3open.icu - robtex.com
3open.icu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:14ab🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:c13c🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.20.171Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.193.60🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | rachel.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3ad7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0d7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20d7🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| A | 108.162.192.215🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| A | 172.64.32.215🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| A | 173.245.58.215🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rachel.ns.cloudflare.com | ||||||
| NS | yichun.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bf8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1f8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21f8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| A | 108.162.193.248🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| A | 172.64.33.248🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| A | 173.245.59.248🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | yichun.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.20.171, 172.67.193.60 | ||||||
| IPv6 hints | 2606:4700:3032::6815:14ab, 2606:4700:3037::ac43:c13c | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=181, name=cloudflare-ech.com | ||||||
| SOA | rachel.ns.cloudflare.comdns@cloudflare.com serial=2401900650 | ||||||
icu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.nic.icu | ||||||
| NS | b.nic.icu | ||||||
| NS | c.nic.icu | ||||||
| NS | d.nic.icu | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1778699761 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSrachel.ns.cloudflare.com2026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
●NSyichun.ns.cloudflare.com2026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
●A104.21.20.1712026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
●A172.67.193.602026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
●A2606:4700:3032::6815:14ab2026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
●A2606:4700:3037::ac43:c13c2026-05-12 → 2026-05-13 · 2 obs
● 2026-05-13 19:37:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| icu | a.nic.icu, b.nic.icu, c.nic.icu, d.nic.icu | 8 records |
| 3open.icu | rachel.ns.cloudflare.com, yichun.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.32.215
NS records: rachel.ns.cloudflare.com, yichun.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 3open.icu (unsigned zone)
⏱️ Timing
Total: 4159ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.20.171, 172.67.193.60 |
| AAAA | 2 | 2606:4700:3037::ac43:c13c, 2606:4700:3032::6815:14ab |
| NS | 2 | rachel.ns.cloudflare.com, yichun.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | rachel.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.nic.icu, a.nic.icu, b.nic.icu...)
Analysis
IP Addresses
3open.icu maps to four IP numbers: 2606:4700:3032::6815:14ab, 2606:4700:3037::ac43:c13c, 104.21.20.171 and 172.67.193.60.
Other host names such as winebistrolemariage.com, efspet.com, clanforen.de, theecommmanager.com and lofi.so share IPs with 3open.icu.
Name Servers
Two name servers rachel.ns.cloudflare.com and yichun.ns.cloudflare.com handle the delegation for 3open.icu.
3open.icu shares the same name server setup as other domains, for example vinyltech.com.tw, chatui8.com, glowend.xyz, tpbay.site and tempinbox.xyz.
3open.icu at least partially shares name servers with other domains, for example absolut777.org, brand-besar.online, e-zigi.de, emailcommand.com and seasonmu.com.
Host names with six IP numbers:
rachel.ns.cloudflare.com points to 2606:4700:50::adf5:3ad7, 2803:f800:50::6ca2:c0d7, 2a06:98c1:50::ac40:20d7, 108.162.192.215, 172.64.32.215 and 173.245.58.215.
yichun.ns.cloudflare.com points to 2606:4700:58::adf5:3bf8, 2803:f800:50::6ca2:c1f8, 2a06:98c1:50::ac40:21f8, 108.162.193.248, 172.64.33.248 and 173.245.59.248.