Lookup domain:

  IPv4 IPv6
Web services (record for www.<domain>)
www.sibcb.ac.cn
yes
Alternative record for web over IPv6
Mail services (MX record) yes yes
Support for SPF (Sender Policy Framework) no
DNS services (NS record) yes (since 2014-07-06)
Support for DNSSEC (DS record) no
Inserted into database 2011-12-16 00:05:21+00
Last update 2016-06-13 03:04:29+00

 

History for sibcb.ac.cn

web altweb mx spf ns dnssec
first check v4only dual v4only
2014-07-06 v4only dual dual
2014-07-08 v4only dual dual
2014-07-08 v4only dual dual
2014-07-09 v4only dual dual
2014-08-07 v4only dual v4only
2014-08-08 v4only dual v4only
2014-08-10 v4only dual v4only
2014-08-12 v4only dual v4only
2014-08-26 v4only dual dual
2014-09-09 v4only dual dual
2014-09-10 v4only dual dual
2014-09-15 v4only dual dual
2014-09-21 v4only dual v4only
2014-09-26 v4only dual v4only
2014-10-02 v4only dual dual
2014-10-11 v4only dual v4only
2014-10-25 v4only dual dual
2014-10-29 v4only dual dual
2014-11-12 v4only dual v4only
2014-11-13 v4only dual v4only
2014-11-15 v4only dual v4only
2014-11-20 v4only dual v4only
2014-11-21 v4only dual v4only
2015-03-30 v4only dual dual
2015-04-02 v4only dual dual
2016-06-13 v4only dual v6only
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