About HeadJS
HeadJS is a JavaScript library that optimizes web performance by managing the loading and execution of scripts and stylesheets to ensure faster page loads and efficient resource handling.
How many people use HeadJS
GitHub · npm- #6
Turbo7.4k - #7
Instant.Page6.2k - #8
InstantClick5.5k - #9HeadJS4.1k
- #10
Google PageSpeed692 - #11
Performance Lab460 - #12
Autoptimize288
#9 of 18 Performance we have counts for (of 52) · bars are GitHub stars across these neighbours; the category leader is LazySizes at 18k · as of August 30, 2026
Compare
HeadJS#9 of 18 Performance
InstantClick#8 of 18 Performance
The two numbers disagree - one leads on stars, the other on installs. Stars measure attention, downloads measure use.
Audit any site that runs HeadJS.
Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.
How we audit HeadJS
We measure the detected version against HeadJS's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.
How the score worksMore technologies in Performance
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