co2u.net - robtex.com
co2u.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:8d8:100f:f000::200🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910 | ||||||
| PTR | 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com | ||||||
| A | 217.160.0.21🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3 | ||||||
| NS | docks03.rzone.de ⭐ | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:3🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks03.rzone.de | ||||||
| A | 217.160.80.130🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks03.rzone.de | ||||||
| NS | shades19.rzone.de | ||||||
| A | 2607:f1c0:fe:53:185:132:34:146🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades19.rzone.de | ||||||
| A | 185.132.34.146🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades19.rzone.de | ||||||
| MX | smtpin.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| SOA | docks03.rzone.dehostmaster@strato-rz.de 2020-07-03 #28 | ||||||
net
| 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=1776154832 | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSdocks03.rzone.de2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 21:31:50
● 2026-04-14 08:24:00
○NSns1.amenworld.com2015-08-12 → 2017-10-03 · 4 obs
● 2017-10-03 17:38:02
○ 2026-04-04 21:31:50
○ 2026-04-14 08:24:00
○NSns2.amenworld.com2015-08-12 → 2017-10-03 · 4 obs
● 2017-10-03 17:38:02
○ 2026-04-04 21:31:50
○ 2026-04-14 08:24:00
●NSshades19.rzone.de2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 21:31:50
● 2026-04-14 08:24:00
○MXmail-fr.securemail.pro2015-08-12 → 2017-10-03 · 4 obs
● 2017-10-03 17:38:02
○ 2026-04-04 21:31:50
○ 2026-04-14 08:24:00
●MXsmtpin.rzone.de2026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 21:31:50
● 2026-04-14 08:24:00
●A2001:8d8:100f:f000::2002026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 21:31:50
● 2026-04-14 08:24:00
●A217.160.0.212026-04-04 → 2026-04-14 · 3 obs
● 2026-04-04 21:31:50
● 2026-04-14 08:24:00
○A81.88.57.682015-08-12 → 2017-10-03 · 4 obs
● 2017-10-03 17:38:02
○ 2026-04-04 21:31:50
○ 2026-04-14 08:24:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | g.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net... | - |
| co2u.net | docks03.rzone.de, shades19.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.130
NS records: docks03.rzone.de, shades19.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for co2u.net (unsigned zone)
⏱️ Timing
Total: 550ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.21 |
| AAAA | 1 | 2001:8d8:100f:f000::200 |
| NS | 2 | shades19.rzone.de, docks03.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| SOA | 1 | docks03.rzone.de hostmaster.strato-rz.de |
Analysis
IP Addresses
co2u.net resolves to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.21.
Other host names, for instance thepetshrink.com, ubosprey.com, close-protection-system.de, www.bac-wolfenbuettel.de and praxiserfolg.club share IP numbers with co2u.net.
Name Servers
co2u.net has two name servers: docks03.rzone.de and shades19.rzone.de.
co2u.net shares the same name server setup as other domains, for example argenturno.com, integral-ggmbh.de, calsow.com, online-secure02.com and katjaschulz.com.
co2u.net shares some name servers with other domains, for example tracht-xxl.de, profi-arbeitsschutz.de, la-beusch.de, karin-dobler.de and stuttgarter-stadtgeschichte.de.
these name servers are often used with shades15.rzone.de, docks06.rzone.de, shades10.rzone.de, shades14.rzone.de, shades01.rzone.de, docks16.rzone.de, shades05.rzone.de, shades17.rzone.de, shades07.rzone.de and shades09.rzone.de.
Host names with two IP numbers:
docks03.rzone.de points to: 2001:8d8:fe:53:5747:2a74:d:3 and 217.160.80.130; shades19.rzone.de points to: 2607:f1c0:fe:53:185:132:34:146 and 185.132.34.146.
Mail Servers
co2u.net is handled by a single mail server, smtpin.rzone.de.
co2u.net shares the mail server setup with other domains, for example agradblue.de, erol-art.de, untergang.de, ets24.net and schwefelfrei.eu.
smtpin.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.