21t.top - robtex.com

21t.top

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:b034🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:1f66🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.31.102Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.176.52🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkara.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a7b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A2803:f800:50::6ca2:c07b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkara.ns.cloudflare.com
A2a06:98c1:50::ac40:207b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkara.ns.cloudflare.com
A108.162.192.123🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A172.64.32.123🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
A173.245.58.123🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkara.ns.cloudflare.com
NSpeyton.ns.cloudflare.com
A2606:4700:58::adf5:3bdd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpeyton.ns.cloudflare.com
A2803:f800:50::6ca2:c1dd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpeyton.ns.cloudflare.com
A2a06:98c1:50::ac40:21dd🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpeyton.ns.cloudflare.com
A108.162.193.221🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpeyton.ns.cloudflare.com
A172.64.33.221🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpeyton.ns.cloudflare.com
A173.245.59.221🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpeyton.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.31.102, 172.67.176.52
IPv6 hints2606:4700:3030::ac43:b034, 2606:4700:3033::6815:1f66
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=185, name=cloudflare-ech.com
SOAkara.ns.cloudflare.comdns@cloudflare.com serial=2411603690

top

DNSSEC🔒 Signed (DS record present)
NSa.zdnscloud.com ⭐
NSa.zdnscloud.cn
NSb.zdnscloud.cn
NSc.zdnscloud.com
NSd.zdnscloud.com
NSe.zdnscloud.cn
NSf.zdnscloud.cn
NSi.zdnscloud.cn
NSj.zdnscloud.com
TXT2026-08-11_12:00:02
SOAa.zdnscloud.comtd_dns_gtld@knet.cn serial=1396725457
⚠️ On DNS blocklist: spam-tlds

Same first word

21t.top
21t.net
21t.click
21t.org
21t.com
21t.cc
21t.casino
21t.ru

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DNS History

6 records (6 active, 0 former)

NSkara.ns.cloudflare.compeyton.ns.cloudflare.comA104.21.31.102172.67.176.522606:4700:3030::ac43:b0342606:4700:3033::6815:1f66
●NSkara.ns.cloudflare.com2026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36
●NSpeyton.ns.cloudflare.com2026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36
●A104.21.31.1022026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36
●A172.67.176.522026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36
●A2606:4700:3030::ac43:b0342026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36
●A2606:4700:3033::6815:1f662026-06-25 → 2026-08-11 · 2 obs
● 2026-06-25 15:58:22
● 2026-08-11 04:03:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
topa.zdnscloud.cn, b.zdnscloud.cn, c.zdnscloud.com, d.zdnscloud.com...-
21t.topkara.ns.cloudflare.com, peyton.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.123

NS records: kara.ns.cloudflare.com, peyton.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21t.top (unsigned zone)

⏱️ Timing

Total: 500ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.176.52, 104.21.31.102
AAAA22606:4700:3033::6815:1f66, 2606:4700:3030::ac43:b034
NS2kara.ns.cloudflare.com, peyton.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1kara.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

21t.top resolves to four IP addresses: 104.21.31.102, 172.67.176.52, 2606:4700:3030::ac43:b034 and 2606:4700:3033::6815:1f66.

Among the host names that share IP numbers with 21t.top are isc.education, azzza.ru, eca-energy.com and two others.

Name Servers

DNS delegation for 21t.top points to two name servers: kara.ns.cloudflare.com and peyton.ns.cloudflare.com.

21t.top has the same name server delegation as a number of other domains, such as xavidol.com, dooball98.com, 297837.com and two more.

21t.top partially shares its NS delegation with several other domains, including websystems.com.au, formplugin.com, mwqvtsan.xyz and two others.

These name servers are regularly seen alongside olivia.ns.cloudflare.com and adrian.ns.cloudflare.com as name servers.

Host names resolving to 6 IP numbers:

kara.ns.cloudflare.com has IP addresses 108.162.192.123, 172.64.32.123 and 173.245.58.123, plus 3 other.

peyton.ns.cloudflare.com has IP addresses 108.162.193.221, 172.64.33.221 and 173.245.59.221, plus 3 other.