back-door.de - robtex.com
back-door.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.195.241.232🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| NS | sl1.sedo.com ⭐ | ||||||
| A | 91.195.240.173🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| NS | sl2.sedo.com | ||||||
| A | 91.195.241.173🇩🇪 SEDO91.195.240.0/23 -NET-PI | ||||||
| MX | localhost ⭐ | ||||||
| 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=1775833254 | ||||||
Subdomains
mail.back-door.de |
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
○NSns1.sedoparking.com2015-08-06 → 2015-11-23 · 4 obs
● 2015-11-23 12:25:20
○ 2016-02-25 10:27:34
○ 2026-04-10 15:10:00
○NSns2.sedoparking.com2015-08-06 → 2015-11-23 · 4 obs
● 2015-11-23 12:25:20
○ 2016-02-25 10:27:34
○ 2026-04-10 15:10:00
●NSsl1.sedo.com2026-04-10 → 2026-04-10 · 3 obs
● 2026-04-10 15:09:58
● 2026-04-10 15:10:00
●NSsl2.sedo.com2026-04-10 → 2026-04-10 · 3 obs
● 2026-04-10 15:09:58
● 2026-04-10 15:10:00
●MXlocalhost2026-04-10 → 2026-04-10 · 3 obs
● 2026-04-10 15:09:58
● 2026-04-10 15:10:00
○MXmail.nickstel.com2015-08-06 → 2015-11-23 · 4 obs
● 2015-11-23 12:25:20
○ 2016-02-25 10:27:34
○ 2026-04-10 15:10:00
○A72.52.4.912015-08-06 → 2015-11-23 · 4 obs
● 2015-11-23 12:25:20
○ 2016-02-25 10:27:34
○ 2026-04-10 15:10:00
●A91.195.241.2322026-04-10 → 2026-04-10 · 3 obs
● 2026-04-10 15:09:58
● 2026-04-10 15:10:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| back-door.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 back-door.de (unsigned zone)
⏱️ Timing
Total: 809ms | 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
back-door.de is the parent of mail.back-door.de.
IP Addresses
back-door.de resolves to one IP number: 91.195.241.232.
other host names including ftpperso.free.frl, pc-total.de, mail.book-flights.com, evene.eu and co.makeup-extras.collections.nz share IP numbers with back-door.de.
Name Servers
back-door.de is delegated to two name servers sl1.sedo.com and sl2.sedo.com.
back-door.de shares the same name server setup as other domains, for instance 477.de, mail.mail-allianz.de, ns1.serail.net, geotechnique.de and *.appzone.eu.
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
back-door.de is handled by a single mail server, localhost.
back-door.de shares the same mail server setup as other domains, for instance planmy.de, fresh.ir, www.hairy.ch, bbrr.eu and itrace.de.