`o2o.at`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ba13^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:5427^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.84.39^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.19^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`colin.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`colin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`colin.ns.cloudflare.com`
		A	108.162.195.75^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	162.159.44.75^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
		A	172.64.35.75^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`colin.ns.cloudflare.com`
NS	`nancy.ns.cloudflare.com`
		A	2606:4700:50::a29f:2654^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nancy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c254^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nancy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2254^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nancy.ns.cloudflare.com`
		A	108.162.194.84^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nancy.ns.cloudflare.com`
		A	162.159.38.84^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nancy.ns.cloudflare.com`
		A	172.64.34.84^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nancy.ns.cloudflare.com`
MX	`mail.o2o.at` ⭐
		A	159.195.56.162^{🇩🇰 netcup-AS159.195.56.0/22}
			PTR	`v2202511223189410015.luckysrv.de`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.84.39, 172.67.186.19
		IPv6 hints	2606:4700:3031::ac43:ba13, 2606:4700:3035::6815:5427
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=13, name=cloudflare-ech.com
SOA	`colin.ns.cloudflare.com`dns@cloudflare.com serial=2411203980

`at`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns.nic.at` ⭐
	NS	`d.ns.at`
	NS	`j.ns.at`
	NS	`n.ns.at`
	NS	`ns1.univie.ac.at`
	NS	`ns2.univie.ac.at`
	NS	`r.ns.at`
	NS	`u.ns.at`
	SOA	`dns.nic.at`domain-admin@univie.ac.at serial=1785996003

Subdomains

mail.o2o.at

Same first word

o2o.us

o2o.me

o2o.ru

o2o.by

o2o.info

o2o.pl

o2o.de

o2o.nl

o2o.ca

o2o.biz

o2o.at

o2o.fr

o2o.ir

o2o.es

o2o.com

o2o.net

o2o.mobi

o2o.ltd

o2o.be

o2o.com.cn

o2o.dk

o2o.world

o2o.it

o2o.pw

o2o.ph

o2o.limited

o2o.gifts

o2o.my

o2o.co.za

o2o.to

o2o.com.br

o2o.co

o2o.gallery

o2o.cn

o2o.digital

Similar names

oo2.es

oo2.de

oo2.xyz

oo2.com

oo2.pl

oo2.cz

2oo.bike

oo2.be

oo2.dk

2oo.com

2oo.de

oo2.org

2oo.ch

oo2.ru

2oo.net

oo2.fr

2oo.org

2oo.me

2oo.pl

oo2.cn

oo2.info

2oo.com.cn

oo2.net

2oo.ru

2oo.xyz

DNS History

16 records (7 active, 9 former)

●NScolin.ns.cloudflare.com2026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

●NSnancy.ns.cloudflare.com2026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

○NSns.udag.de2015-11-22 → 2016-07-06 · 5 obs

○ 2015-06-27 09:03:54
● 2015-11-22 00:36:18
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

○NSns.udag.net2015-11-22 → 2016-07-06 · 5 obs

○ 2015-06-27 09:03:54
● 2015-11-22 00:36:18
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

○NSns.udag.org2015-11-22 → 2016-07-06 · 5 obs

○ 2015-06-27 09:03:54
● 2015-11-22 00:36:18
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

○NSns.udagdns.de2015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 09:03:54
○ 2015-11-22 00:36:18
○ 2026-08-06 06:45:16

○NSns.udagdns.net2015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 09:03:54
○ 2015-11-22 00:36:18
○ 2026-08-06 06:45:16

●MXmail.o2o.at2026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

○MXmx00.udag.de2015-06-27 → 2016-07-06 · 4 obs

● 2015-06-27 09:03:54
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

○MXmx01.udag.de2015-06-27 → 2016-07-06 · 4 obs

● 2015-06-27 09:03:54
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

●A104.21.84.392026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

●A172.67.186.192026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

●A2606:4700:3031::ac43:ba132026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

●A2606:4700:3035::6815:54272026-07-04 → 2026-08-06 · 3 obs

○ 2016-07-06 04:32:50
● 2026-07-04 06:22:30
● 2026-08-06 06:45:16

○A89.31.143.12015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 09:03:54
○ 2015-11-22 00:36:18
○ 2026-08-06 06:45:16

○A89.31.143.162015-11-22 → 2016-07-06 · 5 obs

○ 2015-06-27 09:03:54
● 2015-11-22 00:36:18
● 2016-07-06 04:32:50
○ 2026-07-04 06:22:30
○ 2026-08-06 06:45:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
at	n.ns.at, r.ns.at, u.ns.at, ns1.univie.ac.at...	-
o2o.at	colin.ns.cloudflare.com, nancy.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.75

NS records: colin.ns.cloudflare.com, nancy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for o2o.at (unsigned zone)

⏱️ Timing

Total: 561ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.84.39, 172.67.186.19`
AAAA	2	`2606:4700:3035::6815:5427, 2606:4700:3031::ac43:ba13`
NS	2	`colin.ns.cloudflare.com, nancy.ns.cloudflare.com`
MX	1	`mail.o2o.at (pri: 10)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`colin.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

o2o.at is the parent zone for mail.o2o.at.

IP Addresses

o2o.at resolves to four IP addresses: 104.21.84.39, 172.67.186.19, 2606:4700:3031::ac43:ba13 and 2606:4700:3035::6815:5427.

Additional host names — xrtzf.com, 0dd0.net, a638.phobos.mylikes.com and two others — share IP numbers with o2o.at.

Name Servers

o2o.at uses two name servers for its delegation: colin.ns.cloudflare.com and nancy.ns.cloudflare.com.

o2o.at shares its name server setup with other domains, including actoreselectorales.com, lincolncomo.gov, resit.my and two others.

o2o.at partially shares its NS delegation with several other domains, including wade-china5e.com, oefentherapie.be, southgeorgiaandthesouthsandwichislands.com and two others.

These name servers are frequently paired with the name servers amanda.ns.cloudflare.com, noor.ns.cloudflare.com, rudy.ns.cloudflare.com and two others.

Host names with 6 IP numbers:

Hostname colin.ns.cloudflare.com directs to 108.162.195.75, 162.159.44.75 and 172.64.35.75 along with 3 other IP addresses.

Hostname nancy.ns.cloudflare.com directs to 108.162.194.84, 162.159.38.84 and 172.64.34.84 along with 3 other IP addresses.

Mail Servers

o2o.at has one mail server: mail.o2o.at.

mail.o2o.at directs to just one IP number, 159.195.56.162.

o2o.at - robtex.com

o2o.at

at

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`o2o.at`

`at`