itknowledgebase.cn - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

itknowledgebase.cn

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:d27c🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:1059🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.16.89Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.124🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbart.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b47🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbart.ns.cloudflare.com
A2803:f800:50::6ca2:c147🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbart.ns.cloudflare.com
A2a06:98c1:50::ac40:2147🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbart.ns.cloudflare.com
A108.162.193.71🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbart.ns.cloudflare.com
A172.64.33.71🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbart.ns.cloudflare.com
A173.245.59.71🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbart.ns.cloudflare.com
NShera.ns.cloudflare.com
A2606:4700:50::adf5:3aa2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A2803:f800:50::6ca2:c0a2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhera.ns.cloudflare.com
A2a06:98c1:50::ac40:20a2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhera.ns.cloudflare.com
A108.162.192.162🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A172.64.32.162🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A173.245.58.162🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.16.89, 172.67.210.124
IPv6 hints2606:4700:3031::ac43:d27c, 2606:4700:3032::6815:1059
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=66, name=cloudflare-ech.com
SOAbart.ns.cloudflare.comdns@cloudflare.com serial=2412018797

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035187223
WOT: UNKNOWN (70/100)

Same first word

itknowledgebase.cn

DNS History

17 records (6 active, 11 former)

20162017201820192020202120222023202420252026NSbart.ns.cloudflare.comhera.ns.cloudflare.comdns1.idp365.netdns2.idp365.netdns3.idp365.netA104.21.16.89172.67.210.1242606:4700:3031::ac43:d27c2606:4700:3032::6815:1059188.114.96.0188.114.97.0208.254.74.77217.19.248.1322606:4700:3032::ac43:d27c2606:4700:3036::6815:10592a06:98c1:3120::2a06:98c1:3121::
●NSbart.ns.cloudflare.com2026-02-15 → 2026-08-16 · 3 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-08-16 13:53:24
○NSdns1.idp365.net2015-08-06 → 2017-07-04 · 4 obs
● 2015-08-06 20:22:10
● 2017-07-04 12:26:08
○ 2026-02-15 02:41:08
○ 2026-08-16 13:53:24
○NSdns2.idp365.net2015-08-06 → 2017-07-04 · 4 obs
● 2015-08-06 20:22:10
● 2017-07-04 12:26:08
○ 2026-02-15 02:41:08
○ 2026-08-16 13:53:24
○NSdns3.idp365.net2015-08-06 → 2017-07-04 · 4 obs
● 2015-08-06 20:22:10
● 2017-07-04 12:26:08
○ 2026-02-15 02:41:08
○ 2026-08-16 13:53:24
●NShera.ns.cloudflare.com2026-02-15 → 2026-08-16 · 3 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-08-16 13:53:24
●A104.21.16.892026-02-15 → 2026-08-16 · 9 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-02-18 05:23:16
○ 2026-02-23 17:48:46
● 2026-03-27 22:52:42
● 2026-04-03 21:48:38
○ 2026-04-09 10:17:56
● 2026-05-01 09:46:58
● 2026-08-16 13:53:24
●A172.67.210.1242026-02-15 → 2026-08-16 · 9 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-02-18 05:23:16
○ 2026-02-23 17:48:46
● 2026-03-27 22:52:42
● 2026-04-03 21:48:38
○ 2026-04-09 10:17:56
● 2026-05-01 09:46:58
● 2026-08-16 13:53:24
○A188.114.96.02026-02-23 → 2026-04-09 · 7 obs
○ 2026-02-18 05:23:16
● 2026-02-23 17:48:46
○ 2026-03-27 22:52:42
○ 2026-04-03 21:48:38
● 2026-04-09 10:17:56
○ 2026-05-01 09:46:58
○ 2026-08-16 13:53:24
○A188.114.97.02026-02-23 → 2026-04-09 · 7 obs
○ 2026-02-18 05:23:16
● 2026-02-23 17:48:46
○ 2026-03-27 22:52:42
○ 2026-04-03 21:48:38
● 2026-04-09 10:17:56
○ 2026-05-01 09:46:58
○ 2026-08-16 13:53:24
○A208.254.74.772015-08-06 → 2015-12-01 · 4 obs
● 2015-08-06 20:22:10
● 2015-12-01 08:48:46
○ 2016-03-10 13:43:38
○ 2026-08-16 13:53:24
○A217.19.248.1322016-03-10 → 2017-07-04 · 5 obs
○ 2015-12-01 08:48:46
● 2016-03-10 13:43:38
● 2017-07-04 12:26:08
○ 2026-02-15 02:41:08
○ 2026-08-16 13:53:24
●A2606:4700:3031::ac43:d27c2026-07-04 → 2026-08-16 · 3 obs
○ 2026-06-17 02:38:28
● 2026-07-04 04:11:42
● 2026-08-16 13:53:24
●A2606:4700:3032::6815:10592026-07-04 → 2026-08-16 · 3 obs
○ 2026-06-17 02:38:28
● 2026-07-04 04:11:42
● 2026-08-16 13:53:24
○A2606:4700:3032::ac43:d27c2026-02-15 → 2026-06-17 · 11 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-02-18 05:23:16
○ 2026-02-23 17:48:46
● 2026-03-27 22:52:42
● 2026-04-03 21:48:38
○ 2026-04-09 10:17:56
● 2026-05-01 09:46:58
● 2026-06-17 02:38:28
○ 2026-07-04 04:11:42
○ 2026-08-16 13:53:24
○A2606:4700:3036::6815:10592026-02-15 → 2026-06-17 · 11 obs
○ 2017-07-04 12:26:08
● 2026-02-15 02:41:08
● 2026-02-18 05:23:16
○ 2026-02-23 17:48:46
● 2026-03-27 22:52:42
● 2026-04-03 21:48:38
○ 2026-04-09 10:17:56
● 2026-05-01 09:46:58
● 2026-06-17 02:38:28
○ 2026-07-04 04:11:42
○ 2026-08-16 13:53:24
○A2a06:98c1:3120::2026-02-23 → 2026-04-09 · 7 obs
○ 2026-02-18 05:23:16
● 2026-02-23 17:48:46
○ 2026-03-27 22:52:42
○ 2026-04-03 21:48:38
● 2026-04-09 10:17:56
○ 2026-05-01 09:46:58
○ 2026-08-16 13:53:24
○A2a06:98c1:3121::2026-02-23 → 2026-04-09 · 7 obs
○ 2026-02-18 05:23:16
● 2026-02-23 17:48:46
○ 2026-03-27 22:52:42
○ 2026-04-03 21:48:38
● 2026-04-09 10:17:56
○ 2026-05-01 09:46:58
○ 2026-08-16 13:53:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnb.dns.cn, d.dns.cn, e.dns.cn, c.dns.cn...-
itknowledgebase.cnbart.ns.cloudflare.com, hera.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.71

