🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`python-courses.com`

DNSSEC	⚠️ Not signed
A	2a01:4f8:171:286f::4^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		PTR	`phoenix.tux4all.net`
A	138.201.17.115^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
NS	`nsa6.schlundtech.de` ⭐
NS	`nsb6.schlundtech.de`
NS	`nsc6.schlundtech.de`
NS	`nsd6.schlundtech.de`
MX	`www.tux4all.net` ⭐
		A	2a01:4f8:171:286f::4^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`phoenix.tux4all.net`
		A	138.201.17.115^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
			PTR	`phoenix.tux4all.net`
SOA	`nsa6.schlundtech.de`direct@bklein.de 2023-04-12 #0

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1788063395

Same first word

python-courses.eu

python-courses.com

Previous names

Next names

DNS History

8 records (7 active, 1 former)

●NSnsa6.schlundtech.de2015-06-23 → 2026-08-30 · 2 obs

● 2015-06-23 08:48:50
● 2026-08-30 04:19:14

●NSnsb6.schlundtech.de2015-06-23 → 2026-08-30 · 2 obs

● 2015-06-23 08:48:50
● 2026-08-30 04:19:14

●NSnsc6.schlundtech.de2015-06-23 → 2026-08-30 · 2 obs

● 2015-06-23 08:48:50
● 2026-08-30 04:19:14

●NSnsd6.schlundtech.de2015-06-23 → 2026-08-30 · 2 obs

● 2015-06-23 08:48:50
● 2026-08-30 04:19:14

●MXwww.tux4all.net2026-08-20 → 2026-08-30 · 2 obs

● 2026-08-20 04:47:00
● 2026-08-30 04:19:14

●A138.201.17.1152026-08-20 → 2026-08-30 · 3 obs

○ 2016-12-25 14:10:20
● 2026-08-20 04:47:00
● 2026-08-30 04:19:14

○A188.40.45.222015-06-23 → 2016-12-25 · 4 obs

● 2015-06-23 08:48:50
● 2016-12-25 14:10:20
○ 2026-08-20 04:47:00
○ 2026-08-30 04:19:14

●A2a01:4f8:171:286f::42026-08-20 → 2026-08-30 · 3 obs

○ 2016-12-25 14:10:20
● 2026-08-20 04:47:00
● 2026-08-30 04:19:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net...	-
python-courses.com	nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de, nsd6.schlundtech.de	-

✅ Authoritative Response

Server:185.132.35.227

NS records: nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de, nsd6.schlundtech.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for python-courses.com (unsigned zone)

⏱️ Timing

Total: 520ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`138.201.17.115`
AAAA	1	`2a01:4f8:171:286f::4`
NS	4	`nsa6.schlundtech.de, nsb6.schlundtech.de...`
MX	1	`www.tux4all.net (pri: 0)`
SOA	1	`nsa6.schlundtech.de direct.bklein.de`

Analysis

IP Addresses

python-courses.com has two IP addresses: 138.201.17.115 and 2a01:4f8:171:286f::4

Two other host names, along with www.galois-group.net, linux-schulung.org and rust-kurs.de, also share IP numbers with python-courses.com.

Name Servers

The NS records for python-courses.com point to four name servers: nsa6.schlundtech.de, nsb6.schlundtech.de, nsc6.schlundtech.de and nsd6.schlundtech.de.

The name servers of python-courses.com overlap at least partially with those of other domains — among them weltsprachen.de, selections.de, eurokrallen.de and two more.

Mail Servers

The sole mail server for python-courses.com is www.tux4all.net.

Among the domains sharing a mail server setup with python-courses.com are bewerbung-hilfe.net, aikikai-zuerich.ch, lake-linux-schule.de and two others.

www.tux4all.net resolves to two IP numbers — 138.201.17.115 and 2a01:4f8:171:286f::4.

python-courses.com - robtex.com