51-code.cn - dns.ninja

51-code.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:b07e🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:1f77🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.31.119Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.176.126🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgraham.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bab🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgraham.ns.cloudflare.com
A2803:f800:50::6ca2:c1ab🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgraham.ns.cloudflare.com
A2a06:98c1:50::ac40:21ab🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgraham.ns.cloudflare.com
A108.162.193.171🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgraham.ns.cloudflare.com
A172.64.33.171🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgraham.ns.cloudflare.com
A173.245.59.171🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgraham.ns.cloudflare.com
NSnina.ns.cloudflare.com
A2606:4700:50::adf5:3a88🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnina.ns.cloudflare.com
A2803:f800:50::6ca2:c088🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnina.ns.cloudflare.com
A2a06:98c1:50::ac40:2088🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnina.ns.cloudflare.com
A108.162.192.136🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnina.ns.cloudflare.com
A172.64.32.136🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnina.ns.cloudflare.com
A173.245.58.136🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnina.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.31.119, 172.67.176.126
IPv6 hints2606:4700:3030::ac43:b07e, 2606:4700:3031::6815:1f77
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=84, name=cloudflare-ech.com
SOAgraham.ns.cloudflare.comdns@cloudflare.com serial=2409782718

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=2035123228

Same first word

51-code.cn

DNS History

12 records (6 active, 6 former)

NSgraham.ns.cloudflare.comnina.ns.cloudflare.comA104.21.31.119172.67.176.1262606:4700:3030::ac43:b07e2606:4700:3031::6815:1f77188.114.96.0188.114.97.02606:4700:3035::ac43:b07e2606:4700:3036::6815:1f772a06:98c1:3120::2a06:98c1:3121::
●NSgraham.ns.cloudflare.com2026-02-25 → 2026-08-02 · 2 obs
● 2026-02-25 17:13:44
● 2026-08-02 06:22:04
●NSnina.ns.cloudflare.com2026-02-25 → 2026-08-02 · 2 obs
● 2026-02-25 17:13:44
● 2026-08-02 06:22:04
●A104.21.31.1192026-02-25 → 2026-08-02 · 6 obs
● 2026-02-25 17:13:44
● 2026-06-05 08:08:06
○ 2026-06-06 01:06:18
○ 2026-06-15 16:59:54
● 2026-07-08 03:48:00
● 2026-08-02 06:22:04
●A172.67.176.1262026-02-25 → 2026-08-02 · 6 obs
● 2026-02-25 17:13:44
● 2026-06-05 08:08:06
○ 2026-06-06 01:06:18
○ 2026-06-15 16:59:54
● 2026-07-08 03:48:00
● 2026-08-02 06:22:04
○A188.114.96.02026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-06 01:06:18
● 2026-06-15 16:59:54
○ 2026-07-08 03:48:00
○ 2026-08-02 06:22:04
○A188.114.97.02026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-06 01:06:18
● 2026-06-15 16:59:54
○ 2026-07-08 03:48:00
○ 2026-08-02 06:22:04
●A2606:4700:3030::ac43:b07e2026-07-08 → 2026-08-02 · 3 obs
○ 2026-06-15 16:59:54
● 2026-07-08 03:48:00
● 2026-08-02 06:22:04
●A2606:4700:3031::6815:1f772026-07-08 → 2026-08-02 · 3 obs
○ 2026-06-15 16:59:54
● 2026-07-08 03:48:00
● 2026-08-02 06:22:04
○A2606:4700:3035::ac43:b07e2026-02-25 → 2026-06-05 · 4 obs
● 2026-02-25 17:13:44
● 2026-06-05 08:08:06
○ 2026-06-06 01:06:18
○ 2026-08-02 06:22:04
○A2606:4700:3036::6815:1f772026-02-25 → 2026-06-05 · 4 obs
● 2026-02-25 17:13:44
● 2026-06-05 08:08:06
○ 2026-06-06 01:06:18
○ 2026-08-02 06:22:04
○A2a06:98c1:3120::2026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-06 01:06:18
● 2026-06-15 16:59:54
○ 2026-07-08 03:48:00
○ 2026-08-02 06:22:04
○A2a06:98c1:3121::2026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-06 01:06:18
● 2026-06-15 16:59:54
○ 2026-07-08 03:48:00
○ 2026-08-02 06:22:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
51-code.cnnina.ns.cloudflare.com, graham.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.171

NS records: nina.ns.cloudflare.com, graham.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51-code.cn (unsigned zone)

⏱️ Timing

Total: 822ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.176.126, 104.21.31.119
AAAA22606:4700:3030::ac43:b07e, 2606:4700:3031::6815:1f77
NS2graham.ns.cloudflare.com, nina.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1graham.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

51-code.cn directs to four IP numbers, which are 104.21.31.119, 172.67.176.126, 2606:4700:3030::ac43:b07e and 2606:4700:3031::6815:1f77.

phi-tuition.eu, bexis.sk, www.integralhost.net plus two other host names have IP numbers in common with 51-code.cn.

Name Servers

51-code.cn is served by two delegated name servers, graham.ns.cloudflare.com and nina.ns.cloudflare.com.

The name server configuration of 51-code.cn is shared with other domains, for instance bgprecision.cn, reuk.cn, micup.cn and two others.

There is at least partial name server overlap between 51-code.cn and other domains — xmedia.eu.org, be-a-magpie.com, publishingperformance.com and two more among them.

These name servers are routinely deployed together with the name servers june.ns.cloudflare.com.

Hosts with 6 IP addresses each:

graham.ns.cloudflare.com carries IP addresses 108.162.193.171, 172.64.33.171 and 173.245.59.171, with 3 other addresses beyond those.

nina.ns.cloudflare.com carries IP addresses 108.162.192.136, 172.64.32.136 and 173.245.58.136, with 3 other addresses beyond those.