Audit: cloudflare.com

Audited on 11 Sep 2026

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92
overall score
On-page SEO
67
Crawlability
100
TLS & security
100
Network
83
Email
100
DNS
100

The site is up · responded in 182 ms

  • Reachable 1% of the last 24 hours
  • Outages cost you traffic and rankings while they last, and they rarely happen while you are watching.
Live status: Cloudflare → Email me if it goes down →

On-page SEO

67/100
  • ✓ Page allows indexing
  • ✓ Title, description, H1 and canonical 6/9 on-page checks pass

What the page carries

Read from www.cloudflare.com's homepage in the same request as the checks above. Link counts are for this page only — site-wide depth and orphan pages need a crawl.

Title Cloudflare: Build for the agent era 35 chars
Structured data Organization, WebSite, WebPage
Images without alt 1 of 66
Links on this page 44 internal · 2 external
Key pages one click away about

Crawlability

100/100
  • ✓ robots.txt present + valid Parsed cleanly · 1 sitemap(s) declared
  • ✓ Sitemap.xml lists URLs 897 URL(s) · newest 2026-09-11

TLS & security

100/100
  • ✓ TLS handshake succeeds
  • ✓ Certificate not expiring soon 72 days left

Network

83/100
  • ✓ Hostname resolves to an A record 104.16.133.229
  • ! Server header does not leak version

Email

100/100
  • ✓ MX records valid + reachable
  • ✓ SPF record present v=spf1 ip4:199.15.212.0/22 ip4:173.245.48.0/20 include:_spf.google.com include:spf1.mcsv.net include:spf.mandrillapp.com include:mail.zendesk.com include:stspg-customer.com include:_spf.salesforce.com -all
  • ✓ DMARC record present
  • ✓ DMARC policy enforced p=reject
  • ✓ DKIM key published selector=k1, ~1296-bit

DNS

100/100
  • ✓ A records resolve
  • ✓ NS records present
  • ✓ MX records present
  • ✓ DNS resolvers agree on the same A record 100% of 12 resolvers agree
  • ✓ Domain registration not expiring soon 2341 days left
  • ✓ Domain is established 17y 6m 14d (2009-02-17)

What changed

8 things changed on cloudflare.com in the last 30 days.

Certificates expire, DNS gets edited, a header goes missing in a deploy. Prove the domain is yours and we watch it on a schedule — free — and email you the moment something moves, so you hear it from us instead of from a customer.

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Subdomains discovered 🔒 Pro

3424 via Certificate Transparency · 500+ truncated

We found 3424 subdomains for cloudflare.com via Certificate Transparency logs.

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  • See every subdomain discovered via crt.sh CT logs
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  • Useful for security recon + asset inventory
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Tech stack detected

4 technologies · Pro: track changes over time →

Signature-based identification from the public homepage. Pattern set is fixed; nothing is sent to third parties.

Framework

  • Astro

Analytics

  • Google Analytics

CDN

  • Cloudflare

Server

  • Header value cloudflare

A certificate that expires on Tuesday should not wait until Friday. Prove a domain is yours and we check it free, once a week, emailing you anything that changed. Pro checks it once a day, looks at every host on the domain, and keeps 365 days of history — so you hear about a problem in hours rather than days.

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