uz21.cn - robtex.com
uz21.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:ad3a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:1ea1🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.30.161Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.173.58🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | isla.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a77🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c077🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2077🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 108.162.192.119🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 172.64.32.119🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 173.245.58.119🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| NS | konnor.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c6a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c36a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:236a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| A | 108.162.195.106🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| A | 162.159.44.106Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| A | 172.64.35.106🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | konnor.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.30.161, 172.67.173.58 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:ad3a, 2606:4700:3037::6815:1ea1 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=170, name=cloudflare-ech.com | ||||||
| SOA | isla.ns.cloudflare.comdns@cloudflare.com serial=2408831141 | ||||||
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=2035066751 | ||||||
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
●NSisla.ns.cloudflare.com2026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
●NSkonnor.ns.cloudflare.com2026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
○NSns1.nowcndns.com2026-03-28 → 2026-05-27 · 3 obs
● 2026-05-27 17:07:14
○ 2026-07-20 20:48:50
○NSns2.nowcndns.com2026-03-28 → 2026-05-27 · 3 obs
● 2026-05-27 17:07:14
○ 2026-07-20 20:48:50
●A104.21.30.1612026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
○A154.85.210.2092026-03-28 → 2026-05-27 · 3 obs
● 2026-05-27 17:07:14
○ 2026-07-20 20:48:50
●A172.67.173.582026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
●A2606:4700:3031::ac43:ad3a2026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
●A2606:4700:3037::6815:1ea12026-07-20 → 2026-07-20 · 2 obs
● 2026-07-20 20:48:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, e.dns.cn, b.dns.cn, a.dns.cn... | - |
| uz21.cn | isla.ns.cloudflare.com, konnor.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.119
NS records: isla.ns.cloudflare.com, konnor.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for uz21.cn (unsigned zone)
⏱️ Timing
Total: 2812ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.173.58, 104.21.30.161 |
| AAAA | 2 | 2606:4700:3031::ac43:ad3a, 2606:4700:3037::6815:1ea1 |
| NS | 2 | isla.ns.cloudflare.com, konnor.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | isla.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
uz21.cn points to the four IP addresses 104.21.30.161, 172.67.173.58, 2606:4700:3031::ac43:ad3a and 2606:4700:3037::6815:1ea1.
Two other host names, along with www.51ql7.com, stockxbidz.com and mail.racopier.com, also share IP numbers with uz21.cn.
Name Servers
Two name servers handle the delegation for uz21.cn: isla.ns.cloudflare.com and konnor.ns.cloudflare.com.
uz21.cn shares its NS records with other domains, for example drki.cn, cjqzs.com, shuruok.com and two others.
There is at least partial name server overlap between uz21.cn and other domains — uyouj.com, sherpack.com, 0xpcp.com and two more among them.
These name servers frequently co-occur with the name servers hank.ns.cloudflare.com and max.ns.cloudflare.com.
DNS names with 6 IP addresses:
isla.ns.cloudflare.com resolves to 108.162.192.119, 172.64.32.119 and 173.245.58.119 among others, with 3 other IP addresses in total.
konnor.ns.cloudflare.com resolves to 108.162.195.106, 162.159.44.106 and 172.64.35.106 among others, with 3 other IP addresses in total.