'provider_id': 'inria',
         'provider_url': 'https://gitlab.inria.fr',
         'provider_logo': 'img/logos/inria.jpg',
         'provider_info': 'public repositories from Inria GitLab '
                          '(continuously archived)',
+        'origin_url_regexp': '^https://gitlab.inria.fr/',
+        'origin_types': 'repositories',
     },
     {
+        'provider_id': 'pypi',
         'provider_url': 'https://pypi.org',
         'provider_logo': 'img/logos/pypi.svg',
         'provider_info': 'source packages from the Python Packaging Index '
                          '(continuously archived)',
+        'origin_url_regexp': '^https://pypi.org/',
+        'origin_types': 'packages',
     },
 ]
 
 
 @xframe_options_exempt
 def swh_coverage(request):
-    return render(request, 'coverage.html', {'providers': _code_providers})
+    count_origins = get_config()['coverage_count_origins']
+    return render(request, 'coverage.html', {'providers': code_providers,
+                                             'count_origins': count_origins})
diff --git a/swh/web/settings/common.py b/swh/web/settings/common.py
index b62e388f..eafb2943 100644
--- a/swh/web/settings/common.py
+++ b/swh/web/settings/common.py
@@ -1,235 +1,245 @@
 # Copyright (C) 2017-2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 
 """
 Django common settings for swh-web.
 """
 
 import os
 
 from swh.web.config import get_config
 
 swh_web_config = get_config()
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 PROJECT_DIR = os.path.dirname(os.path.abspath(__file__))
 
 # Quick-start development settings - unsuitable for production
 # See https://docs.djangoproject.com/en/1.11/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = swh_web_config['secret_key']
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = swh_web_config['debug']
 DEBUG_PROPAGATE_EXCEPTIONS = swh_web_config['debug']
 
 ALLOWED_HOSTS = ['127.0.0.1', 'localhost'] + swh_web_config['allowed_hosts']
 
 # Application definition
 
 INSTALLED_APPS = [
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'rest_framework',
     'swh.web.common',
     'swh.web.api',
     'swh.web.browse',
     'webpack_loader',
     'django_js_reverse'
 ]
 
 MIDDLEWARE = [
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'swh.web.common.middlewares.ThrottlingHeadersMiddleware'
 ]
 
 # Compress all assets (static ones and dynamically generated html)
 # served by django in a local development environment context.
 # In a production environment, assets compression will be directly
 # handled by web servers like apache or nginx.
 if swh_web_config['serve_assets']:
     MIDDLEWARE.insert(0, 'django.middleware.gzip.GZipMiddleware')
 
 ROOT_URLCONF = 'swh.web.urls'
 
 TEMPLATES = [
     {
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
         'DIRS': [os.path.join(PROJECT_DIR, "../templates")],
         'APP_DIRS': True,
         'OPTIONS': {
             'context_processors': [
                 'django.template.context_processors.debug',
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
                 'swh.web.common.utils.context_processor'
             ],
             'libraries': {
                 'swh_templatetags': 'swh.web.common.swh_templatetags',
             },
         },
     },
 ]
 
 WSGI_APPLICATION = 'swh.web.wsgi.application'
 
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
         'NAME': os.path.join(PROJECT_DIR, 'db.sqlite3'),
     }
 }
 
 # Password validation
 # https://docs.djangoproject.com/en/1.11/ref/settings/#auth-password-validators
 
 AUTH_PASSWORD_VALIDATORS = [
     {
         'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',  # noqa
     },
     {
         'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',  # noqa
     },
 ]
 
 
 # Internationalization
 # https://docs.djangoproject.com/en/1.11/topics/i18n/
 
 LANGUAGE_CODE = 'en-us'
 
 TIME_ZONE = 'UTC'
 
 USE_I18N = True
 
 USE_L10N = True
 
 USE_TZ = True
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/1.11/howto/static-files/
 
