sql-kurs.de - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`sql-kurs.de`

DNSSEC	⚠️ Not signed
A	2a03:4000:30:b3a3::14:6643^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
A	91.204.46.160^{🇩🇪 netcup-AS91.204.46.0/24}
NS	`root-dns.netcup.net` ⭐
		A	2a03:4000:0:1::e1e1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`root-dns.netcup.net`
		A	46.38.225.225^{🇩🇪 netcup-AS46.38.225.0/24}
			PTR	`root-dns.netcup.net`
NS	`second-dns.netcup.net`
		A	2a03:4000:2:24b::c7c7^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`second-dns.netcup.net`
		A	37.221.199.199^{🇩🇪 netcup-AS37.221.196.0/22}
			PTR	`second-dns.netcup.net`
NS	`third-dns.netcup.net`
		A	2a03:4001:0:106::3f44^{🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
		A	188.68.63.68^{🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
MX	`mail.sql-kurs.de` ⭐
		A	91.204.46.162^{🇩🇪 netcup-AS91.204.46.0/24}
			PTR	`mx2ea2.netcup.net`
MX	`mx2ea2.netcup.net`⁽⁵⁰⁾
		A	2a03:4000:0:445:28e5:63ff:fec5:1904^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`mx2ea2.netcup.net`
		A	91.204.46.162^{🇩🇪 netcup-AS91.204.46.0/24}
			PTR	`mx2ea2.netcup.net`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2020-09-23 #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.de`dns-operations@denic.de serial=1786888331

Subdomains

mail.sql-kurs.de

mx0.sql-kurs.de

Same first word

sql-kurs.de

DNS History

14 records (7 active, 7 former)

○NSns1.hans.hosteurope.de2015-07-10 → 2015-11-15 · 4 obs

● 2015-07-10 06:39:14
● 2015-11-15 17:17:08
○ 2016-02-06 21:50:36
○ 2026-08-16 14:21:10

○NSns2.hans.hosteurope.de2015-07-10 → 2020-02-20 · 4 obs

● 2015-07-10 06:39:14
● 2020-02-20 09:38:54
○ 2026-02-16 09:24:18
○ 2026-08-16 14:21:10

●NSroot-dns.netcup.net2026-02-16 → 2026-08-16 · 3 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
● 2026-08-16 14:21:10

●NSsecond-dns.netcup.net2026-02-16 → 2026-08-16 · 3 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
● 2026-08-16 14:21:10

●NSthird-dns.netcup.net2026-02-16 → 2026-08-16 · 3 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
● 2026-08-16 14:21:10

○NSwvps46-163-106-232.dedicated.hosteurope.de2016-02-06 → 2020-02-20 · 5 obs

○ 2015-11-15 17:17:08
● 2016-02-06 21:50:36
● 2020-02-20 09:38:54
○ 2026-02-16 09:24:18
○ 2026-08-16 14:21:10

●MXmail.sql-kurs.de2016-02-06 → 2026-08-16 · 6 obs

○ 2015-11-15 17:17:08
● 2016-02-06 21:50:36
● 2020-02-20 09:38:54
○ 2026-07-02 22:15:14
● 2026-07-15 11:53:18
● 2026-08-16 14:21:10

○MXmx0.sql-kurs.de2015-07-10 → 2015-11-15 · 4 obs

● 2015-07-10 06:39:14
● 2015-11-15 17:17:08
○ 2016-02-06 21:50:36
○ 2026-08-16 14:21:10

●MXmx2ea2.netcup.net2026-02-16 → 2026-08-16 · 5 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
○ 2026-07-02 22:15:14
● 2026-07-15 11:53:18
● 2026-08-16 14:21:10

○A2a01:488:42:1000:50ed:8593:2c:b1132015-07-10 → 2015-11-15 · 4 obs

● 2015-07-10 06:39:14
● 2015-11-15 17:17:08
○ 2016-02-06 21:50:36
○ 2026-08-16 14:21:10

●A2a03:4000:30:b3a3::14:66432026-02-16 → 2026-08-16 · 3 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
● 2026-08-16 14:21:10

○A46.163.106.2322016-02-06 → 2020-02-20 · 5 obs

○ 2015-11-15 17:17:08
● 2016-02-06 21:50:36
● 2020-02-20 09:38:54
○ 2026-02-16 09:24:18
○ 2026-08-16 14:21:10

○A80.237.133.1472015-07-10 → 2015-11-15 · 4 obs

● 2015-07-10 06:39:14
● 2015-11-15 17:17:08
○ 2016-02-06 21:50:36
○ 2026-08-16 14:21:10

●A91.204.46.1602026-02-16 → 2026-08-16 · 3 obs

○ 2020-02-20 09:38:54
● 2026-02-16 09:24:18
● 2026-08-16 14:21:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, z.nic.de, f.nic.de	-
sql-kurs.de	third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net	-

✅ Authoritative Response

Server:37.221.199.199

NS records: third-dns.netcup.net, second-dns.netcup.net, root-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sql-kurs.de (unsigned zone)

⏱️ Timing

Total: 2034ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.204.46.160`
AAAA	1	`2a03:4000:30:b3a3::14:6643`
NS	3	`second-dns.netcup.net, third-dns.netcup.net...`
MX	2	`mail.sql-kurs.de (pri: 10), mx2ea2.netcup.net (pri: 50)`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

mail.sql-kurs.de and mx0.sql-kurs.de each fall under sql-kurs.de as their parent domain.

IP Addresses

sql-kurs.de points to the IP addresses 91.204.46.160 and 2a03:4000:30:b3a3::14:6643

Two other host names, along with hive-it.de.the4.de, horakwerz.de and dmm.de, also share IP numbers with sql-kurs.de.

Name Servers

Three name servers are authoritative for sql-kurs.de: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

At least some of sql-kurs.de's name servers are shared with other domains, for example relaht.de, ahs1.de, hausnotruf-moenchengladbach.de and two more.

root-dns.netcup.net resolves to 46.38.225.225 and 2a03:4000:0:1::e1e1. second-dns.netcup.net resolves to 37.221.199.199 and 2a03:4000:2:24b::c7c7. third-dns.netcup.net resolves to 188.68.63.68 and 2a03:4001:0:106::3f44. All three hostnames point to two IP numbers each.

Mail Servers

sql-kurs.de is served by two mail servers, mail.sql-kurs.de and mx2ea2.netcup.net.

There is at least a partial MX overlap between sql-kurs.de and other domains, including glanert.me, kabel-shop24.de, maslon.eu and two others.

Host names that have two IP addresses:

mx2ea2.netcup.net maps to two IP addresses — 91.204.46.162 and 2a03:4000:0:445:28e5:63ff:fec5:1904.

Host names that point to one IP address:

mail.sql-kurs.de points to the IP address 91.204.46.162.

These two host names — mx2ea2.netcup.net and mail.sql-kurs.de — each point to 91.204.46.162 IP addresses.