Website

Answer
521in 1,479 ms
Title
cnisp.org.cn | 521: Web server is down
Server
cloudflare
Protocols
HTTP/2, HTTP/3
Certificate
Google Trust Services (WE1) for cnisp.org.cn and *.cnisp.org.cn, valid until
www
Answers itself (521)

DNS records

cnisp.org.cn

A
TTL 5 min
AAAA
TTL 5 min
NS
TTL 1 day
SOA
TTL 30 min
CAA
None: any certificate authority may issue for this name

www.cnisp.org.cn

A
TTL 5 min
AAAA
TTL 5 min

As gemma.ns.cloudflare.com answers them

Reputation

Domain blocklists

  • Spamhaus DBL Not listed
  • SURBL Not listed
  • URIBL Not listed

Rankings

Not ranked Tranco rank
0.27Open PageRank, out of 10
26,513,254Open PageRank position
1Referring domains

From Tranco and Open PageRank

WHOIS

Domain Name: cnisp.org.cn
ROID: 20260201s10051s03072841-cn
Domain Status: clientTransferProhibited
Registrant: 鲜雨科
Registrant Contact Email: yybbr666@outlook.com
Sponsoring Registrar: 北京中万网络科技有限责任公司
Name Server: gemma.ns.cloudflare.com
Name Server: rodney.ns.cloudflare.com
Registration Time: 2026-02-01 04:02:32
Expiration Time: 2027-02-01 04:02:32
DNSSEC: unsigned

DNSSEC

cnisp.org.cn is not signed.

. Verified

  • Found 3 DNSKEY records for .
  • DS=20326/SHA-256 verifies DNSKEY=20326/SEP
  • DS=38696/SHA-256 verifies DNSKEY=38696/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset

cn Verified

  • Found 1 DS records for cn in the . zone
  • DS=33094/SHA-256 has algorithm RSASHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
  • Found 2 DNSKEY records for cn
  • DS=33094/SHA-256 verifies DNSKEY=33094/SEP
  • Found 2 RRSIGs over DNSKEY RRset
  • RRSIG=27768 over the DNSKEY RRset was made with a key that is not trusted here
  • RRSIG=33094 and DNSKEY=33094/SEP verifies the DNSKEY RRset

org.cn Verified

  • Found 1 DS records for org.cn in the cn zone
  • DS=45007/SHA-256 has algorithm RSASHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=27768 and DNSKEY=27768 verifies the DS RRset
  • Found 2 DNSKEY records for org.cn
  • DS=45007/SHA-256 verifies DNSKEY=45007/SEP
  • Found 2 RRSIGs over DNSKEY RRset
  • RRSIG=45007 and DNSKEY=45007/SEP verifies the DNSKEY RRset
  • RRSIG=64704 over the DNSKEY RRset was made with a key that is not trusted here

cnisp.org.cn Not signed

  • No DS records found for cnisp.org.cn in the org.cn zone