 STATIC_URL = '/static/'
 STATICFILES_DIRS = [
     os.path.join(PROJECT_DIR, "../static")
 ]
 
 INTERNAL_IPS = ['127.0.0.1']
 
 throttle_rates = {}
 
 http_requests = ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'OPTIONS', 'PATCH']
 
 throttling = swh_web_config['throttling']
 for limiter_scope, limiter_conf in throttling['scopes'].items():
     if 'default' in limiter_conf['limiter_rate']:
         throttle_rates[limiter_scope] = limiter_conf['limiter_rate']['default']
     # for backward compatibility
     else:
         throttle_rates[limiter_scope] = limiter_conf['limiter_rate']
     # register sub scopes specific for HTTP request types
     for http_request in http_requests:
         if http_request in limiter_conf['limiter_rate']:
             throttle_rates[limiter_scope + '_' + http_request.lower()] = \
                 limiter_conf['limiter_rate'][http_request]
 
 REST_FRAMEWORK = {
     'DEFAULT_RENDERER_CLASSES': (
         'rest_framework.renderers.JSONRenderer',
         'swh.web.api.renderers.YAMLRenderer',
         'rest_framework.renderers.TemplateHTMLRenderer'
     ),
     'DEFAULT_THROTTLE_CLASSES': (
         'swh.web.common.throttling.SwhWebRateThrottle',
     ),
     'DEFAULT_THROTTLE_RATES': throttle_rates
 }
 
 LOGGING = {
     'version': 1,
     'disable_existing_loggers': False,
     'filters': {
         'require_debug_false': {
             '()': 'django.utils.log.RequireDebugFalse',
         },
         'require_debug_true': {
             '()': 'django.utils.log.RequireDebugTrue',
         },
     },
     'formatters': {
         'verbose': {
             'format': '[%(asctime)s] [%(levelname)s] %(request)s %(status_code)s', # noqa
             'datefmt': "%d/%b/%Y %H:%M:%S"
         },
     },
     'handlers': {
         'console': {
             'level': 'DEBUG',
             'filters': ['require_debug_true'],
             'class': 'logging.StreamHandler',
         },
         'file': {
             'level': 'INFO',
             'filters': ['require_debug_false'],
             'class': 'logging.FileHandler',
             'filename': os.path.join(swh_web_config['log_dir'], 'swh-web.log'),
             'formatter': 'verbose'
         },
         'null': {
             'class': 'logging.NullHandler',
         },
     },
     'loggers': {
         'django': {
             'handlers': ['console', 'file'],
             'level': 'DEBUG' if DEBUG else 'INFO',
             'propagate': True,
         },
         'django.request': {
             'handlers': ['file'],
             'level': 'DEBUG' if DEBUG else 'INFO',
             'propagate': False,
         },
         'django.db.backends': {
             'handlers': ['null'],
             'propagate': False
         }
     },
 }
 
 WEBPACK_LOADER = { # noqa
     'DEFAULT': {
         'CACHE': False,
         'BUNDLE_DIR_NAME': './',
         'STATS_FILE': os.path.join(PROJECT_DIR, '../static/webpack-stats.json'), # noqa
         'POLL_INTERVAL': 0.1,
         'TIMEOUT': None,
         'IGNORE': ['.+\.hot-update.js', '.+\.map']
     }
 }
 
 LOGIN_URL = '/admin/login/'
 LOGIN_REDIRECT_URL = 'admin'
 
 SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
+
+CACHES = {
+    'default': {
+        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'
+    },
+    'db_cache': {
+        'BACKEND': 'django.core.cache.backends.db.DatabaseCache',
+        'LOCATION': 'swh_web_cache',
+    }
+}
diff --git a/swh/web/settings/production.py b/swh/web/settings/production.py
index 48357f5b..3987ea03 100644
--- a/swh/web/settings/production.py
+++ b/swh/web/settings/production.py
@@ -1,54 +1,54 @@
 # Copyright (C) 2017-2018  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU Affero General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 # flake8: noqa
 
