alertec.de - robtex.com
alertec.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=1786194630 | ||||||
Subdomains
sso.alertec.de |
Same first word
Similar names
DNS History
13 records (4 active, 9 former)
○NSns1.sedoparking.com2026-03-27 → 2026-08-08 · 2 obs
○ 2026-08-08 13:28:02
○NSns2.sedoparking.com2026-03-27 → 2026-08-08 · 2 obs
○ 2026-08-08 13:28:02
○NSns49.1und1.de2015-07-25 → 2017-09-29 · 4 obs
● 2017-09-29 08:10:46
○ 2026-03-27 02:54:22
○ 2026-08-08 13:28:02
○NSns50.1und1.de2015-07-25 → 2017-09-29 · 4 obs
● 2017-09-29 08:10:46
○ 2026-03-27 02:54:22
○ 2026-08-08 13:28:02
●NSsl1.sedo.com2026-03-27 → 2026-08-08 · 3 obs
● 2026-03-27 02:54:22
● 2026-08-08 13:28:02
●NSsl2.sedo.com2026-03-27 → 2026-08-08 · 3 obs
● 2026-03-27 02:54:22
● 2026-08-08 13:28:02
●MXlocalhost2026-03-27 → 2026-08-08 · 7 obs
● 2026-03-27 02:54:22
○ 2026-04-28 07:19:48
● 2026-05-13 03:08:04
● 2026-06-13 15:04:44
○ 2026-08-02 16:54:52
● 2026-08-08 13:28:02
○MXmx00.kundenserver.de2015-07-25 → 2017-09-29 · 4 obs
● 2017-09-29 08:10:46
○ 2026-03-27 02:54:22
○ 2026-08-08 13:28:02
○MXmx01.kundenserver.de2015-07-25 → 2017-09-29 · 4 obs
● 2017-09-29 08:10:46
○ 2026-03-27 02:54:22
○ 2026-08-08 13:28:02
○A217.160.223.1692016-12-07 → 2017-09-29 · 5 obs
● 2016-12-07 01:50:28
● 2017-09-29 08:10:46
○ 2026-03-27 02:54:22
○ 2026-08-08 13:28:02
○A64.190.63.2222026-03-27 → 2026-08-08 · 2 obs
○ 2026-08-08 13:28:02
○A82.165.51.1632015-07-25 → 2016-04-15 · 4 obs
● 2016-04-15 08:20:26
○ 2016-12-07 01:50:28
○ 2026-08-08 13:28:02
●A91.195.241.2322026-03-27 → 2026-08-08 · 5 obs
● 2026-03-27 02:54:22
● 2026-06-13 15:04:44
○ 2026-08-02 16:54:52
● 2026-08-08 13:28:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| alertec.de | sl2.sedo.com, sl1.sedo.com | - |
✅ Authoritative Response
Server:91.195.241.173
NS records: sl2.sedo.com, sl1.sedo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alertec.de (unsigned zone)
⏱️ Timing
Total: 2607ms | 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
alertec.de serves as the parent of sso.alertec.de.
IP Addresses
alertec.de resolves to just one IP address, 91.195.241.232.
Two other host names, along with mail.stahlbau-rodenbach.de, ns.trukash.com and innovexa.eu, also share IP numbers with alertec.de.
Name Servers
alertec.de uses two name servers for its delegation: sl1.sedo.com and sl2.sedo.com.
alertec.de shares its NS records with other domains, for example streamwave.de, wmbet.de, brandee.de and two others.
sl1.sedo.com directs to 91.195.240.173 and sl2.sedo.com directs to 91.195.241.173; each host name points to exactly one IP number.
Mail Servers
The sole mail server for alertec.de is localhost.
Among the domains sharing a mail server setup with alertec.de are host121.emps.net, mail.muscle-shop.co.uk, mail.go4.fi and two others.