sf637.top - robtex.com
sf637.top
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:ac59🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3031::6815:3fe0🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.63.224Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.172.89🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cullen.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c5b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c35b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:235b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| A | 108.162.195.91🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| A | 162.159.44.91Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| A | 172.64.35.91🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cullen.ns.cloudflare.com | ||||||
| NS | paris.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2671🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c271🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2271🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| A | 108.162.194.113🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| A | 162.159.38.113Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| A | 172.64.34.113🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | paris.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.63.224, 172.67.172.89 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:ac59, 2606:4700:3031::6815:3fe0 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=121, name=cloudflare-ech.com | ||||||
| SOA | cullen.ns.cloudflare.comdns@cloudflare.com serial=2408459528 | ||||||
top
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.zdnscloud.com ⭐ | ||||||
| NS | a.zdnscloud.cn | ||||||
| NS | b.zdnscloud.cn | ||||||
| NS | c.zdnscloud.com | ||||||
| NS | d.zdnscloud.com | ||||||
| NS | e.zdnscloud.cn | ||||||
| NS | f.zdnscloud.cn | ||||||
| NS | i.zdnscloud.cn | ||||||
| NS | j.zdnscloud.com | ||||||
| TXT | 2026-07-21_06:00:01 | ||||||
| SOA | a.zdnscloud.comtd_dns_gtld@knet.cn serial=1396513097 | ||||||
Same first word
sf637.top |
Similar names
DNS History
7 records (6 active, 1 former)
●NScullen.ns.cloudflare.com2026-06-01 → 2026-07-20 · 2 obs
● 2026-07-20 22:04:42
●NSparis.ns.cloudflare.com2026-06-01 → 2026-07-20 · 2 obs
● 2026-07-20 22:04:42
●A104.21.63.2242026-06-01 → 2026-07-20 · 2 obs
● 2026-07-20 22:04:42
●A172.67.172.892026-06-01 → 2026-07-20 · 2 obs
● 2026-07-20 22:04:42
●A2606:4700:3030::ac43:ac592026-07-20 → 2026-07-20 · 3 obs
● 2026-07-20 22:04:40
● 2026-07-20 22:04:42
●A2606:4700:3031::6815:3fe02026-06-01 → 2026-07-20 · 2 obs
● 2026-07-20 22:04:42
○A2606:4700:3036::ac43:ac592026-06-01 → 2026-06-17 · 4 obs
● 2026-06-17 21:01:52
○ 2026-07-20 22:04:40
○ 2026-07-20 22:04:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| top | i.zdnscloud.cn, a.zdnscloud.cn, b.zdnscloud.cn, e.zdnscloud.cn... | - |
| sf637.top | paris.ns.cloudflare.com, cullen.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.194.113
NS records: paris.ns.cloudflare.com, cullen.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sf637.top (unsigned zone)
⏱️ Timing
Total: 622ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.172.89, 104.21.63.224 |
| AAAA | 2 | 2606:4700:3031::6815:3fe0, 2606:4700:3030::ac43:ac59 |
| NS | 2 | cullen.ns.cloudflare.com, paris.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cullen.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
sf637.top resolves to four IP addresses: 104.21.63.224, 172.67.172.89, 2606:4700:3030::ac43:ac59 and 2606:4700:3031::6815:3fe0.
Additional host names — kvkhotelbook.com, ath-sh.com, ftzvi.com and two others — share IP numbers with sf637.top.
Name Servers
DNS delegation for sf637.top points to two name servers: cullen.ns.cloudflare.com and paris.ns.cloudflare.com.
sf637.top shares its name server setup with other domains, including dsquared2outlet.us.com, tablezip.com, roobet-casino-en-ligne.fr and two others.
sf637.top has at least partial name server overlap with other domains, such as tweetyy.site, easynetworkguide.nl, farmerbrownsf.com and two others.
These name servers are frequently paired with the name servers leia.ns.cloudflare.com, kipp.ns.cloudflare.com, treasure.ns.cloudflare.com and two others.
Host names with 6 IP numbers:
cullen.ns.cloudflare.com has IP addresses 108.162.195.91, 162.159.44.91 and 172.64.35.91, plus 3 other.
paris.ns.cloudflare.com has IP addresses 108.162.194.113, 162.159.38.113 and 172.64.34.113, plus 3 other.