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DNS Lookup

pku.edu.cn

pku.edu.cn 260 ms

A Records (IPv4)

162.105.131.160

MX Records (Mail)

5 mx-pku-edu-cn.icoremail.net

10 gateway.pku.edu.cn

NS Records (Nameservers)

DNS3.pku.edu.cn

ns.pku.edu.cn

DNS1.pku.edu.cn

DNS2.pku.edu.cn

TXT Records

_hzos8v1tcdrxo5uk1i5qyl7pnu7w15x

v=spf1 ip4:162.105.129.0/24 include:spf.icoremail.net -all

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Other reports for pku.edu.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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