521sss.com - robtex.com
521sss.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:d04a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:1710🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.23.16Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.208.74🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | harlee.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26ee🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2ee🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22ee🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| A | 108.162.194.238🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| A | 162.159.38.238Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| A | 172.64.34.238🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harlee.ns.cloudflare.com | ||||||
| NS | terin.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bec🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1ec🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21ec🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| A | 108.162.193.236🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| A | 172.64.33.236🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| A | 173.245.59.236🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | terin.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.23.16, 172.67.208.74 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:d04a, 2606:4700:3034::6815:1710 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com | ||||||
| SOA | harlee.ns.cloudflare.comdns@cloudflare.com serial=2403980696 | ||||||
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=1778686646 | ||||||
Same first word
521sss.com |
Similar names
DNS History
8 records (6 active, 2 former)
●NSharlee.ns.cloudflare.com2026-05-02 → 2026-05-13 · 2 obs
● 2026-05-13 15:50:52
●NSterin.ns.cloudflare.com2026-05-02 → 2026-05-13 · 2 obs
● 2026-05-13 15:50:52
●A104.21.23.162026-05-02 → 2026-05-13 · 3 obs
● 2026-05-02 15:53:36
● 2026-05-13 15:50:52
●A172.67.208.742026-05-02 → 2026-05-13 · 3 obs
● 2026-05-02 15:53:36
● 2026-05-13 15:50:52
●A2606:4700:3030::ac43:d04a2026-05-02 → 2026-05-13 · 3 obs
● 2026-05-02 15:53:36
● 2026-05-13 15:50:52
●A2606:4700:3034::6815:17102026-05-02 → 2026-05-13 · 3 obs
● 2026-05-02 15:53:36
● 2026-05-13 15:50:52
○A43.230.112.242015-07-09 → 2015-07-09 · 3 obs
○ 2026-05-02 15:53:36
○ 2026-05-13 15:50:52
○CNAMElx2371680462.0095.wopaiyi.com2015-07-09 → 2015-07-09 · 3 obs
○ 2016-09-27 04:51:12
○ 2026-05-13 15:50:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 521sss.com | terin.ns.cloudflare.com, harlee.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.236
NS records: terin.ns.cloudflare.com, harlee.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 521sss.com (unsigned zone)
⏱️ Timing
Total: 231ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.23.16, 172.67.208.74 |
| AAAA | 2 | 2606:4700:3030::ac43:d04a, 2606:4700:3034::6815:1710 |
| NS | 2 | harlee.ns.cloudflare.com, terin.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | harlee.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (terin.ns.cloudflare.com, terin.ns.cloudflare.com, terin.ns.cloudflare.com...)
Analysis
IP Addresses
521sss.com resolves to four IPs: 2606:4700:3030::ac43:d04a, 2606:4700:3034::6815:1710, 104.21.23.16 and 172.67.208.74.
Other host names such as dlyjt.cn, wisdomkalivara.sbs, dogad(0x616e616c)isveris.com, radarstats.com and metainmo.com share IP numbers with 521sss.com.
Name Servers
521sss.com is delegated to two name servers: harlee.ns.cloudflare.com and terin.ns.cloudflare.com.
521sss.com uses the same name server setup as other domains, including dalvfinance.com, cribmd.com, fzckjjj.com, mnsfy.com and tiaolaopo.com.
At least part of the name servers for 521sss.com are shared with other domains, for instance gooddyeyoung.com, exoticorabeach.com, wdushu.com, rd-station.workers.dev and gm-cdn-d4oi-lt7zcfs-35ymvrj.com.
These name servers are often used together with rosa.ns.cloudflare.com, harmony.ns.cloudflare.com and daphne.ns.cloudflare.com.
Host names with six IP numbers:
harlee.ns.cloudflare.com points to: 2606:4700:50::a29f:26ee, 2803:f800:50::6ca2:c2ee, 2a06:98c1:50::ac40:22ee, 108.162.194.238, 162.159.38.238 and 172.64.34.238.
terin.ns.cloudflare.com points to: 2606:4700:58::adf5:3bec, 2803:f800:50::6ca2:c1ec, 2a06:98c1:50::ac40:21ec, 108.162.193.236, 172.64.33.236 and 173.245.59.236.