topcoder.de - robtex.com
topcoder.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=1784872574 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSns1.sedoparking.com2015-05-11 → 2017-04-05 · 4 obs
● 2017-04-05 01:13:22
○ 2026-02-16 03:24:18
○ 2026-07-24 06:03:06
○NSns2.sedoparking.com2015-05-11 → 2017-04-05 · 4 obs
● 2017-04-05 01:13:22
○ 2026-02-16 03:24:18
○ 2026-07-24 06:03:06
●NSsl1.sedo.com2026-02-16 → 2026-07-24 · 3 obs
● 2026-02-16 03:24:18
● 2026-07-24 06:03:06
●NSsl2.sedo.com2026-02-16 → 2026-07-24 · 3 obs
● 2026-02-16 03:24:18
● 2026-07-24 06:03:06
●MXlocalhost2016-09-13 → 2026-07-24 · 8 obs
● 2016-09-13 03:16:06
● 2026-06-04 16:24:02
○ 2026-06-30 17:17:16
● 2026-07-20 17:45:22
○ 2026-07-23 20:20:54
● 2026-07-24 06:03:04
● 2026-07-24 06:03:06
○MXmail.b-io.co2015-05-11 → 2015-05-11 · 3 obs
○ 2015-10-15 09:19:02
○ 2026-07-24 06:03:06
○MXmail.nickstel.com2015-10-15 → 2016-04-01 · 5 obs
● 2015-10-15 09:19:02
● 2016-04-01 16:56:42
○ 2016-09-13 03:16:06
○ 2026-07-24 06:03:06
○A72.52.4.1192015-05-11 → 2017-04-05 · 4 obs
● 2017-04-05 01:13:22
○ 2026-02-16 03:24:18
○ 2026-07-24 06:03:06
●A91.195.241.2322026-02-16 → 2026-07-24 · 5 obs
● 2026-02-16 03:24:18
○ 2026-07-23 20:20:54
● 2026-07-24 06:03:04
● 2026-07-24 06:03:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| topcoder.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 topcoder.de (unsigned zone)
⏱️ Timing
Total: 3734ms | 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
IP Addresses
topcoder.de has exactly one IP address — 91.195.241.232.
521.de, mx.dress.amsterdam, vipper.de plus two other host names have IP numbers in common with topcoder.de.
Name Servers
topcoder.de is served by two delegated name servers, sl1.sedo.com and sl2.sedo.com.
The name server configuration of topcoder.de is shared with other domains, for instance nrw.virtualservices.eu, icreate.at, abc-group.eu and two others.
topcoder.de partially shares its name servers with domains like futuresight.eu and kuota.eu.
These name servers often co-occur with the name servers verification-cujzgbvstbwsjpnpf88ldf.ns101.verify.hn.
sl1.sedo.com resolves to 91.195.240.173. sl2.sedo.com resolves to 91.195.241.173. Both host names point to a single IP number.
Mail Servers
topcoder.de uses one mail server — localhost.
The mail server setup of topcoder.de matches that of other domains such as securedate.de, olivex.de, mail.radline.com and two others.