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ExtJS vs Socket.io

Based on 2 and 7 real audits

View ExtJS details | View Socket.io details
MetricExtJSSocket.ioWinner
Performance4243Socket.io
Accessibility6982Socket.io
Best Practices8687Socket.io
SEO9591ExtJS
Security7265ExtJS
TTFB103ms229msExtJS
Composite7773ExtJS
Performance
ExtJS
42
Socket.io
43
Accessibility
ExtJS
69
Socket.io
82
Security
ExtJS
72
Socket.io
65
SEO
ExtJS
95
Socket.io
91
Composite
ExtJS
77
Socket.io
73

ExtJS outperforms Socket.io in 4 of 7 categories, with a stronger composite score (77 vs 73). Socket.io leads in performance, accessibility, best practices.

When to choose ExtJS

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

When to choose Socket.io

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

How this comparison was built

Scores are medians across 2 audited ExtJS sites and 7 audited Socket.io 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 →

Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.

FAQ

Which is faster, ExtJS or Socket.io?
Based on real BeaverCheck audits, Socket.io sites score higher on Lighthouse performance (43 vs 42 on average).
Which has better security, ExtJS or Socket.io?
ExtJS sites score higher on security analysis (72 vs 65 on average).
Which has better accessibility, ExtJS or Socket.io?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Socket.io (82 vs 69). 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, ExtJS or Socket.io?
ExtJS sites score higher on Lighthouse SEO signals (95 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), ExtJS or Socket.io?
ExtJS sites show lower Time to First Byte (103 ms vs 229 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 ExtJS or Socket.io for my website?
Both platforms have trade-offs. Socket.io scores higher on overall composite score while ExtJS 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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