code21cn.com - robtex.com

code21cn.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:bf0e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:5465🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.101Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.14🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdean.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A2803:f800:50::6ca2:c199🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdean.ns.cloudflare.com
A2a06:98c1:50::ac40:2199🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdean.ns.cloudflare.com
A108.162.193.153🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A172.64.33.153🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
A173.245.59.153🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdean.ns.cloudflare.com
NSrose.ns.cloudflare.com
A2606:4700:50::adf5:3a8d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A2803:f800:50::6ca2:c08d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrose.ns.cloudflare.com
A2a06:98c1:50::ac40:208d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrose.ns.cloudflare.com
A108.162.192.141🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A172.64.32.141🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
A173.245.58.141🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrose.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.84.101, 172.67.191.14
IPv62606:4700:3033::ac43:bf0e, 2606:4700:3034::6815:5465
SOAdean.ns.cloudflare.comdns@cloudflare.com serial=2399724882

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Same first word

code21cn.com

DNS History

9 records (6 active, 3 former)

200920112013201520172019202120232025NSdean.ns.cloudflare.comrose.ns.cloudflare.comns1.dsredirection.comns2.dsredirection.comA104.21.84.101172.67.191.142606:4700:3033::ac43:bf0e2606:4700:3034::6815:5465208.73.212.12
●NSdean.ns.cloudflare.com2026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48
○NSns1.dsredirection.com2008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 06:19:22
○ 2015-11-09 09:30:54
○ 2026-03-24 03:37:48
○NSns2.dsredirection.com2008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 06:19:22
○ 2015-11-09 09:30:54
○ 2026-03-24 03:37:48
●NSrose.ns.cloudflare.com2026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48
●A104.21.84.1012026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48
●A172.67.191.142026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48
○A208.73.212.122008-03-14 → 2008-03-14 · 3 obs
● 2008-03-14 06:19:22
○ 2015-11-09 09:30:54
○ 2026-03-24 03:37:48
●A2606:4700:3033::ac43:bf0e2026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48
●A2606:4700:3034::6815:54652026-03-03 → 2026-03-24 · 3 obs
○ 2015-11-09 09:30:54
● 2026-03-03 08:12:40
● 2026-03-24 03:37:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
code21cn.comrose.ns.cloudflare.com, dean.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.141

NS records: rose.ns.cloudflare.com, dean.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for code21cn.com (unsigned zone)

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.191.14, 104.21.84.101
AAAA22606:4700:3033::ac43:bf0e, 2606:4700:3034::6815:5465
NS2dean.ns.cloudflare.com, rose.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dean.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (rose.ns.cloudflare.com, rose.ns.cloudflare.com, rose.ns.cloudflare.com...)

Analysis

IP Addresses

code21cn.com points to four IP numbers: 2606:4700:3033::ac43:bf0e, 2606:4700:3034::6815:5465, 104.21.84.101 and 172.67.191.14.

Other host names, for instance emmanuelpottstown.org, www.urlop.pl, vehiclehistory.report, stevesfamouspizza.com and vos-(0x736578)toys.fr share IP numbers with code21cn.com.

Name Servers

code21cn.com is delegated to two name servers: dean.ns.cloudflare.com and rose.ns.cloudflare.com.

code21cn.com uses the same name server setup as other domains, for instance wanyangmao.com, warnetqq.net, rock-tumblers.com, vorsorgeberatung.net and fjjinsong.com.

code21cn.com shares name servers with other domains at least partially, for instance gracioso.net, todossantosmusicfestival.com, 2lamour.net, facepinch.com and tam12den.com.

these name servers are commonly used together with max.ns.cloudflare.com and steven.ns.cloudflare.com.

Host names with six IP numbers: dean.ns.cloudflare.com points to 2606:4700:58::adf5:3b99, 2803:f800:50::6ca2:c199, 2a06:98c1:50::ac40:2199, 108.162.193.153, 172.64.33.153 and 173.245.59.153; rose.ns.cloudflare.com points to 2606:4700:50::adf5:3a8d, 2803:f800:50::6ca2:c08d, 2a06:98c1:50::ac40:208d, 108.162.192.141, 172.64.32.141 and 173.245.58.141.