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Your site vs. core-js average

Your site
79
core-js average
72
CategoryYour scorePeer avgDeltaPercentile
Performance9072+18—
Security7865+13—
Accessibility7659+17—
SEO7790-13—
Infrastructure8286-4—
Compliance6378-15—
Content6883-15—
Sustainability7668+8—

Better than 94% of core-js sites

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Category: JavaScript libraries

core-js

Based on 1555 real audits

36
Avg. Performance
88
Avg. Accessibility
84
Avg. Best Practices
91
Avg. SEO
65
Avg. Security
72
Avg. Composite
36 /100
Avg. Performance
370 ms
Avg. TTFB
72 /100
Avg. Composite
1555
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 47/100.

Recent Audits

See all 1468 websites using core-js →
SitePerformanceGradeAudited
enjoycbd.es34C2026-05-13
threatmodeler.com48B2026-05-11
www.activatedigital.co.uk59B2026-05-11
www.gesundheitswelt.de63B2026-05-11
LorientHaus.com43B2026-05-11
BeyondCarat.com27C2026-05-11
etxpsych.com55B2026-05-10
Nurevealed.com55B2026-05-10
Mainstreetestatesales.com54B2026-05-10
chilisjobs.com24B2026-05-10

Commonly Used With

Sites that use core-js also commonly use:

Open Graph Miscellaneous 1327Google Search Console Analytics 1209Google Tag Manager Tag managers 1166Google Analytics Analytics 911Microsoft Analytics 847jQuery JavaScript libraries 766HSTS Security 730Priority Hints Performance 697Google Workspace Email 543Facebook Analytics 542

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 Google Workspacecore-js vs Facebook

FAQ

What is the average Lighthouse performance score for core-js sites?
Based on 1555 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 65/100 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 370ms based on 1555 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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