u183.cn - robtex.com
u183.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:64c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:869b🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.6.76Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.134.155🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | coco.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a68🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c068🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2068🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| A | 108.162.192.104🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| A | 172.64.32.104🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| A | 173.245.58.104🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | coco.ns.cloudflare.com | ||||||
| NS | nero.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c1c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c31c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:231c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| A | 108.162.195.28🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| A | 162.159.44.28Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| A | 172.64.35.28🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nero.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.6.76, 172.67.134.155 | ||||||
| IPv6 hints | 2606:4700:3033::6815:64c, 2606:4700:3037::ac43:869b | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com | ||||||
| SOA | coco.ns.cloudflare.comdns@cloudflare.com serial=2397096228 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034666589 | ||||||
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
●NScoco.ns.cloudflare.com2026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
●NSnero.ns.cloudflare.com2026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
○NSns1.72dns.com2015-07-14 → 2016-06-18 · 4 obs
● 2016-06-18 22:55:16
○ 2026-04-02 23:14:52
○ 2026-04-13 15:31:02
○NSns2.idc1.cn2015-07-14 → 2016-06-18 · 4 obs
● 2016-06-18 22:55:16
○ 2026-04-02 23:14:52
○ 2026-04-13 15:31:02
○A103.37.125.1532015-07-14 → 2016-06-18 · 4 obs
● 2016-06-18 22:55:16
○ 2026-04-02 23:14:52
○ 2026-04-13 15:31:02
●A104.21.6.762026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
●A172.67.134.1552026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
●A2606:4700:3033::6815:64c2026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
●A2606:4700:3037::ac43:869b2026-04-02 → 2026-04-13 · 3 obs
● 2026-04-02 23:14:52
● 2026-04-13 15:31:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, c.dns.cn, d.dns.cn... | - |
| u183.cn | coco.ns.cloudflare.com, nero.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.28
NS records: coco.ns.cloudflare.com, nero.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for u183.cn (unsigned zone)
⏱️ Timing
Total: 2706ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.134.155, 104.21.6.76 |
| AAAA | 2 | 2606:4700:3033::6815:64c, 2606:4700:3037::ac43:869b |
| NS | 2 | coco.ns.cloudflare.com, nero.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | coco.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
u183.cn points to four IP numbers: 2606:4700:3033::6815:64c, 2606:4700:3037::ac43:869b, 104.21.6.76 and 172.67.134.155.
Other host names, for instance pagesbox.fr, akwebtasarim.com, gz-xz.com, www.web2de.com and realtong.com share IP numbers with u183.cn.
Name Servers
Delegation for u183.cn rests with two name servers, coco.ns.cloudflare.com and nero.ns.cloudflare.com.
u183.cn shares the same name server setup as other domains, including 1914246.cn, 4lm9b2.cn, shtuhui.cn, aili-af.cn and richdg.cn.
u183.cn at least partially shares name servers with other domains, for instance cakicilarmakina.com, mec.br.com, businassposte.sbs, 499f0fbe8869.com and chyka.com.
these name servers are commonly used with ernest.ns.cloudflare.com, hugh.ns.cloudflare.com and magdalena.ns.cloudflare.com.
Host names with six IP numbers: coco.ns.cloudflare.com points to: 2606:4700:50::adf5:3a68, 2803:f800:50::6ca2:c068, 2a06:98c1:50::ac40:2068, 108.162.192.104, 172.64.32.104 and 173.245.58.104. nero.ns.cloudflare.com points to: 2606:4700:58::a29f:2c1c, 2803:f800:50::6ca2:c31c, 2a06:98c1:50::ac40:231c, 108.162.195.28, 162.159.44.28 and 172.64.35.28.