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Cloudflare vs Mimecast

Based on 2890 and 148 real audits

View Cloudflare details | View Mimecast details
MetricCloudflareMimecastWinner
Performance5238Cloudflare
Accessibility8889Mimecast
Best Practices8787Tie
SEO9086Cloudflare
Security7266Cloudflare
TTFB353ms263msMimecast
Composite7773Cloudflare
Performance
Cloudflare
52
Mimecast
38
Accessibility
Cloudflare
88
Mimecast
89
Security
Cloudflare
72
Mimecast
66
SEO
Cloudflare
90
Mimecast
86
Composite
Cloudflare
77
Mimecast
73

Cloudflare outperforms Mimecast in 4 of 7 categories, with a stronger composite score (77 vs 73). Mimecast leads in accessibility, TTFB.

When to choose Cloudflare

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

When to choose Mimecast

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

How this comparison was built

Scores are medians across 2890 audited Cloudflare sites and 148 audited Mimecast 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, Cloudflare or Mimecast?
Based on real BeaverCheck audits, Cloudflare sites score higher on Lighthouse performance (52 vs 38 on average).
Which has better security, Cloudflare or Mimecast?
Cloudflare sites score higher on security analysis (72 vs 66 on average).
Which has better accessibility, Cloudflare or Mimecast?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Mimecast (89 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, Cloudflare or Mimecast?
Cloudflare sites score higher on Lighthouse SEO signals (90 vs 86 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), Cloudflare or Mimecast?
Mimecast sites show lower Time to First Byte (263 ms vs 353 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 Cloudflare or Mimecast for my website?
Both platforms have trade-offs. Cloudflare scores higher on overall composite score while Cloudflare 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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