Home / Technologies / Analytics / Matomo

Analytics

Matomo in Homepage Source

Matomo (formerly Piwik) is an open-source, self-hostable web-analytics platform.

The source-code fingerprint

Every Matomo/Piwik install defines the _paq command queue (var _paq = ...; _paq.push([...])), so _paq appears inline wherever the tracker runs.

Likely false positives: None significant, _paq is a Matomo-specific global.

Stored source examples for Matomo

These examples matched _paq in stored homepage source when the query was sampled on 2026-10-14. The sites may have changed since the source was captured. A match establishes a source reference; it does not confirm an active installation or code execution.

• datatracker.ietf.org ...tf/js/navbar-doc-search.js"></script>\n \n<script>\n var _paq = window._paq || [];\n \n _paq.push(['disableCookies']);\n ...
• www.ietf.org ...ndow.staticRoot = "/static/dist/";</script> \n<script>\n var _paq = window._paq || [];\n \n _paq.push(['disableCookies']);\n ...
• www.apache.org ...itle = 'Welcome to The Apache Software Foundation';\n var _paq = window._paq = window._paq || [];\n /* tracker methods l...
• zenodo.org ... essential cookies</button>\n </div>\n</div>\n\n<script>\n var _paq = window._paq = window._paq || [];\n _paq.push(['requireCoo...
• www.monheim.de ...7614"></script>\n<script type="text/javascript">\n var _paq = _paq || [];\n _paq.push(['trackPageView']);\n ...
• openlibrary.org ..." — ID must match Matomo admin config (issue #12144)\n var _paq = window._paq = window._paq || [];\n _paq.push(['setCustomDi...
• gdpr-info.eu ...-video-preview:-1' />\n\n<!-- Begin Matomo -->\n<script>\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• w3techs.com ...s"></script>\n<body>\r\n<script type="text/javascript">\r\n var _paq = window._paq = window._paq || [];\r\n _paq.push(['trackPage...
• unicornriot.ninja ...cript><!-- Matomo -->\n<script type="text/javascript">\n var _paq = window._paq || [];\n /* tracker methods like "setCustomDi...
• www.govinfo.gov ... </div>\n\n \n\t\n\t<!--script type="text/javascript">\n var _paq = _paq || [];\n _paq.push(['trackPageView']);\n _paq.pu...
• www.vogelsbergkreis.de ...e/app-service-worker.js');\n }\n})();</script>\n<script>var _paq = _paq || [];\n_paq.push(['trackPageView']);\n_paq.push(['ena...
• www.esa.int ...et, Galileo, comet, education, Venus ">\n\t\t\t\n\t\n\t<script>\nvar _paq = window._paq = window._paq || [];\n_paq.push(["setDomains",...
• www.imperva.com ...toggle="modal" data-target="#video-featured-modal" onclick="_paq.push(['trackEvent', 'Featured News Video', 'Click', 'How Sa...
• wikimediafoundation.org ...ipt>\n\t<!-- Matomo -->\n\t<script type="text/javascript">\n\tvar _paq = window._paq = window._paq || [];\n\t/* tracker methods like...
• perma.cc ...-- Matomo -->\n <script type="text/javascript">\n var _paq = window._paq || [];\n /* tracker methods like "setCust...
• cyber.harvard.edu ...ow_ad_personalization_signals":false});</script><script>var _paq = _paq || [];(function(){var u=(("https:" == document.locat...
• www.unige.ch .../js/scripts.min.js"></script><!-- Matomo -->\n<script>\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• www.swr.de ...1.xiti.com';\nwindow._pac.tvrd = '2';\n// piano queue;\nwindow._paq = window._paq || [];\n</script>\n\n</head>\n<body class="home r...
• www.bis.org ...ad>\n \n <meta charset="utf-8" />\n<script>var _paq = _paq || [];(function(){var u=(("https:" == document.locat...
• cookiedatabase.org ...CPA -->\n\t\t\t\t\t\t<script \t\t\t\t\t\t\tdata-category="functional">var _paq = window._paq || [];\n_paq.push(['trackPageView']);\n_paq.pus...
• www.comunidad.madrid ...LVfJ5_Uriwr9xdsBGVN76ATMdjf211v4s.js"></script>\n<script>var _paq = _paq || [];(function(){var u=(("https:" == document.locat...
• www.crossref.org ...ion.href=t.url})})</script><script type=text/javascript>var _paq=_paq||[];_paq.push(["trackPageView"]),_paq.push(["enableLin...
• journals.openedition.org ... Piwik --> \n <script type="text/javascript"> var _paq = _paq || [];\n // tracker methods like "setCustomDimensi...
• www.cj.com ... \n-->\n\n\n<!-- Matomo CJ + Junction-->\n<script>\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• www.fsf.org ...4b4693e3816e664797050&dn=gpl-3.0.txt GPL-3.0-or-later\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• www.designboom.com ...ment,"clarity","script","59012gt9wq");</script> <script>var _paq=window._paq=window._paq||[];_paq.push(['trackPageView']);_p...
• home.cern ...ctivity-js-modulepreload" fetchpriority="low">\n<script>\nvar _paq = window._paq = window._paq || [];\n/* tracker methods like ...
• edri.org ...:"conservative"}]}\n</script>\n<!-- Matomo -->\n<script>\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• world.openfoodfacts.org ...ody class="products_page">\n\n\t<!-- Matomo -->\n<script>\n var _paq = window._paq = window._paq || [];\n /* tracker methods lik...
• escholarship.org ...a-type="application/javascript" data-name="matomo">\n var _paq = window._paq = window._paq || [];\n /* tracker methods l...

Showing 30 checked source examples. The headline is estimated matches. Open the full ranked list, inspect the matched source, and export the domain list →

Related technologies

How this works

The headline distinguishes candidate upper bounds (index prefilter), estimated matches (a projection from checked samples) and verified matches (an exact count established by the engine). The index contains 131,219,565 homepage documents, one homepage per hostname, including subdomains. The source index was promoted 2026-09-22 and follows a quarterly rebuild schedule. The sample date is when this query was checked against the stored index, not a new crawl of each example site.

Comparing adoption across tools? The Web Technology Adoption Report ranks the most common tags in the index side by side.