NS records: bart.ns.cloudflare.com, hera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for itknowledgebase.cn (unsigned zone)

⏱️ Timing

Total: 338ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.16.89, 172.67.210.124
AAAA22606:4700:3031::ac43:d27c, 2606:4700:3032::6815:1059
NS2bart.ns.cloudflare.com, hera.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bart.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

itknowledgebase.cn points to the four IP addresses 104.21.16.89, 172.67.210.124, 2606:4700:3031::ac43:d27c and 2606:4700:3032::6815:1059.

Two other host names, along with 6686qw.com, server1.urgclub.com and 3iholdings.com, also share IP numbers with itknowledgebase.cn.

Name Servers

itknowledgebase.cn uses two name servers for its delegation: bart.ns.cloudflare.com and hera.ns.cloudflare.com.

itknowledgebase.cn shares its NS records with other domains, for example hdpuv.com, 24-7partnering.com, expert-opin.com and two others.

At least some of itknowledgebase.cn's name servers are shared with other domains, for example amazingflips.com, zamru.ru, annmarieskitchen.com and two more.

It is common for these name servers to be used in conjunction with the name servers magdalena.ns.cloudflare.com, maria.ns.cloudflare.com and carter.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname bart.ns.cloudflare.com directs to 108.162.193.71, 172.64.33.71 and 173.245.59.71 along with 3 other IP addresses.

Hostname hera.ns.cloudflare.com directs to 108.162.192.162, 172.64.32.162 and 173.245.58.162 along with 3 other IP addresses.