51dezhou.com - robtex.com
51dezhou.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:dd15🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3032::6815:4645🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.70.69Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.221.21🇺🇸 Cloudflare172.67.208.0/20 , 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 | vivienne.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2632🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c232🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2232🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| A | 108.162.194.50🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| A | 162.159.38.50Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| A | 172.64.34.50🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | vivienne.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.70.69, 172.67.221.21 | ||||||
| IPv6 | 2606:4700:3030::ac43:dd15, 2606:4700:3032::6815:4645 | ||||||
| SOA | cullen.ns.cloudflare.comdns@cloudflare.com serial=2394971101 | ||||||
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=1771291435 | ||||||
DNS History
11 records (6 active, 5 former)
●NScullen.ns.cloudflare.com2026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
○NSdns31.hichina.com2015-07-15 → 2017-08-17 · 3 obs
● 2017-08-17 04:23:54
○ 2026-03-09 10:35:10
○NSdns32.hichina.com2015-07-15 → 2017-08-17 · 3 obs
● 2017-08-17 04:23:54
○ 2026-03-09 10:35:10
●NSvivienne.ns.cloudflare.com2026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
●A104.21.70.692026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
○A123.59.18.52017-08-17 → 2017-08-17 · 3 obs
● 2017-08-17 04:23:54
○ 2026-03-09 10:35:10
●A172.67.221.212026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
●A2606:4700:3030::ac43:dd152026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
●A2606:4700:3032::6815:46452026-03-09 → 2026-03-09 · 2 obs
● 2026-03-09 10:35:10
○A42.156.141.132015-07-15 → 2016-03-03 · 4 obs
● 2016-03-03 02:40:20
○ 2016-06-26 07:07:42
○ 2026-03-09 10:35:10
○A42.156.141.172016-06-26 → 2016-06-26 · 4 obs
● 2016-06-26 07:07:42
○ 2017-08-17 04:23:54
○ 2026-03-09 10:35:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 51dezhou.com | vivienne.ns.cloudflare.com, cullen.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server: 108.162.194.50
NS records: vivienne.ns.cloudflare.com, cullen.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51dezhou.com (unsigned zone)
⏱️ Timing
Total: 120ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.221.21, 104.21.70.69 |
| AAAA | 2 | 2606:4700:3032::6815:4645, 2606:4700:3030::ac43:dd15 |
| NS | 2 | cullen.ns.cloudflare.com, vivienne.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cullen.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (vivienne.ns.cloudflare.com, vivienne.ns.cloudflare.com, vivienne.ns.cloudflare.com...)
Analysis
IP Addresses
51dezhou.com refers to four IP numbers: 2606:4700:3030::ac43:dd15, 2606:4700:3032::6815:4645, 104.21.70.69 and 172.67.221.21.
Other host names, for instance outgreen.org, majelsa.com, 9313781-coinbase.com, 779y.com and wxstz.com share IP numbers with 51dezhou.com.
Name Servers
51dezhou.com's delegation uses two name servers: cullen.ns.cloudflare.com and vivienne.ns.cloudflare.com.
51dezhou.com uses the same name server setup as other domains, such as tseyuen.com, bckf.net, mayunli.com, jtldec.com and bjboshu.com.
51dezhou.com at least partially shares name servers with other domains, including eco-planetfusionhub.info, ivojuzu.top, gothaminformatics.com, rufilm.top and igopost.com.
These name servers are commonly used with james.ns.cloudflare.com, leia.ns.cloudflare.com and candy.ns.cloudflare.com.
Host names with six IP numbers:
cullen.ns.cloudflare.com points to 2606:4700:58::a29f:2c5b, 2803:f800:50::6ca2:c35b, 2a06:98c1:50::ac40:235b, 108.162.195.91, 162.159.44.91 and 172.64.35.91.
vivienne.ns.cloudflare.com points to 2606:4700:50::a29f:2632, 2803:f800:50::6ca2:c232, 2a06:98c1:50::ac40:2232, 108.162.194.50, 162.159.38.50 and 172.64.34.50.