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core-js vs Marketo

Based on 1637 and 62 real audits

View core-js details | View Marketo details
Metriccore-jsMarketoWinner
Performance3629core-js
Accessibility8889Marketo
Best Practices8479core-js
SEO9191Tie
Security6566Marketo
TTFB385ms370msMarketo
Composite7372core-js
Performance
core-js
36
Marketo
29
Accessibility
core-js
88
Marketo
89
Security
core-js
65
Marketo
66
SEO
core-js
91
Marketo
91
Composite
core-js
73
Marketo
72

core-js and Marketo are closely matched, each leading in different categories. core-js has a composite score of 73 while Marketo scores 72.

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 Marketo

Choose Marketo 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 1637 audited core-js sites and 62 audited Marketo 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 Marketo?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 29 on average).
Which has better security, core-js or Marketo?
Marketo sites score higher on security analysis (66 vs 65 on average).
Which has better accessibility, core-js or Marketo?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Marketo (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 Marketo?
core-js sites score higher on Lighthouse SEO signals (91 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 Marketo?
Marketo sites show lower Time to First Byte (370 ms vs 385 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 Marketo 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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