Skip to content

Your site vs. core-js average

Your site
82
core-js average
74
CategoryYour scorePeer avgDeltaPercentile
Performance8374+9—
Security7868+10—
Accessibility7963+16—
SEO9190+1—
Infrastructure8986+3—
Compliance7577-2—
Content8382+1—
Sustainability8570+15—

Better than 90% of core-js sites

Run another audit to improve your score →

Category: JavaScript libraries

core-js

Based on 2041 real audits

37
Avg. Performance
88
Avg. Accessibility
86
Avg. Best Practices
91
Avg. SEO
68
Avg. Security
74
Avg. Composite
37 /100
Avg. Performance
483 ms
Avg. TTFB
74 /100
Avg. Composite
2041
Sites Audited

How core-js sites compare

core-js sites tend to score below average on performance (37/100), compared to the global average of 59/100.

Recent Audits

View adoption trends → See all 1799 websites using core-js →
SitePerformanceGradeAudited
www.tradingtitans007.sbs45B2026-11-08
www.mossandmolt.com50B2026-11-07
www.vanguardmexico.com33C2026-11-06
www.alessandrorosina.it52B2026-11-06
www.lapressemedia.it35B2026-11-06
capri-world.com55B2026-11-06
Retelit.it48C2026-11-06
courageous-pithivier-1ca553.netlify.app/?fbclid=fbclid58B2026-11-06
www.mossandmolt.com51B2026-11-05
ezcloud.vn50B2026-11-05

Commonly Used With

Sites that use core-js also commonly use:

Open Graph Miscellaneous 1755Google Tag Manager Tag managers 1467Google Search Console Analytics 1391Google Analytics Analytics 1184jQuery JavaScript libraries 1065Priority Hints Performance 1048HSTS Security 969Microsoft Analytics 960Cloudflare CDN 745Facebook SDK Analytics 708

Compare with...

core-js vs Open Graphcore-js vs Google Tag Managercore-js vs Google Search Consolecore-js vs Google Analyticscore-js vs jQuerycore-js vs Priority Hintscore-js vs HSTScore-js vs Microsoftcore-js vs Cloudflarecore-js vs Facebook SDK

FAQ

What is the average Lighthouse performance score for core-js sites?
Based on 2041 real audits, core-js sites score an average of 37/100 on Lighthouse performance.
How does core-js compare on web security?
core-js sites score an average security grade of 68/100 in BeaverCheck audits.
What is the average page load time for core-js websites?
The average Time to First Byte (TTFB) for core-js sites is 483ms based on 2041 audits.
How can I improve my core-js site's performance?
Run a free audit on BeaverCheck to get specific recommendations for your core-js site. Common issues include render-blocking resources, unoptimized images, and missing caching headers.

Audit your core-js site now

Run Audit

Send Feedback