Skip to content

Cloudflare vs core-js

Based on 3200 and 2041 real audits

View Cloudflare details | View core-js details
MetricCloudflarecore-jsWinner
Performance5437Cloudflare
Accessibility8988Cloudflare
Best Practices8886Cloudflare
SEO9091core-js
Security7368Cloudflare
TTFB371ms483msCloudflare
Composite7874Cloudflare
Performance
Cloudflare
54
core-js
37
Accessibility
Cloudflare
89
core-js
88
Security
Cloudflare
73
core-js
68
SEO
Cloudflare
90
core-js
91
Composite
Cloudflare
78
core-js
74

Cloudflare outperforms core-js in 6 of 7 categories, with a stronger composite score (78 vs 74). core-js leads in SEO.

When to choose Cloudflare

Choose Cloudflare when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose core-js

Choose core-js when your primary concern is SEO. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 3200 audited Cloudflare sites and 2041 audited core-js sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →

FAQ

Which is faster, Cloudflare or core-js?
Based on real BeaverCheck audits, Cloudflare sites score higher on Lighthouse performance (54 vs 37 on average).
Which has better security, Cloudflare or core-js?
Cloudflare sites score higher on security analysis (73 vs 68 on average).
Which has better accessibility, Cloudflare or core-js?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Cloudflare (89 vs 88). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, Cloudflare or core-js?
core-js sites score higher on Lighthouse SEO signals (91 vs 90 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), Cloudflare or core-js?
Cloudflare sites show lower Time to First Byte (371 ms vs 483 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose Cloudflare or core-js for my website?
Both platforms have trade-offs. Cloudflare scores higher on overall composite score while Cloudflare may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
Audit your own site

Send Feedback