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DNS Lookup

ahajournals.org

ahajournals.org 162 ms

A Records (IPv4)

172.64.150.155

104.18.37.101

NS Records (Nameservers)

ns2.heart.org

ns3.heart.org

ns1.heart.org

TXT Records

v=spf1 ip4:65.156.0.0/23 include:ahajournals.ip02.org -all

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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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