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DNS Lookup

spec.org

spec.org 184 ms

A Records (IPv4)

38.146.202.4

MX Records (Mail)

10 pro.spec.org

NS Records (Nameservers)

ns2.headgear.org

spec.cs.miami.edu

ns1.headgear.org

pro.spec.org

TXT Records

v=spf1 ip4:38.146.202.0/26 include:_spf.google.com -all

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Other reports for spec.org

Security Headers

CSP, HSTS, X-Frame-Options grade for this site

SSL Certificate Checker

Inspect certificate validity, expiry, cipher suite, and chain — supports SNI.

Redirect Checker

Trace the full HTTP redirect chain, flag loops, and surface mixed-content downgrades.

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