81ku.com - robtex.com
81ku.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:16d2🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:cf19🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.22.210Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.207.25🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | houston.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c34🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c334🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2334🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| A | 108.162.195.52🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| A | 162.159.44.52Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| A | 172.64.35.52🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | houston.ns.cloudflare.com | ||||||
| NS | zariyah.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2648🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c248🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2248🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| A | 108.162.194.72🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| A | 162.159.38.72Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| A | 172.64.34.72🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zariyah.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.22.210, 172.67.207.25 | ||||||
| IPv6 hints | 2606:4700:3034::6815:16d2, 2606:4700:3034::ac43:cf19 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=210, name=cloudflare-ech.com | ||||||
| SOA | houston.ns.cloudflare.comdns@cloudflare.com serial=2403806842 | ||||||
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=1778629606 | ||||||
Same first word
81ku.com |
Similar names
DNS History
27 records (6 active, 21 former)
○NSdns1.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns10.hichina.com2015-10-31 → 2015-11-11 · 5 obs
○ 2015-08-21 13:15:18
● 2015-10-31 00:47:16
● 2015-11-11 21:19:22
○ 2015-11-23 15:14:24
○ 2026-05-13 00:08:08
● 2015-10-31 00:47:16
● 2015-11-11 21:19:22
○ 2015-11-23 15:14:24
○ 2026-05-13 00:08:08
○NSdns2.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns3.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns4.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns5.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns6.iidns.com2015-08-21 → 2015-08-21 · 3 obs
● 2015-08-21 13:15:18
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○ 2015-10-31 00:47:16
○ 2026-05-13 00:08:08
○NSdns9.hichina.com2015-10-31 → 2015-11-11 · 5 obs
○ 2015-08-21 13:15:18
● 2015-10-31 00:47:16
● 2015-11-11 21:19:22
○ 2015-11-23 15:14:24
○ 2026-05-13 00:08:08
● 2015-10-31 00:47:16
● 2015-11-11 21:19:22
○ 2015-11-23 15:14:24
○ 2026-05-13 00:08:08
○NSharleigh.ns.cloudflare.com2026-03-17 → 2026-05-13 · 2 obs
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○ 2026-05-13 00:08:08
●NShouston.ns.cloudflare.com2026-05-13 → 2026-05-13 · 3 obs
○ 2026-05-08 04:41:14
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
○NSns1.alidns.com2015-11-23 → 2015-11-23 · 4 obs
○ 2015-11-11 21:19:22
● 2015-11-23 15:14:24
○ 2016-01-03 01:13:04
○ 2026-05-13 00:08:08
● 2015-11-23 15:14:24
○ 2016-01-03 01:13:04
○ 2026-05-13 00:08:08
○NSns1.kouming.net2026-05-08 → 2026-05-08 · 4 obs
○ 2026-03-17 03:56:28
● 2026-05-08 04:41:14
○ 2026-05-13 00:08:06
○ 2026-05-13 00:08:08
● 2026-05-08 04:41:14
○ 2026-05-13 00:08:06
○ 2026-05-13 00:08:08
○NSns1.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSns2.alidns.com2015-11-23 → 2015-11-23 · 4 obs
○ 2015-11-11 21:19:22
● 2015-11-23 15:14:24
○ 2016-01-03 01:13:04
○ 2026-05-13 00:08:08
● 2015-11-23 15:14:24
○ 2016-01-03 01:13:04
○ 2026-05-13 00:08:08
○NSns2.kouming.net2026-05-08 → 2026-05-08 · 4 obs
○ 2026-03-17 03:56:28
● 2026-05-08 04:41:14
○ 2026-05-13 00:08:06
○ 2026-05-13 00:08:08
● 2026-05-08 04:41:14
○ 2026-05-13 00:08:06
○ 2026-05-13 00:08:08
○NSns2.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSns3.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSns4.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSns5.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSns6.myhostadmin.net2016-01-03 → 2016-04-10 · 5 obs
○ 2015-11-23 15:14:24
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○NSpeyton.ns.cloudflare.com2026-03-17 → 2026-05-13 · 2 obs
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
○ 2026-05-13 00:08:08
●NSzariyah.ns.cloudflare.com2026-05-13 → 2026-05-13 · 3 obs
○ 2026-05-08 04:41:14
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
●A104.21.22.2102026-05-13 → 2026-05-13 · 3 obs
○ 2026-03-17 03:56:28
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
○A122.114.50.1912016-01-03 → 2016-04-10 · 4 obs
● 2016-01-03 01:13:04
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
● 2016-04-10 00:52:28
○ 2026-03-17 03:56:28
○ 2026-05-13 00:08:08
●A172.67.207.252026-05-13 → 2026-05-13 · 3 obs
○ 2026-03-17 03:56:28
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
●A2606:4700:3034::6815:16d22026-05-13 → 2026-05-13 · 3 obs
○ 2026-03-17 03:56:28
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
●A2606:4700:3034::ac43:cf192026-05-13 → 2026-05-13 · 3 obs
○ 2026-03-17 03:56:28
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
● 2026-05-13 00:08:06
● 2026-05-13 00:08:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 81ku.com | zariyah.ns.cloudflare.com, houston.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.52
NS records: zariyah.ns.cloudflare.com, houston.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 81ku.com (unsigned zone)
⏱️ Timing
Total: 228ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.22.210, 172.67.207.25 |
| AAAA | 2 | 2606:4700:3034::ac43:cf19, 2606:4700:3034::6815:16d2 |
| NS | 2 | houston.ns.cloudflare.com, zariyah.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | houston.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (zariyah.ns.cloudflare.com, zariyah.ns.cloudflare.com, zariyah.ns.cloudflare.com...)
Analysis
IP Addresses
81ku.com maps to four IP numbers: 2606:4700:3034::6815:16d2, 2606:4700:3034::ac43:cf19, 104.21.22.210 and 172.67.207.25.
Other host names such as allgirlmassage.net, nlupys.cards, tbalert.org, njmth.com and mail.rbhunt.com share IPs with 81ku.com.
Name Servers
Two name servers houston.ns.cloudflare.com and zariyah.ns.cloudflare.com handle the delegation for 81ku.com.
81ku.com shares the same name server setup as other domains, for example ddjx.net, robaine.com, dotks.net, marriagead.com and mche66.com.
81ku.com at least partially shares name servers with other domains, for example cyntv.tv, 6paknutrition.com, jnadesigns.com, progestion.co and logistico.eu.
these name servers are commonly used alongside andy.ns.cloudflare.com name servers.
Host names with six IP numbers:
houston.ns.cloudflare.com points to 2606:4700:58::a29f:2c34, 2803:f800:50::6ca2:c334, 2a06:98c1:50::ac40:2334, 108.162.195.52, 162.159.44.52 and 172.64.35.52.
zariyah.ns.cloudflare.com points to 2606:4700:50::a29f:2648, 2803:f800:50::6ca2:c248, 2a06:98c1:50::ac40:2248, 108.162.194.72, 162.159.38.72 and 172.64.34.72.