dou.ac - robtex.com
dou.ac
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:d328🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:5327🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.83.39Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.211.40🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | michelle.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3ac9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0c9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20c9🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| A | 108.162.192.201🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| A | 172.64.32.201🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| A | 173.245.58.201🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | michelle.ns.cloudflare.com | ||||||
| NS | rajeev.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3be0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1e0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21e0🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| A | 108.162.193.224🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| A | 172.64.33.224🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| A | 173.245.59.224🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rajeev.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.83.39, 172.67.211.40 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:d328, 2606:4700:3035::6815:5327 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com | ||||||
| SOA | michelle.ns.cloudflare.comdns@cloudflare.com serial=2399969166 | ||||||
ac
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.ac ⭐ | ||||||
| NS | a2.nic.ac | ||||||
| NS | b0.nic.ac | ||||||
| NS | c0.nic.ac | ||||||
| SOA | a0.nic.achostmaster@donuts.email serial=1776209084 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSmichelle.ns.cloudflare.com2026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
●NSrajeev.ns.cloudflare.com2026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
●A104.21.83.392026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
●A172.67.211.402026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
●A2606:4700:3031::ac43:d3282026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
●A2606:4700:3035::6815:53272026-03-19 → 2026-04-14 · 2 obs
● 2026-04-14 23:43:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ac | a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac | 8 records |
| dou.ac | rajeev.ns.cloudflare.com, michelle.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.201
NS records: rajeev.ns.cloudflare.com, michelle.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dou.ac (unsigned zone)
⏱️ Timing
Total: 514ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.83.39, 172.67.211.40 |
| AAAA | 2 | 2606:4700:3035::6815:5327, 2606:4700:3031::ac43:d328 |
| NS | 2 | michelle.ns.cloudflare.com, rajeev.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | michelle.ns.cloudflare.com dns.cloudflar |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.ac, a2.nic.ac, b0.nic.ac...)
Analysis
IP Addresses
dou.ac maps to four IP numbers: 2606:4700:3031::ac43:d328, 2606:4700:3035::6815:5327, 104.21.83.39 and 172.67.211.40.
Other host names, for instance www.links2share.com, rlc.org.au, ctckco.cn, cfrdp.com and receitasdeliciosas.com share IP numbers with dou.ac.
Name Servers
Two name servers michelle.ns.cloudflare.com and rajeev.ns.cloudflare.com are delegated to dou.ac.
dou.ac uses the same name server configuration as other domains, such as divaescort.online, asxzy.net, medpointmgt.com, storistalker.com and vitalviewnews.com.
dou.ac at least partially shares name servers with other domains such as kmdhautecouture.com, da-xiang.cn, webddv.com, warwickstinson.org and thai7s.com.
These name servers are commonly used with sreeni.ns.cloudflare.com, chris.ns.cloudflare.com, jerome.ns.cloudflare.com and jobs.ns.cloudflare.com.
Host names with six IP numbers: Host name michelle.ns.cloudflare.com points to 2606:4700:50::adf5:3ac9, 2803:f800:50::6ca2:c0c9, 2a06:98c1:50::ac40:20c9, 108.162.192.201, 172.64.32.201 and 173.245.58.201; host name rajeev.ns.cloudflare.com points to 2606:4700:58::adf5:3be0, 2803:f800:50::6ca2:c1e0, 2a06:98c1:50::ac40:21e0, 108.162.193.224, 172.64.33.224 and 173.245.59.224.