coolumbus.de - robtex.com
coolumbus.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.195.241.232🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| PTR | ip-91-195-241-232.defastlink.net | ||||||
| NS | sl1.sedo.com ⭐ | ||||||
| A | 91.195.240.173🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| PTR | ip-91-195-240-173.defastlink.net | ||||||
| NS | sl2.sedo.com | ||||||
| A | 91.195.241.173🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| PTR | ip-91-195-241-173.defastlink.net | ||||||
| MX | localhost ⭐ 🔒 | ||||||
| A | ::1 | ||||||
| A | 127.0.0.1 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | sl1.sedo.comhostmaster@sedo.de 2018-05-16 #1 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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.dedns-operations@denic.de serial=1773553752 | ||||||
Subdomains
mail.coolumbus.de |
Same first word
coolumbus.de |
coolumbus.net |
Similar names
DNS History
14 records (4 active, 10 former)
○NSns1.domainname.at2015-06-30 → 2016-02-05 · 4 obs
● 2016-02-05 05:14:00
○ 2016-07-07 09:44:40
○ 2026-03-24 10:58:22
○NSns1.redirectdom.com2015-06-30 → 2016-02-05 · 4 obs
● 2016-02-05 05:14:00
○ 2016-07-07 09:44:40
○ 2026-03-24 10:58:22
○NSns2.redirectdom.com2015-06-30 → 2016-02-05 · 4 obs
● 2016-02-05 05:14:00
○ 2016-07-07 09:44:40
○ 2026-03-24 10:58:22
○NSroot-dns.netcup.net2020-01-03 → 2020-01-03 · 3 obs
● 2020-01-03 13:46:30
○ 2026-03-24 10:58:22
○NSsecond-dns.netcup.net2020-01-03 → 2020-01-03 · 3 obs
● 2020-01-03 13:46:30
○ 2026-03-24 10:58:22
○NSthird-dns.netcup.net2020-01-03 → 2020-01-03 · 3 obs
● 2020-01-03 13:46:30
○ 2026-03-24 10:58:22
●MXlocalhost2026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 10:58:22
○MXmail.coolumbus.de2020-01-03 → 2020-01-03 · 2 obs
○ 2026-03-24 10:58:22
○A176.9.83.2292015-06-30 → 2016-02-05 · 4 obs
● 2016-02-05 05:14:00
○ 2016-07-07 09:44:40
○ 2026-03-24 10:58:22
○A185.244.194.2372020-01-03 → 2020-01-03 · 3 obs
● 2020-01-03 13:46:30
○ 2026-03-24 10:58:22
○A2a03:4000:27:51e::12020-01-03 → 2020-01-03 · 3 obs
● 2020-01-03 13:46:30
○ 2026-03-24 10:58:22
●A91.195.241.2322026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 10:58:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, a.nic.de, z.nic.de | - |
| coolumbus.de | sl1.sedo.com, sl2.sedo.com | - |
✅ Authoritative Response
Server:91.195.241.173
NS records: sl1.sedo.com, sl2.sedo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coolumbus.de (unsigned zone)
⏱️ Timing
Total: 740ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.195.241.232 |
| NS | 2 | sl1.sedo.com, sl2.sedo.com |
| MX | 1 | localhost (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | sl1.sedo.com hostmaster.sedo.de |
Analysis
Hierarchy
The parent of mail.coolumbus.de is coolumbus.de.
IP Addresses
coolumbus.de points to a single IP address: 91.195.241.232.
Other host names such as clicktolearn.de, uzumaki.eu, erds.eu, webboss.eu and mx.mx.worktogo.de share IPs with coolumbus.de.
Name Servers
Two name servers sl1.sedo.com and sl2.sedo.com handle the delegation for coolumbus.de.
coolumbus.de shares the same name server setup as other domains, for example relaxworld.de, mail.swsc.de, www.gwdata.com, s14.srv14.ffm.w-united.de and onlinejourney.de.
Host names with one IP number:
sl1.sedo.com points to 91.195.240.173; sl2.sedo.com points to 91.195.241.173.
Mail Servers
The localhost mail server handles coolumbus.de.
coolumbus.de shares the same mail server setup as other domains, including www.yl-i.com, www.freedirectory.io, value-engineering.com, embutido.es and www.motorrent.de.