 """
 Django production settings for swh-web.
 """
 
 import os
 
 from .common import *
 from .common import swh_web_config
 from .common import REST_FRAMEWORK
 
 # activate per-site caching
 if 'GZip' in MIDDLEWARE[0]:
     MIDDLEWARE.insert(1, 'django.middleware.cache.UpdateCacheMiddleware')
 else:
     MIDDLEWARE.insert(0, 'django.middleware.cache.UpdateCacheMiddleware')
 
 MIDDLEWARE += ['swh.web.common.middlewares.HtmlMinifyMiddleware',
                 'django.middleware.cache.FetchFromCacheMiddleware']
 
-CACHES = {
+CACHES.update({
     'default': {
         'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
         'LOCATION': swh_web_config['throttling']['cache_uri'],
     }
 }
 
 # Setup support for proxy headers
 USE_X_FORWARDED_HOST = True
 SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
 
 # We're going through seven (or, in that case, 2) proxies thanks to Varnish
 REST_FRAMEWORK['NUM_PROXIES'] = 2
 
 ALLOWED_HOSTS += [
     'archive.softwareheritage.org',
     'base.softwareheritage.org',
     'archive.internal.softwareheritage.org',
 ]
 
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
         'NAME': swh_web_config['production_db'],
     }
 }
 
 WEBPACK_LOADER['DEFAULT']['CACHE'] = True
diff --git a/swh/web/templates/coverage.html b/swh/web/templates/coverage.html
index 2877a9ef..844e1e98 100644
--- a/swh/web/templates/coverage.html
+++ b/swh/web/templates/coverage.html
@@ -1,43 +1,67 @@
 {% comment %}
 Copyright (C) 2015-2018  The Software Heritage developers
 See the AUTHORS file at the top-level directory of this distribution
 License: GNU Affero General Public License version 3, or any later version
 See top-level LICENSE file for more information
 {% endcomment %}
 
 <!DOCTYPE html>
 
 {% load static %}
 {% load render_bundle from webpack_loader %}
 
 <html lang="en">
   <head>
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
     <title>Software Heritage archive coverage</title>
     {% render_bundle 'vendors' %}
     {% render_bundle 'webapp' %}
+    <script src="{% url 'js_reverse' %}" type="text/javascript"></script>
     <base target="_parent">
   </head>
 
   <body style="padding-bottom: 0;">
     <div class="content-wrapper" style="margin-left: 0;" data-iframe-height>
       <div class="content">
         <div class="container-fluid">
           <div class="row">
             {% for provider in providers %}
-              <div class="col-md-2">
-                <div class="card swh-coverage" title="{{ provider.provider_info }}">
+              <div class="col-md-2 swh-coverage-col">
+                <div class="card swh-coverage" id="{{ provider.provider_id }}" title="{{ provider.provider_info }}">
                   <a href="{{ provider.provider_url }}">
                     <img class="card-img-top swh-coverage-logo" src="{% static provider.provider_logo %}">
                   </a>
+                  <div class="text-center swh-coverage-origin-count"></div>
                 </div>
               </div>
             {% endfor %}
           </div>
         </div>
       </div>
     </div>
   </body>
+  {% if count_origins %}
+    <script>
+      $.ajax({
+        url: Urls.browse_origin_coverage_count(),
+        dataType: 'json',
+        success: function (data) {
+          for (var i = 0 ; i < data.length; ++i) {
+            var origin_count = data[i].origin_count;
+            var provider_id = data[i].provider_id;
+            var origin_types = data[i].origin_types;
+            if (origin_count < 0) {
+              $('.swh-coverage-origin-count').text('');
+              break;
+            } else {
+              var text = origin_count.toLocaleString() + ' ' + origin_types;
+              $('#'+provider_id + ' .swh-coverage-origin-count').text(text);
+            }
+          }
+        }
+      });
+    </script>
+  {% endif %}
 </html>