`online-learning.center`

DNSSEC	⚠️ Not signed
A	31.214.144.54^{🇩🇪 IP-PROJECTS31.214.144.0/24 IP-Routing by www.ip-projects.de}
		PTR	`mail.edu-pro.com`
NS	`ns3.ip-projects.de` ⭐
		A	2001:8d8:fe:53:217:160:80:161^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
		A	217.160.80.161^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.de`
NS	`ns4.ip-projects.de`
		A	2001:8d8:fe:53:217:160:81:161^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.biz`
		A	217.160.81.161^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-ix2.ui-dns.biz`
MX	`mail.online-learning.center` ⭐
		A	31.214.144.54^{🇩🇪 IP-PROJECTS31.214.144.0/24 IP-Routing by www.ip-projects.de}
			PTR	`mail.edu-pro.com`
TXT	`v=spf1 mx a ~all`
SOA	`ns3.ip-projects.de`peter\@schlatter.decision-factory.com 2025-03-01 #3

`center`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.center` ⭐
	NS	`v0n1.nic.center`
	NS	`v0n2.nic.center`
	NS	`v0n3.nic.center`
	NS	`v2n0.nic.center`
	NS	`v2n1.nic.center`
	SOA	`v0n0.nic.center`hostmaster@donuts.email serial=1778773250

Subdomains

mail.online-learning.center

Same first word

Similar names

on-linelearning.ca

learning-online.in.th

learning-online.com

on-linelearning.org

learning-online.de

learning-online.ru

DNS History

5 records (4 active, 1 former)

●NSns3.ip-projects.de2016-12-11 → 2026-05-14 · 2 obs

● 2016-12-11 00:25:20
● 2026-05-14 16:11:46

●NSns4.ip-projects.de2016-12-11 → 2026-05-14 · 2 obs

● 2016-12-11 00:25:20
● 2026-05-14 16:11:46

●MXmail.online-learning.center2016-12-11 → 2026-05-14 · 2 obs

● 2016-12-11 00:25:20
● 2026-05-14 16:11:46

●A31.214.144.542026-03-22 → 2026-05-14 · 3 obs

○ 2017-06-14 17:38:00
● 2026-03-22 14:42:56
● 2026-05-14 16:11:46

○A84.200.202.752016-12-11 → 2017-06-14 · 4 obs

● 2016-12-11 00:25:20
● 2017-06-14 17:38:00
○ 2026-03-22 14:42:56
○ 2026-05-14 16:11:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
center	v2n0.nic.center, v2n1.nic.center, v0n0.nic.center, v0n2.nic.center...	12 records
online-learning.center	ns3.ip-projects.de, ns4.ip-projects.de	-

✅ Authoritative Response

Server:217.160.81.161

NS records: ns3.ip-projects.de, ns4.ip-projects.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for online-learning.center (unsigned zone)

⏱️ Timing

Total: 576ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`31.214.144.54`
NS	2	`ns3.ip-projects.de, ns4.ip-projects.de`
MX	1	`mail.online-learning.center (pri: 0)`
TXT	1	`v=spf1 mx a ~all`
SOA	1	`ns3.ip-projects.de peter\.schlatter.deci`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n1.nic.center, v2n0.nic.center, v0n3.nic.center...)

Analysis

Hierarchy

online-learning.center is the parent of mail.online-learning.center.

IP Addresses

online-learning.center points to a single IP number: 31.214.144.54.

other host names for instance mail.edu-pro.com, mail.edu-pro.ch, mail.online-learning.center, edu-pro.ch and edu-pro.com share IP numbers with online-learning.center.

Name Servers

online-learning.center is delegated to two name servers: ns3.ip-projects.de and ns4.ip-projects.de.

online-learning.center shares the same name server setup as other domains, for example computerfiwi.de, schmink-tutorials.de, filmreif-heiraten.info, sportcenter-bottrop.de and cheatsboard.com.

online-learning.center partially shares name servers with other domains, for instance nlh-software.de, app-coming.org and knoebel.info.

Host names with two IP numbers:

ns3.ip-projects.de points to 2001:8d8:fe:53:217:160:80:161 and 217.160.80.161

ns4.ip-projects.de points to 2001:8d8:fe:53:217:160:81:161 and 217.160.81.161

Mail Servers

online-learning.center is handled by a single mail server, mail.online-learning.center.

Host name mail.online-learning.center points to IP address 31.214.144.54.

online-learning.center - robtex.com