https21.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

https21.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:5f44🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:8f7c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.95.68Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.124🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdora.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A2803:f800:50::6ca2:c06c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdora.ns.cloudflare.com
A2a06:98c1:50::ac40:206c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdora.ns.cloudflare.com
A108.162.192.108🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A172.64.32.108🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A173.245.58.108🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
NSmatt.ns.cloudflare.com
A2606:4700:58::adf5:3b83🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmatt.ns.cloudflare.com
A2803:f800:50::6ca2:c183🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmatt.ns.cloudflare.com
A2a06:98c1:50::ac40:2183🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmatt.ns.cloudflare.com
A108.162.193.131🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmatt.ns.cloudflare.com
A172.64.33.131🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmatt.ns.cloudflare.com
A173.245.59.131🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmatt.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.95.68, 172.67.143.124
IPv6 hints2606:4700:3032::6815:5f44, 2606:4700:3034::ac43:8f7c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=24, name=cloudflare-ech.com
SOAdora.ns.cloudflare.comdns@cloudflare.com serial=2413253911

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=1788075350

Same first word

https21.com

Previous names

https-(0x78766964656f73).com
https-youtube.com
https0.com
https01.com
https1.com
https114.com
https123365-sb.com
https123861.com
https1500accountant.com
https16f688.com
https17.com
https2.com
https20.com

Next names

https24.com
https248365365.com
https2cdn.com
https2hax.com
https3.com
https302.com
https340999.com
https348365365.com
https365-688.com
https365-848.com
https365-858.com
https365838.com
https365848.com
https369bet.com
https3a51f0myshopify.com
https3sconsultants.com
https402a0.com
https409.com

DNS History

6 records (6 active, 0 former)

NSdora.ns.cloudflare.commatt.ns.cloudflare.comA104.21.95.68172.67.143.1242606:4700:3032::6815:5f442606:4700:3034::ac43:8f7c
●NSdora.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42
●NSmatt.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42
●A104.21.95.682026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42
●A172.67.143.1242026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42
●A2606:4700:3032::6815:5f442026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42
●A2606:4700:3034::ac43:8f7c2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-29 16:27:24
● 2026-08-30 07:36:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...-
https21.comdora.ns.cloudflare.com, matt.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.131

NS records: dora.ns.cloudflare.com, matt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for https21.com (unsigned zone)

⏱️ Timing

Total: 199ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.95.68, 172.67.143.124
AAAA22606:4700:3034::ac43:8f7c, 2606:4700:3032::6815:5f44
NS2dora.ns.cloudflare.com, matt.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dora.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

https21.com points to the four IP addresses 104.21.95.68, 172.67.143.124, 2606:4700:3032::6815:5f44 and 2606:4700:3034::ac43:8f7c.

Additional host names — putra-bapa.com, yifu520.cn, merlinlanguageacademy.com and two others — share IP numbers with https21.com.

Name Servers

https21.com is served by two delegated name servers, dora.ns.cloudflare.com and matt.ns.cloudflare.com.

https21.com shares its name server setup with other domains, including perekl.com, rocdaily.com, wavwt.com and two others.

There is at least partial name server overlap between https21.com and other domains — georgejgrove.com, aabbccxxyyzz.com, riverwalklandingnc.pages.dev and two more among them.

Host names with 6 IP numbers:

dora.ns.cloudflare.com carries IP addresses 108.162.192.108, 172.64.32.108 and 173.245.58.108, with 3 other addresses beyond those.

matt.ns.cloudflare.com carries IP addresses 108.162.193.131, 172.64.33.131 and 173.245.59.131, with 3 other addresses beyond those.