MooTools is an object-oriented JavaScript framework, still shipped by older Joomla sites.
About 41,498 websites in the PageSourceSearch index contain the code that reveals it; the 49 highest-ranked are listed below.
How is MooTools detected?
The MooTools core build is loaded from a file named mootools-core, which the page's script tag references. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About MooTools
Top 50 websites using MooTools
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-10-04 15:16:59 UTC; the list stopped short of 50 because the search's budget ran out.
How does PageSourceSearch know a website uses MooTools?
By the source itself: The MooTools core build is loaded from a file named mootools-core, which the page's script tag references. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using MooTools?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of about 41,498 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use MooTools together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example mootools-core with wp-content/plugins/ lists the WordPress sites that use MooTools.