As of October 27, 2026, HeadJS is used by 14,455 websites in the TechLeads index: 0.41% of all Performance detections, the 23rd most-used of 45 Performance technologies.
14,455
websites using HeadJS
0.41%
share of Performance
#23
of 45 in Performance
HeadJS vs competitors in Performance
Websites using each technology in the TechLeads index, and its share of all Performance detections.
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.
HeadJS usage over time
In HTTP Archive's monthly crawl of public websites, HeadJS was detected on 21,405 pages in September 2026, down 53.3% from a year earlier (peak: 58,860). Among the 1,000 most-visited sites, it appeared on 1. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other JavaScript Libraries technologies in HTTP Archive: jQuery 32,400,479, core-js 20,296,277, jQuery Migrate 14,931,388, jQuery UI 10,564,965, Swiper 7,844,933.
TechLeads scans public websites and detects HeadJS from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is HeadJS's website count divided by the website counts of all Performance technologies we track; a site using two Performance tools counts for both. Counts were last refreshed on October 27, 2026 and update daily.
FAQ
Q01What is HeadJS's market share?
HeadJS accounts for 0.41% of Performance detections in the TechLeads index (14,455 websites), which makes it the 23rd most-used of 45 Performance technologies we track.
Q02How many companies use HeadJS?
TechLeads currently detects HeadJS on 14,455 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 21,405 pages in September 2026.
Q03Who are HeadJS's biggest competitors?
By number of websites, the largest Performance technologies besides HeadJS are LazySizes (1,521,853), WP Fastest Cache (355,398), Autoptimize (254,930), EWWW Image Optimizer (246,795), Cloudflare Rocket Loader (204,240).
Q04Which companies use HeadJS?
Websites using HeadJS include ynet.co.il, books.com.tw, libertaddigital.com, slideonline.com, side-gallery.com, face2faceafrica.com. The full list of 14,455 websites can be exported as a CSV for $29.
