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Concrete CMS vs Fastly

Based on 2 and 383 real audits

MetricConcrete CMSFastlyWinner
Performance4745Concrete CMS
Accessibility8891Fastly
Best Practices9689Concrete CMS
SEO8492Fastly
Security7266Concrete CMS
TTFB376ms149msFastly
Composite7374Fastly
Performance
Concrete CMS
47
Fastly
45
Accessibility
Concrete CMS
88
Fastly
91
Security
Concrete CMS
72
Fastly
66
SEO
Concrete CMS
84
Fastly
92
Composite
Concrete CMS
73
Fastly
74

Fastly outperforms Concrete CMS in 4 of 7 categories, with a stronger composite score (74 vs 73). Concrete CMS leads in performance, best practices, security.

When to choose Concrete CMS

Choose Concrete CMS when your primary concern is best practices and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Fastly

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

How this comparison was built

Scores are medians across 2 audited Concrete CMS sites and 383 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 →

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, Concrete CMS or Fastly?
Based on real BeaverCheck audits, Concrete CMS sites score higher on Lighthouse performance (47 vs 45 on average).
Which has better security, Concrete CMS or Fastly?
Concrete CMS sites score higher on security analysis (72 vs 66 on average).
Which has better accessibility, Concrete CMS or Fastly?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Fastly (91 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, Concrete CMS or Fastly?
Fastly sites score higher on Lighthouse SEO signals (92 vs 84 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), Concrete CMS or Fastly?
Fastly sites show lower Time to First Byte (149 ms vs 376 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 Concrete CMS or Fastly for my website?
Both platforms have trade-offs. Concrete CMS scores higher on overall composite score while Concrete CMS 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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