`u2co.de`

DNSSEC	🔒 Signed (DS record present)
A	2a00:d0c0:200:0:b9:1a:9c:3b^{🇩🇪 UVENSYS2a00:d0c0:200::/48 JonasPasche}
		PTR	`faye.uberspace.de`
A	185.26.156.60^{🇩🇪 UVENSYS185.26.156.0/24 JonasPasche}
NS	`ns2.inwx.de` ⭐
		A	2001:67c:10b8::104^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
		A	176.97.158.104^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
NS	`ns.inwx.de`
		A	2001:67c:1bc::104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
		A	192.174.68.104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
NS	`ns3.inwx.eu`
		A	2a02:d500::53^{🇩🇪 INWX2a02:d500::/29}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
		A	45.87.158.53^{🇩🇪 INWX45.87.158.0/23}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
MX	`mxext1.mailbox.org` ⭐
		A	2001:67c:2050:104:0:1:25:1^{🇩🇪 HPLS-AS2001:67c:2050::/48}
			PTR	`mx1.mailbox.org`
		A	80.241.60.212^{🇩🇪 HPLS-AS80.241.60.0/24}
			PTR	`mx1.mailbox.org`
MX	`mxext2.mailbox.org` ⭐
		A	2001:67c:2050:104:0:2:25:1^{🇩🇪 HPLS-AS2001:67c:2050::/48}
			PTR	`mx2.mailbox.org`
		A	80.241.60.215^{🇩🇪 HPLS-AS80.241.60.0/24}
			PTR	`mx2.mailbox.org`
MX	`mxext3.mailbox.org`⁽²⁰⁾
		A	2001:67c:2050:104:0:3:25:1^{🇩🇪 HPLS-AS2001:67c:2050::/48}
			PTR	`mx3.mailbox.org`
		A	80.241.60.216^{🇩🇪 HPLS-AS80.241.60.0/24}
			PTR	`mx3.mailbox.org`
TXT	`v=spf1 include:mailbox.org ~all`
SOA	`ns.inwx.de`hostmaster@inwx.de 2021-12-19 #3

`de`

	DNSSEC	⚠️ Not signed
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1776180494

🔒 HSTS Preload (+subdomains)

Same first word

u2co.com

u2co.de

Similar names

oc2u.com

co2u.org

o2cu.com

ocu2.com

co2u.net

cu2o.com

cuo2.com

co2u.info

DNS History

8 records (8 active, 0 former)

●NSns.inwx.de2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●NSns2.inwx.de2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●NSns3.inwx.eu2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●MXmxext1.mailbox.org2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●MXmxext2.mailbox.org2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●MXmxext3.mailbox.org2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●A185.26.156.602026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

●A2a00:d0c0:200:0:b9:1a:9c:3b2026-02-18 → 2026-04-14 · 2 obs

● 2026-02-18 19:40:18
● 2026-04-14 15:49:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
u2co.de	ns.inwx.de, ns2.inwx.de, ns3.inwx.eu	-

✅ Authoritative Response

Server:176.97.158.104

NS records: ns.inwx.de, ns2.inwx.de, ns3.inwx.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1078ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.26.156.60`
AAAA	1	`2a00:d0c0:200:0:b9:1a:9c:3b`
NS	3	`ns3.inwx.eu, ns.inwx.de...`
MX	3	`mxext1.mailbox.org (pri: 10), mxext3.mailbox.org (pri: 20)...`
TXT	1	`v=spf1 include:mailbox.org ~all`
SOA	1	`ns.inwx.de hostmaster.inwx.de`

Analysis

IP Addresses

u2co.de points to two IP numbers: 2a00:d0c0:200:0:b9:1a:9c:3b and 185.26.156.60.

Other host names such as faye.uberspace.de, crap.solutions, sypitzki.de, xwi.net and www.tsv-burgdorf-leichtathletik.de share IP numbers with u2co.de.

Name Servers

u2co.de is delegated to three name servers: ns2.inwx.de, ns.inwx.de and ns3.inwx.eu.

At least part of the name servers for u2co.de are shared with other domains, for instance belz.email, bkg-service.de, dongku.de, mioralini.de and rktbns.de.