jclass.de - dns.ninja

`jclass.de`

DNSSEC	⚠️ Not signed
A	5.149.162.49^{🇵🇱 PL-BEYOND-AS5.149.160.0/21 BEYOND Sp. z o.o.}
		PTR	`vmshr80.iai-system.com`
NS	`dns1.iai-system.com` ⭐
		A	5.149.162.237^{🇵🇱 PL-BEYOND-AS5.149.160.0/21 BEYOND Sp. z o.o.}
			PTR	`dns1.iai-system.com`
NS	`dns2.iai-system.com`
		A	5.149.163.173^{🇵🇱 PL-BEYOND-AS5.149.160.0/21 BEYOND Sp. z o.o.}
			PTR	`dns2.iai-system.com`
MX	`jclass-de.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::1^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	52.101.68.21^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
MX	`mail.jclass.de`⁽¹⁾
TXT	`v=spf1 mx ip4:5.149.162.49/32 ip4:52.101.68.32/32 include:spf.iai-sa.com -all`
TXT	`bf572555ddbca6487855b574d23d2c0fc076ab1c34d33379f3cdb04d1fdfaec`
TXT	`61b5093c67d7cb088803c22a178ee24824657f6874644e68a83521ae7e094d2`
TXT	`66e196ce9f7d998f098e0a12751853e81560232fca0053e320506c06e213f7a`
SOA	`dns1.iai-system.com`admin@iai-system.com serial=1781693042

`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.de`dns-operations@denic.de serial=1782556402

📈 Tranco rank: #881,141

Same first word

jclass.com

jclass.de

jclass.nl

Similar names

jscsla.com

sjlcas.com

casjsl.com

jssalc.com

DNS History

17 records (5 active, 12 former)

○NSdns1.epag.net2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 11:33:06
○ 2015-11-10 11:52:50
○ 2026-06-27 10:41:28

●NSdns1.iai-system.com2026-03-08 → 2026-06-27 · 3 obs

○ 2021-09-02 13:33:02
● 2026-03-08 11:20:56
● 2026-06-27 10:41:28

○NSdns2.epag.net2015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 11:33:06
○ 2015-11-10 11:52:50
○ 2026-06-27 10:41:28

●NSdns2.iai-system.com2026-03-08 → 2026-06-27 · 3 obs

○ 2021-09-02 13:33:02
● 2026-03-08 11:20:56
● 2026-06-27 10:41:28

○NSdns200.anycast.me2021-09-02 → 2021-09-02 · 4 obs

○ 2017-01-26 10:54:56
● 2021-09-02 13:33:02
○ 2026-03-08 11:20:56
○ 2026-06-27 10:41:28

○NSns1.jclass.de2015-11-10 → 2017-01-26 · 5 obs

○ 2015-07-04 11:33:06
● 2015-11-10 11:52:50
● 2017-01-26 10:54:56
○ 2021-09-02 13:33:02
○ 2026-06-27 10:41:28

○NSns1.s24.mhost.eu2015-11-10 → 2015-11-10 · 4 obs

○ 2015-07-04 11:33:06
● 2015-11-10 11:52:50
○ 2016-02-06 14:24:30
○ 2026-06-27 10:41:28

○NSns2.jclass.de2016-02-06 → 2017-01-26 · 5 obs

○ 2015-11-10 11:52:50
● 2016-02-06 14:24:30
● 2017-01-26 10:54:56
○ 2021-09-02 13:33:02
○ 2026-06-27 10:41:28

○NSns2.magentohost.waw.pl2015-11-10 → 2015-11-10 · 4 obs

○ 2015-07-04 11:33:06
● 2015-11-10 11:52:50
○ 2016-02-06 14:24:30
○ 2026-06-27 10:41:28

○NSns200.anycast.me2021-09-02 → 2021-09-02 · 4 obs

○ 2017-01-26 10:54:56
● 2021-09-02 13:33:02
○ 2026-03-08 11:20:56
○ 2026-06-27 10:41:28

●MXjclass-de.mail.protection.outlook.com2016-02-06 → 2026-06-27 · 3 obs

○ 2015-11-10 11:52:50
● 2016-02-06 14:24:30
● 2026-06-27 10:41:28

●MXmail.jclass.de2015-11-10 → 2026-06-27 · 4 obs

● 2015-11-10 11:52:50
○ 2016-02-06 14:24:30
● 2021-09-02 13:33:02
● 2026-06-27 10:41:28

○A148.251.0.1782015-11-10 → 2015-11-10 · 4 obs

○ 2015-07-04 11:33:06
● 2015-11-10 11:52:50
○ 2016-02-06 14:24:30
○ 2026-06-27 10:41:28

○A148.251.27.2252016-02-06 → 2017-01-26 · 5 obs

○ 2015-11-10 11:52:50
● 2016-02-06 14:24:30
● 2017-01-26 10:54:56
○ 2021-09-02 13:33:02
○ 2026-06-27 10:41:28

○A185.53.177.202015-07-04 → 2015-07-04 · 3 obs

● 2015-07-04 11:33:06
○ 2015-11-10 11:52:50
○ 2026-06-27 10:41:28

●A5.149.162.492026-03-08 → 2026-06-27 · 3 obs

○ 2021-09-02 13:33:02
● 2026-03-08 11:20:56
● 2026-06-27 10:41:28

○A94.23.167.82021-09-02 → 2021-09-02 · 4 obs

○ 2017-01-26 10:54:56
● 2021-09-02 13:33:02
○ 2026-03-08 11:20:56
○ 2026-06-27 10:41:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
jclass.de	dns2.iai-system.com, dns1.iai-system.com	-

✅ Authoritative Response

Server:5.149.163.173

NS records: dns2.iai-system.com, dns1.iai-system.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jclass.de (unsigned zone)

⏱️ Timing

Total: 948ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.149.162.49`
NS	2	`dns2.iai-system.com, dns1.iai-system.com`
MX	2	`mail.jclass.de (pri: 1), jclass-de.mail.protection.outlook.com (p`
TXT	4	`61b5093c67d7cb088803c22a178ee24824657f68, 66e196ce9f7d998f098e0a12751853e81560232f...`
SOA	1	`dns1.iai-system.com admin.iai-system.com`

Analysis

IP Addresses

jclass.de has exactly one IP address — 5.149.162.49.

jagram.co.uk, ress.pro, abixmusic.pl plus two other host names have IP numbers in common with jclass.de.

Name Servers

jclass.de is delegated to two name servers: dns1.iai-system.com and dns2.iai-system.com.

The name server configuration of jclass.de is shared with other domains, for instance carbone.pl, vm1042.iai-system.com, vmshr54.iai-system.com and two others.

jclass.de partially shares its name servers with domains like vm76-2.iai-system.com and evanda.pl.

dns1.iai-system.com resolves to 5.149.162.237. dns2.iai-system.com resolves to 5.149.163.173. Both host names point to a single IP number.

Mail Servers

jclass.de uses two mail servers, mail.jclass.de and jclass-de.mail.protection.outlook.com.

Hosts with 8 IP addresses each:

jclass-de.mail.protection.outlook.com resolves to 52.101.68.21, 52.101.73.15, 52.101.73.26 and 5 other IP addresses.