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core-js vs Microsoft Application Insights

Based on 1650 and 18 real audits

View core-js details | View Microsoft Application Insights details
Metriccore-jsMicrosoft Application InsightsWinner
Performance3636Tie
Accessibility8888Tie
Best Practices8478core-js
SEO9188core-js
Security6665core-js
TTFB387ms454mscore-js
Composite7373Tie
Performance
core-js
36
Microsoft Application Insights
36
Accessibility
core-js
88
Microsoft Application Insights
88
Security
core-js
66
Microsoft Application Insights
65
SEO
core-js
91
Microsoft Application Insights
88
Composite
core-js
73
Microsoft Application Insights
73

core-js outperforms Microsoft Application Insights in 4 of 7 categories, with a stronger composite score (73 vs 73). Microsoft Application Insights leads in no categories.

When to choose core-js

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

When to choose Microsoft Application Insights

Microsoft Application Insights doesn't clearly lead core-js in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.

How this comparison was built

Scores are medians across 1650 audited core-js sites and 18 audited Microsoft Application Insights 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 Microsoft Application Insights?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 36 on average).
Which has better security, core-js or Microsoft Application Insights?
core-js sites score higher on security analysis (66 vs 65 on average).
Which has better accessibility, core-js or Microsoft Application Insights?
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 Microsoft Application Insights?
core-js sites score higher on Lighthouse SEO signals (91 vs 88 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 Microsoft Application Insights?
core-js sites show lower Time to First Byte (387 ms vs 454 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 Microsoft Application Insights 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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