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core-js vs DoubleClick Floodlight

Based on 1570 and 594 real audits

View core-js details | View DoubleClick Floodlight details
Metriccore-jsDoubleClick FloodlightWinner
Performance3632core-js
Accessibility8887core-js
Best Practices8481core-js
SEO9191Tie
Security6564core-js
TTFB371ms340msDoubleClick Floodlight
Composite7272Tie
Performance
core-js
36
DoubleClick Floodlight
32
Accessibility
core-js
88
DoubleClick Floodlight
87
Security
core-js
65
DoubleClick Floodlight
64
SEO
core-js
91
DoubleClick Floodlight
91
Composite
core-js
72
DoubleClick Floodlight
72

core-js outperforms DoubleClick Floodlight in 4 of 7 categories, with a stronger composite score (72 vs 72). DoubleClick Floodlight leads in 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 DoubleClick Floodlight

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

How this comparison was built

Scores are medians across 1570 audited core-js sites and 594 audited DoubleClick Floodlight 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 DoubleClick Floodlight?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 32 on average).
Which has better security, core-js or DoubleClick Floodlight?
core-js sites score higher on security analysis (65 vs 64 on average).
Which has better accessibility, core-js or DoubleClick Floodlight?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 87). 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 DoubleClick Floodlight?
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 DoubleClick Floodlight?
DoubleClick Floodlight sites show lower Time to First Byte (340 ms vs 371 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 DoubleClick Floodlight 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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