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Cloudflare vs Mimecast

Based on 2102 and 145 real audits

View Cloudflare details | View Mimecast details
MetricCloudflareMimecastWinner
Performance4938Cloudflare
Accessibility8890Mimecast
Best Practices8687Mimecast
SEO8986Cloudflare
Security6866Cloudflare
TTFB296ms255msMimecast
Composite7473Cloudflare
Performance
Cloudflare
49
Mimecast
38
Accessibility
Cloudflare
88
Mimecast
90
Security
Cloudflare
68
Mimecast
66
SEO
Cloudflare
89
Mimecast
86
Composite
Cloudflare
74
Mimecast
73

Cloudflare outperforms Mimecast in 4 of 7 categories, with a stronger composite score (74 vs 73). Mimecast leads in accessibility, best practices, TTFB.

When to choose Cloudflare

Choose Cloudflare when your primary concern is performance and SEO. 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 2102 audited Cloudflare sites and 145 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 (49 vs 38 on average).
Which has better security, Cloudflare or Mimecast?
Cloudflare sites score higher on security analysis (68 vs 66 on average).
Which has better accessibility, Cloudflare or Mimecast?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Mimecast (90 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 (89 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 (255 ms vs 296 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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