www.521821.com - robtex.com
www.521821.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:27f8🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:ac78🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.39.248Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.172.120🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.39.248, 172.67.172.120 | ||||||
| IPv6 hints | 2606:4700:3032::6815:27f8, 2606:4700:3033::ac43:ac78 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=28, name=cloudflare-ech.com | ||||||
521821.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:27f8🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:ac78🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.39.248Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.172.120🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | miles.ns.cloudflare.com ⭐ | ||||||
| NS | tessa.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.39.248, 172.67.172.120 | ||||||
| IPv6 hints | 2606:4700:3032::6815:27f8, 2606:4700:3033::ac43:ac78 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com | ||||||
| SOA | miles.ns.cloudflare.comdns@cloudflare.com serial=2398995431 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●A104.21.39.2482026-04-11 → 2026-04-13 · 2 obs
● 2026-04-11 20:24:24
● 2026-04-13 12:07:02
● 2026-04-13 12:07:02
●A172.67.172.1202026-04-11 → 2026-04-13 · 2 obs
● 2026-04-11 20:24:24
● 2026-04-13 12:07:02
● 2026-04-13 12:07:02
●A2606:4700:3032::6815:27f82026-04-11 → 2026-04-13 · 2 obs
● 2026-04-11 20:24:24
● 2026-04-13 12:07:02
● 2026-04-13 12:07:02
●A2606:4700:3033::ac43:ac782026-04-11 → 2026-04-13 · 2 obs
● 2026-04-11 20:24:24
● 2026-04-13 12:07:02
● 2026-04-13 12:07:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net... | - |
| 521821.com | miles.ns.cloudflare.com, tessa.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.194.229
NS records: miles.ns.cloudflare.com, tessa.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 521821.com (unsigned zone)
⏱️ Timing
Total: 139ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.172.120, 104.21.39.248 |
| AAAA | 2 | 2606:4700:3032::6815:27f8, 2606:4700:3033::ac43:ac78 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (miles.ns.cloudflare.com, miles.ns.cloudflare.com, miles.ns.cloudflare.com...)
Analysis
IP Addresses
www.521821.com resolves to four IP numbers: 2606:4700:3032::6815:27f8, 2606:4700:3033::ac43:ac78, 104.21.39.248 and 172.67.172.120.
other host names for instance downtownsushibar.com, ypiz-ajoda.site, homegrownhappiness.com, openair.solutions and lordfilmrwm.ru share IP numbers with www.521821.com.