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Your site vs. core-js average

Your site
68
core-js average
72
CategoryYour scorePeer avgDelta
Performance6771-4
Security6064-4
Accessibility4658-12
SEO9190+1
Infrastructure86860
Compliance79790
Content7283-11
Sustainability6668-2

Better than 5% of core-js sites

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core-js

Based on 1488 real audits

36
Avg. Performance
88
Avg. Accessibility
83
Avg. Best Practices
91
Avg. SEO
64
Avg. Security
72
Avg. Composite
36 /100
Avg. Performance
359 ms
Avg. TTFB
72 /100
Avg. Composite
1488
Sites Audited

How core-js sites compare

core-js sites tend to score below average on performance (36/100), compared to the global average of 46/100.

Recent Audits

SitePerformanceGradeAudited
uned.es49C2026-04-23
dzwww.com48D2026-04-23
dergipark.org.tr51D2026-04-23
nbcmiami.com26C2026-04-23
ohsu.edu42C2026-04-23
nea.org48C2026-04-23
washingtonian.com30C2026-04-22
doctissimo.fr50C2026-04-22
uhc.com26C2026-04-22
italia.it42D2026-04-22

Commonly Used With

Sites that use core-js also commonly use:

Open Graph Miscellaneous 1269Google Search Console Analytics 1176Google Tag Manager Tag managers 1126Google Analytics Analytics 881Microsoft Analytics 825jQuery JavaScript libraries 744HSTS Security 684Priority Hints Performance 655Facebook SDK Analytics 529Facebook Analytics 529

Compare with...

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

FAQ

What is the average Lighthouse performance score for core-js sites?
Based on 1488 real audits, core-js sites score an average of 36/100 on Lighthouse performance.
How does core-js compare on web security?
core-js sites score an average security grade of 64/100 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 359ms based on 1488 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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