`professorsam.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:c212^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:c69^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.12.105^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.194.18^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`keyla.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26aa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keyla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keyla.ns.cloudflare.com`
		A	108.162.194.170^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	162.159.38.170^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	172.64.34.170^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
NS	`miguel.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c5f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c35f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`miguel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:235f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`miguel.ns.cloudflare.com`
		A	108.162.195.95^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	162.159.44.95^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
		A	172.64.35.95^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`miguel.ns.cloudflare.com`
MX	`route2.mx.cloudflare.net` ⭐
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁹⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁵¹⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.12.105, 172.67.194.18
		IPv6 hints	2606:4700:3031::ac43:c212, 2606:4700:3037::6815:c69
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=253, name=cloudflare-ech.com
SOA	`keyla.ns.cloudflare.com`dns@cloudflare.com serial=2411605023

`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=1786150963

Subdomains

insta.professorsam.de

ticket.professorsam.de

Same first word

professorsam.de

DNS History

11 records (9 active, 2 former)

●NSkeyla.ns.cloudflare.com2026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●NSmiguel.ns.cloudflare.com2026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●MXroute1.mx.cloudflare.net2026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●MXroute2.mx.cloudflare.net2026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●MXroute3.mx.cloudflare.net2026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●A104.21.12.1052026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●A172.67.194.182026-05-12 → 2026-08-08 · 2 obs

● 2026-05-12 12:59:16
● 2026-08-08 01:24:42

●A2606:4700:3031::ac43:c2122026-07-28 → 2026-08-08 · 3 obs

○ 2026-05-12 12:59:16
● 2026-07-28 11:14:06
● 2026-08-08 01:24:42

○A2606:4700:3033::6815:c692026-05-12 → 2026-05-12 · 3 obs

● 2026-05-12 12:59:16
○ 2026-07-28 11:14:06
○ 2026-08-08 01:24:42

○A2606:4700:3034::ac43:c2122026-05-12 → 2026-05-12 · 3 obs

● 2026-05-12 12:59:16
○ 2026-07-28 11:14:06
○ 2026-08-08 01:24:42

●A2606:4700:3037::6815:c692026-07-28 → 2026-08-08 · 3 obs

○ 2026-05-12 12:59:16
● 2026-07-28 11:14:06
● 2026-08-08 01:24:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
professorsam.de	miguel.ns.cloudflare.com, keyla.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.170

NS records: miguel.ns.cloudflare.com, keyla.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for professorsam.de (unsigned zone)

⏱️ Timing

Total: 2538ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.194.18, 104.21.12.105`
AAAA	2	`2606:4700:3037::6815:c69, 2606:4700:3031::ac43:c212`
NS	2	`keyla.ns.cloudflare.com, miguel.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 51), route2.mx.cloudflare.net (pri: 8)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`keyla.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

The parent domain of insta.professorsam.de and ticket.professorsam.de is professorsam.de.

IP Addresses

professorsam.de resolves to four IP addresses: 104.21.12.105, 172.67.194.18, 2606:4700:3031::ac43:c212 and 2606:4700:3037::6815:c69.

Among the host names that share IP numbers with professorsam.de are zoodzoi.com, tryliquid.email, jdisbizkiwsbn.online and two others.

Name Servers

professorsam.de has two authoritative name servers — keyla.ns.cloudflare.com and miguel.ns.cloudflare.com.

professorsam.de has the same name server delegation as a number of other domains, such as vbnev.de, dalber.com, lettokenburn.com and two more.

professorsam.de has at least partial name server overlap with other domains, such as czpiao.com, birminghambears.com, euslotc.com and two others.

It is common to find these name servers paired with the name servers clark.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

keyla.ns.cloudflare.com points to 108.162.194.170, 162.159.38.170, 172.64.34.170 and 3 other IP addresses.

miguel.ns.cloudflare.com points to 108.162.195.95, 162.159.44.95, 172.64.35.95 and 3 other IP addresses.

Mail Servers

professorsam.de has three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

professorsam.de shares at least some of its mail servers with other domains — for example sweetsinocasino.nl, hotelcasino2000.com, mderick.su and two more.

Host names resolving to 6 IP numbers:

route1.mx.cloudflare.net points to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net points to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net points to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

professorsam.de - robtex.com

professorsam.de

de

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`professorsam.de`

`de`