classwork.de - dns.ninja
classwork.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=1781921280 | ||||||
Same first word
classwork.xyz |
classwork.com |
classwork.net |
classwork.in |
classwork.school |
classwork.co |
classwork.co.uk |
classwork.org |
classwork.in.ua |
classwork.ru |
classwork.org.in |
classwork.de |
classwork.ir |
Similar names
DNS History
10 records (4 active, 6 former)
○NSed.ns.cloudflare.com2015-11-09 → 2017-03-22 · 4 obs
● 2017-03-22 05:18:58
○ 2026-06-04 08:06:54
○ 2026-06-20 02:35:00
●NSsl1.sedo.com2026-06-04 → 2026-06-20 · 3 obs
● 2026-06-04 08:06:54
● 2026-06-20 02:35:00
●NSsl2.sedo.com2026-06-04 → 2026-06-20 · 3 obs
● 2026-06-04 08:06:54
● 2026-06-20 02:35:00
○NSvera.ns.cloudflare.com2015-11-09 → 2017-03-22 · 4 obs
● 2017-03-22 05:18:58
○ 2026-06-04 08:06:54
○ 2026-06-20 02:35:00
○MXgw1.landsberied.schukai.net2016-06-20 → 2017-03-22 · 5 obs
● 2016-06-20 09:57:32
● 2017-03-22 05:18:58
○ 2026-06-04 08:06:54
○ 2026-06-20 02:35:00
○MXgw2.landsberied.schukai.net2016-06-20 → 2017-03-22 · 5 obs
● 2016-06-20 09:57:32
● 2017-03-22 05:18:58
○ 2026-06-04 08:06:54
○ 2026-06-20 02:35:00
●MXlocalhost2026-06-04 → 2026-06-20 · 3 obs
● 2026-06-04 08:06:54
● 2026-06-20 02:35:00
○MXmail.schukai.com2015-11-09 → 2016-01-24 · 4 obs
● 2016-01-24 09:29:14
○ 2016-06-20 09:57:32
○ 2026-06-20 02:35:00
○MXmail.schukai.de2015-11-09 → 2016-01-24 · 4 obs
● 2016-01-24 09:29:14
○ 2016-06-20 09:57:32
○ 2026-06-20 02:35:00
●A91.195.241.2322026-06-04 → 2026-06-20 · 2 obs
● 2026-06-20 02:35:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| classwork.de | sl1.sedo.com, sl2.sedo.com | - |
✅ Authoritative Response
Server:91.195.240.173
NS records: sl1.sedo.com, sl2.sedo.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classwork.de (unsigned zone)
⏱️ Timing
Total: 3766ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.195.241.232 |
| NS | 2 | sl2.sedo.com, sl1.sedo.com |
| MX | 1 | localhost (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | sl1.sedo.com hostmaster.sedo.de |
Analysis
IP Addresses
classwork.de directs to one IP number, which is 91.195.241.232.
Among the host names that share IP numbers with classwork.de are onthehouse.eu, mail.724.eu, redbill.de and two others.
Name Servers
Two name servers handle the delegation for classwork.de: sl1.sedo.com and sl2.sedo.com.
classwork.de has the same name server delegation as a number of other domains, such as crams.de, rbz.co, tropicalfish.eu and two more.
Both sl1.sedo.com and sl2.sedo.com have a single IP address each — sl1.sedo.com resolves to 91.195.240.173 while sl2.sedo.com resolves to 91.195.241.173.
Mail Servers
classwork.de routes its mail through a single mail server, localhost.
classwork.de has the same mail server arrangement as a number of other domains, for example mail.modul4.de, www.haar-uitval.com, digitalroot.eu and two more.