https21.com - robtex.com
https21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:5f44🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:8f7c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.95.68Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.143.124🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dora.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c06c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:206c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 108.162.192.108🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 172.64.32.108🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 173.245.58.108🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| NS | matt.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b83🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c183🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2183🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| A | 108.162.193.131🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| A | 172.64.33.131🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| A | 173.245.59.131🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | matt.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.95.68, 172.67.143.124 | ||||||
| IPv6 hints | 2606:4700:3032::6815:5f44, 2606:4700:3034::ac43:8f7c | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=64, name=cloudflare-ech.com | ||||||
| SOA | dora.ns.cloudflare.comdns@cloudflare.com serial=2413253911 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1788094235 | ||||||
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
DNS History
6 records (6 active, 0 former)
●NSdora.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
●NSmatt.ns.cloudflare.com2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
●A104.21.95.682026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
●A172.67.143.1242026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
●A2606:4700:3032::6815:5f442026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
●A2606:4700:3034::ac43:8f7c2026-08-29 → 2026-08-30 · 2 obs
● 2026-08-30 13:12:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net... | - |
| https21.com | dora.ns.cloudflare.com, matt.ns.cloudflare.com | 12 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: 159ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.143.124, 104.21.95.68 |
| AAAA | 2 | 2606:4700:3034::ac43:8f7c, 2606:4700:3032::6815:5f44 |
| NS | 2 | dora.ns.cloudflare.com, matt.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dora.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 directs to four IP numbers, which are 104.21.95.68, 172.67.143.124, 2606:4700:3032::6815:5f44 and 2606:4700:3034::ac43:8f7c.
Two other host names, along with putra-bapa.com, yifu520.cn and merlinlanguageacademy.com, also share IP numbers with https21.com.
Name Servers
https21.com uses two name servers for its delegation: dora.ns.cloudflare.com and matt.ns.cloudflare.com.
https21.com shares its NS records with other domains, for example perekl.com, rocdaily.com, wavwt.com and two others.
The name servers of https21.com overlap at least partially with those of other domains — among them georgejgrove.com, aabbccxxyyzz.com, riverwalklandingnc.pages.dev and two more.
DNS names with 6 IP addresses:
Hostname dora.ns.cloudflare.com directs to 108.162.192.108, 172.64.32.108 and 173.245.58.108 along with 3 other IP addresses.
Hostname matt.ns.cloudflare.com directs to 108.162.193.131, 172.64.33.131 and 173.245.59.131 along with 3 other IP addresses.