knowledge-works.de - robtex.com
knowledge-works.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=1777339196 | ||||||
Subdomains
mail.knowledge-works.de |
Same first word
knowledge-works.org |
knowledge-works.co.jp |
knowledge-works.com |
knowledge-works.de |
DNS History
16 records (4 active, 12 former)
○NSns1.domainname.at2016-09-17 → 2017-05-26 · 5 obs
● 2016-09-17 17:43:46
● 2017-05-26 04:24:20
○ 2026-03-26 17:56:54
○ 2026-04-28 01:39:00
○NSns1.redirectdom.com2016-09-17 → 2017-05-26 · 5 obs
● 2016-09-17 17:43:46
● 2017-05-26 04:24:20
○ 2026-03-26 17:56:54
○ 2026-04-28 01:39:00
○NSns1.schwarzmedia-nameserver.de2015-06-28 → 2016-01-17 · 4 obs
● 2016-01-17 06:41:56
○ 2016-04-05 08:47:10
○ 2026-04-28 01:39:00
○NSns2.redirectdom.com2016-09-17 → 2017-05-26 · 5 obs
● 2016-09-17 17:43:46
● 2017-05-26 04:24:20
○ 2026-03-26 17:56:54
○ 2026-04-28 01:39:00
○NSns2.schwarzmedia-nameserver.de2015-06-28 → 2016-01-17 · 4 obs
● 2016-01-17 06:41:56
○ 2016-04-05 08:47:10
○ 2026-04-28 01:39:00
○NSns33.rookdns.com2016-04-05 → 2016-04-05 · 4 obs
● 2016-04-05 08:47:10
○ 2016-09-17 17:43:46
○ 2026-04-28 01:39:00
○NSns34.rookdns.com2016-04-05 → 2016-04-05 · 4 obs
● 2016-04-05 08:47:10
○ 2016-09-17 17:43:46
○ 2026-04-28 01:39:00
●NSsl1.sedo.com2026-03-26 → 2026-04-28 · 3 obs
● 2026-03-26 17:56:54
● 2026-04-28 01:39:00
●NSsl2.sedo.com2026-03-26 → 2026-04-28 · 3 obs
● 2026-03-26 17:56:54
● 2026-04-28 01:39:00
●MXlocalhost2026-03-26 → 2026-04-28 · 3 obs
● 2026-03-26 17:56:54
● 2026-04-28 01:39:00
○MXmail.knowledge-works.de2015-06-28 → 2016-01-17 · 4 obs
● 2016-01-17 06:41:56
○ 2016-04-05 08:47:10
○ 2026-04-28 01:39:00
○MXmail.mxproc.com2016-04-05 → 2016-04-05 · 4 obs
● 2016-04-05 08:47:10
○ 2016-09-17 17:43:46
○ 2026-04-28 01:39:00
○A141.8.224.1752016-04-05 → 2016-04-05 · 4 obs
● 2016-04-05 08:47:10
○ 2016-09-17 17:43:46
○ 2026-04-28 01:39:00
○A176.9.83.2292016-09-17 → 2017-05-26 · 5 obs
● 2016-09-17 17:43:46
● 2017-05-26 04:24:20
○ 2026-03-26 17:56:54
○ 2026-04-28 01:39:00
○A87.106.183.1072015-06-28 → 2016-01-17 · 4 obs
● 2016-01-17 06:41:56
○ 2016-04-05 08:47:10
○ 2026-04-28 01:39:00
●A91.195.241.2322026-03-26 → 2026-04-28 · 3 obs
● 2026-03-26 17:56:54
● 2026-04-28 01:39:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| knowledge-works.de | sl2.sedo.com, sl1.sedo.com | - |
✅ Authoritative Response
Server:91.195.240.173
NS records: sl2.sedo.com, sl1.sedo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledge-works.de (unsigned zone)
⏱️ Timing
Total: 3826ms | 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
knowledge-works.de is a parent of mail.knowledge-works.de.
IP Addresses
knowledge-works.de points to a single IP address: 91.195.241.232.
Other host names such as hostmaster.138-static.reverse.thepatriots.de, caresafe.eu, soer-fron.lessordinary.eu, ipl.co.in and ccmm.eu share IP numbers with knowledge-works.de.
Name Servers
knowledge-works.de is delegated to two name servers: sl1.sedo.com and sl2.sedo.com.
knowledge-works.de uses the same name server setup as other domains, including holz-artikel.de, localfun.de, maxwork.eu, monarda.de and mx0.cogeco.de.
knowledge-works.de shares some name servers with other domains, for example g07.co.uk.
Hostnames with a single IP
sl1.sedo.com resolves to: 91.195.240.173.
sl2.sedo.com resolves to: 91.195.241.173.
Mail Servers
The mail server for knowledge-works.de is localhost.
knowledge-works.de uses the same mail server setup as other domains, for instance techpage.de, sitter.it, yabf.com, yourkitchen.net and postalmail.org.