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Concert vs Fastly

Based on 11 and 380 real audits

View Concert details | View Fastly details
MetricConcertFastlyWinner
Performance3246Fastly
Accessibility9391Concert
Best Practices9589Concert
SEO9492Concert
Security6666Tie
TTFB62ms148msConcert
Composite7474Tie
Performance
Concert
32
Fastly
46
Accessibility
Concert
93
Fastly
91
Security
Concert
66
Fastly
66
SEO
Concert
94
Fastly
92
Composite
Concert
74
Fastly
74

Concert outperforms Fastly in 4 of 7 categories, with a stronger composite score (74 vs 74). Fastly leads in performance.

When to choose Concert

Choose Concert 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 Fastly

Choose Fastly 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 11 audited Concert sites and 380 audited Fastly 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, Concert or Fastly?
Based on real BeaverCheck audits, Fastly sites score higher on Lighthouse performance (46 vs 32 on average).
Which has better security, Concert or Fastly?
Concert sites score higher on security analysis (66 vs 66 on average).
Which has better accessibility, Concert or Fastly?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Concert (93 vs 91). 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, Concert or Fastly?
Concert sites score higher on Lighthouse SEO signals (94 vs 92 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), Concert or Fastly?
Concert sites show lower Time to First Byte (62 ms vs 148 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 Concert or Fastly for my website?
Both platforms have trade-offs. Fastly scores higher on overall composite score while Concert 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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