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core-js vs Integral Ad Science

Based on 1650 and 34 real audits

View core-js details | View Integral Ad Science details
Metriccore-jsIntegral Ad ScienceWinner
Performance3635core-js
Accessibility8888Tie
Best Practices8483core-js
SEO9193Integral Ad Science
Security6665core-js
TTFB387ms274msIntegral Ad Science
Composite7372core-js
Performance
core-js
36
Integral Ad Science
35
Accessibility
core-js
88
Integral Ad Science
88
Security
core-js
66
Integral Ad Science
65
SEO
core-js
91
Integral Ad Science
93
Composite
core-js
73
Integral Ad Science
72

core-js outperforms Integral Ad Science in 4 of 7 categories, with a stronger composite score (73 vs 72). Integral Ad Science leads in SEO, 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 Integral Ad Science

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

How this comparison was built

Scores are medians across 1650 audited core-js sites and 34 audited Integral Ad Science 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 Integral Ad Science?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 35 on average).
Which has better security, core-js or Integral Ad Science?
core-js sites score higher on security analysis (66 vs 65 on average).
Which has better accessibility, core-js or Integral Ad Science?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 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 Integral Ad Science?
Integral Ad Science sites score higher on Lighthouse SEO signals (93 vs 91 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 Integral Ad Science?
Integral Ad Science sites show lower Time to First Byte (274 ms vs 387 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 Integral Ad Science 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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