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core-js vs Gladly

Based on 1841 and 13 real audits

View core-js details | View Gladly details
Metriccore-jsGladlyWinner
Performance3724core-js
Accessibility8889Gladly
Best Practices8577core-js
SEO9190core-js
Security6767Tie
TTFB439ms152msGladly
Composite7472core-js
Performance
core-js
37
Gladly
24
Accessibility
core-js
88
Gladly
89
Security
core-js
67
Gladly
67
SEO
core-js
91
Gladly
90
Composite
core-js
74
Gladly
72

core-js outperforms Gladly in 4 of 7 categories, with a stronger composite score (74 vs 72). Gladly leads in accessibility, TTFB.

When to choose core-js

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

When to choose Gladly

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

How this comparison was built

Scores are medians across 1841 audited core-js sites and 13 audited Gladly 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, core-js or Gladly?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (37 vs 24 on average).
Which has better security, core-js or Gladly?
core-js sites score higher on security analysis (67 vs 67 on average).
Which has better accessibility, core-js or Gladly?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Gladly (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, core-js or Gladly?
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), core-js or Gladly?
Gladly sites show lower Time to First Byte (152 ms vs 439 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 core-js or Gladly for my website?
Both platforms have trade-offs. core-js scores higher on overall composite score while core-js 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.
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