51usz.net - robtex.com
51usz.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:3089🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:9827🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.48.137Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.152.39🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cris.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2cca🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3ca🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23ca🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| A | 108.162.195.202🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| A | 162.159.44.202Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| A | 172.64.35.202🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cris.ns.cloudflare.com | ||||||
| NS | jamie.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3aa8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0a8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20a8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| A | 108.162.192.168🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| A | 172.64.32.168🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| A | 173.245.58.168🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jamie.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.48.137, 172.67.152.39 | ||||||
| IPv6 hints | 2606:4700:3034::6815:3089, 2606:4700:3035::ac43:9827 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com | ||||||
| SOA | cris.ns.cloudflare.comdns@cloudflare.com serial=2399994053 | ||||||
net
| 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=1775873127 | ||||||
Same first word
DNS History
6 records (6 active, 0 former)
●NScris.ns.cloudflare.com2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
●NSjamie.ns.cloudflare.com2026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
●A104.21.48.1372026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
●A172.67.152.392026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
●A2606:4700:3034::6815:30892026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
●A2606:4700:3035::ac43:98272026-04-01 → 2026-04-11 · 2 obs
● 2026-04-11 02:08:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | m.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net... | - |
| 51usz.net | jamie.ns.cloudflare.com, cris.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.202
NS records: jamie.ns.cloudflare.com, cris.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51usz.net (unsigned zone)
⏱️ Timing
Total: 420ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.48.137, 172.67.152.39 |
| AAAA | 2 | 2606:4700:3034::6815:3089, 2606:4700:3035::ac43:9827 |
| NS | 2 | cris.ns.cloudflare.com, jamie.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cris.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
51usz.net maps to four IP numbers: 2606:4700:3034::6815:3089, 2606:4700:3035::ac43:9827, 104.21.48.137 and 172.67.152.39.
other host names include abensur.me, freefashioninternships.com, dwagh.com, ns2.atlanta.com and vectraprimeinvestments.digital; they share IP numbers with 51usz.net.
Name Servers
Two name servers cris.ns.cloudflare.com and jamie.ns.cloudflare.com handle the delegation for 51usz.net.
51usz.net shares the same name server setup as other domains, for instance koreasydney.net, vietjetkm.net, aap-test.net, thieunhivideo.net and kingo-biz.net.
51usz.net at least partially shares name servers with other domains, for instance pl-352463.shop, colegit.com, nightflash.co.uk, dammayxanh.com and shomp.com.
These name servers are commonly used with sloan.ns.cloudflare.com and ben.ns.cloudflare.com.
Six IP addresses per host:
cris.ns.cloudflare.com points to 2606:4700:58::a29f:2cca, 2803:f800:50::6ca2:c3ca, 2a06:98c1:50::ac40:23ca, 108.162.195.202, 162.159.44.202 and 172.64.35.202; jamie.ns.cloudflare.com points to 2606:4700:50::adf5:3aa8, 2803:f800:50::6ca2:c0a8, 2a06:98c1:50::ac40:20a8, 108.162.192.168, 172.64.32.168 and 173.245.58.168