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Your site vs. core-js average

Your site
83
core-js average
74
CategoryYour scorePeer avgDeltaPercentile
Performance8774+13—
Security7868+10—
Accessibility7963+16—
SEO9390+3—
Infrastructure8986+3—
Compliance7477-3—
Content9182+9—
Sustainability8170+11—

Better than 93% of core-js sites

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Category: JavaScript libraries

core-js

Based on 2046 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
2046
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 1802 websites using core-js →
SitePerformanceGradeAudited
www.mossandmolt.com52B2026-11-09
schalke04.de33B2026-11-09
schalke04.de13B2026-11-09
edgepharma.com72B2026-11-09
fabioantichi.it60B2026-11-09
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

Commonly Used With

Sites that use core-js also commonly use:

Open Graph Miscellaneous 1760Google Tag Manager Tag managers 1470Google Search Console Analytics 1394Google Analytics Analytics 1187jQuery JavaScript libraries 1069Priority Hints Performance 1050HSTS Security 972Microsoft Analytics 963Cloudflare CDN 748Facebook SDK Analytics 710

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 2046 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 2046 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.

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