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core-js vs SWFObject

Based on 1582 and 10 real audits

View core-js details | View SWFObject details
Metriccore-jsSWFObjectWinner
Performance3640SWFObject
Accessibility8872core-js
Best Practices8479core-js
SEO9188core-js
Security6560core-js
TTFB374ms508mscore-js
Composite7269core-js
Performance
core-js
36
SWFObject
40
Accessibility
core-js
88
SWFObject
72
Security
core-js
65
SWFObject
60
SEO
core-js
91
SWFObject
88
Composite
core-js
72
SWFObject
69

core-js outperforms SWFObject in 6 of 7 categories, with a stronger composite score (72 vs 69). SWFObject leads in performance.

When to choose core-js

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

When to choose SWFObject

Choose SWFObject when your primary concern is performance. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1582 audited core-js sites and 10 audited SWFObject 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 SWFObject?
Based on real BeaverCheck audits, SWFObject sites score higher on Lighthouse performance (40 vs 36 on average).
Which has better security, core-js or SWFObject?
core-js sites score higher on security analysis (65 vs 60 on average).
Which has better accessibility, core-js or SWFObject?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor core-js (88 vs 72). 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 SWFObject?
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 SWFObject?
core-js sites show lower Time to First Byte (374 ms vs 508 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 SWFObject for my website?
Both platforms have trade-offs. SWFObject 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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