firstclasslearning.de - dns.ninja

firstclasslearning.de

DNSSEC⚠️ Not signed
A91.195.241.232🇩🇪 SEDO91.195.240.0/23 -NET-PI
NSsl1.sedo.com ⭐
A91.195.240.173🇩🇪 SEDO91.195.240.0/23 -NET-PI
NSsl2.sedo.com
A91.195.241.173🇩🇪 SEDO91.195.240.0/23 -NET-PI
MXlocalhost ⭐
TXTv=spf1 -all
SOAsl1.sedo.comhostmaster@sedo.de 2018-05-16 #1

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1785210486

Same first word

firstclasslearning.com
firstclasslearning.ie
firstclasslearning.co.uk
firstclasslearning.de

DNS History

12 records (4 active, 8 former)

20162017201820192020202120222023202420252026NSsl1.sedo.comsl2.sedo.comns.argewebhosting.nlns0.argewebhosting.nlns1.argewebhosting.euns1.cewebserver.nlns2.argewebhosting.comMXlocalhostmail.firstclasslearning.deA91.195.241.232109.234.110.254178.251.196.14
○NSns.argewebhosting.nl2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
○NSns0.argewebhosting.nl2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
○NSns1.argewebhosting.eu2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
○NSns1.cewebserver.nl2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
○NSns2.argewebhosting.com2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
●NSsl1.sedo.com2026-04-09 → 2026-07-28 · 3 obs
○ 2017-06-29 05:05:54
● 2026-04-09 01:46:02
● 2026-07-28 03:59:00
●NSsl2.sedo.com2026-04-09 → 2026-07-28 · 3 obs
○ 2017-06-29 05:05:54
● 2026-04-09 01:46:02
● 2026-07-28 03:59:00
●MXlocalhost2026-04-09 → 2026-07-28 · 3 obs
○ 2017-06-29 05:05:54
● 2026-04-09 01:46:02
● 2026-07-28 03:59:00
○MXmail.firstclasslearning.de2015-12-12 → 2017-06-29 · 4 obs
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
○A109.234.110.2542015-09-06 → 2015-09-07 · 4 obs
● 2015-09-06 13:31:18
● 2015-09-07 16:47:48
○ 2015-12-12 21:11:14
○ 2026-07-28 03:59:00
○A178.251.196.142015-12-12 → 2017-06-29 · 5 obs
○ 2015-09-07 16:47:48
● 2015-12-12 21:11:14
● 2017-06-29 05:05:54
○ 2026-04-09 01:46:02
○ 2026-07-28 03:59:00
●A91.195.241.2322026-04-09 → 2026-07-28 · 3 obs
○ 2017-06-29 05:05:54
● 2026-04-09 01:46:02
● 2026-07-28 03:59:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
firstclasslearning.desl1.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 firstclasslearning.de (unsigned zone)

⏱️ Timing

Total: 752ms | Queries: -

📄 Records

TypeCountSample Data
A191.195.241.232
NS2sl1.sedo.com, sl2.sedo.com
MX1localhost (pri: 0)
TXT1v=spf1 -all
SOA1sl1.sedo.com hostmaster.sedo.de

Analysis

IP Addresses

firstclasslearning.de has exactly one IP address — 91.195.241.232.

lukacovic.com, wakepark.eu, azell.de plus two other host names have IP numbers in common with firstclasslearning.de.

Name Servers

DNS delegation for firstclasslearning.de points to two name servers: sl1.sedo.com and sl2.sedo.com.

The name server configuration of firstclasslearning.de is shared with other domains, for instance montagekran.de, flisch.de, picturesberlin.de and two others.

sl1.sedo.com and sl2.sedo.com each resolve to one IP number: sl1.sedo.com points to 91.195.240.173 and sl2.sedo.com points to 91.195.241.173.

Mail Servers

firstclasslearning.de uses one mail server — localhost.

The mail server setup of firstclasslearning.de matches that of other domains such as hoga.in, www.deutschesgold.de, 79.no and two others.