Audit: twitter.com

Audited on 3 Sep 2026

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72
overall score
On-page SEO
0
Crawlability
67
TLS & security
100
Network
83
Email
100
DNS
83

The site is up · responded in 117 ms

  • Reachable 0% of the last 24 hours
  • Last time we couldn't reach it: 3d ago
  • Outages cost you traffic and rankings while they last, and they rarely happen while you are watching.
Live status: X (Twitter) → Email me if it goes down →

On-page SEO

0/100
  • ? Page indexing The page was not fetched
  • ? On-page markup The page was not fetched

Crawlability

67/100
  • ✓ robots.txt present + valid Parsed cleanly · 1 sitemap(s) declared
  • ✗ Sitemap.xml is valid XML Present but does not parse — Specification mandates value for attribute crossorigin

TLS & security

100/100
  • ✓ TLS handshake succeeds
  • ✓ Certificate not expiring soon 52 days left

Network

83/100
  • ✓ Hostname resolves to an A record 162.159.140.229
  • ! Server header does not leak version

Email

100/100
  • ✓ MX records valid + reachable
  • ✓ SPF record present v=spf1 ip4:199.16.156.0/22 ip4:199.59.148.0/22 ip4:8.25.194.0/23 ip4:8.25.196.0/23 ip4:204.92.114.203 ip4:204.92.114.204/31 include:_spf.google.com include:_thirdparty.twitter.com -all
  • ✓ DMARC record present
  • ✓ DMARC policy enforced p=reject
  • ✓ DKIM key published selector=google, ~1296-bit

DNS

83/100
  • ✓ A records resolve
  • ✓ NS records present
  • ✓ MX records present
  • ✗ DNS resolvers agree on the same A record 73% of 12 resolvers agree
  • ✓ Domain registration not expiring soon 122 days left
  • ✓ Domain is established 26y 7m 11d (2000-01-21)

What changed

Nothing has changed on twitter.com since we started watching it.

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

523 via Certificate Transparency · 500+ truncated

We found 523 subdomains for twitter.com via Certificate Transparency logs.

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Tech stack detected

2 technologies · Pro: track changes over time →

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

CDN

  • Cloudflare

Server

  • Header value cloudflare envoy

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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