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DNS Lookup

t.cn

t.cn 1425 ms

A Records (IPv4)

123.56.139.83

AAAA Records (IPv6)

2408:4000:200::3b4

MX Records (Mail)

10 mx.sina.net

NS Records (Nameservers)

ns2.sina.com.cn

ns1.sina.com.cn

ns3.sina.com.cn

ns4.sina.com.cn

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Other reports for t.cn

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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