`mail.oncroskill.de`

DNSSEC	⚠️ Not signed
A	194.164.54.52^{🇬🇧 IONOS-AS194.164.48.0/20 IONOS SE}
		PTR	`mail.oncroskill.de`

`oncroskill.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:dd72^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2b3f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.63^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.114^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alexa.ns.cloudflare.com` ⭐
NS	`peyton.ns.cloudflare.com`
MX	`mail.oncroskill.de` ⭐
TXT	`google-site-verification=uvAVJoK0zyCOhXzYOxwvWHlzeZVFN6eYyzLgd9K19wk`
TXT	`google-site-verification=xvmwfFCvMhSmSt4EhRza09GJlyg7WmZKUci8kSjnJ7k`
TXT	`v=spf1 mx a ip4:194.164.54.52 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.63, 172.67.221.114
		IPv6 hints	2606:4700:3035::ac43:dd72, 2606:4700:3037::6815:2b3f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=81, name=cloudflare-ech.com
SOA	`alexa.ns.cloudflare.com`dns@cloudflare.com serial=2401747070

PTR for

52.54.164.194.in-addr.arpa

MX for

oncroskill.de

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DNS History

1 record (1 active, 0 former)

●A194.164.54.522026-04-24 → 2026-04-24 · 2 obs

● 2026-04-24 11:20:24
● 2026-04-24 21:31:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, z.nic.de, f.nic.de	-
oncroskill.de	alexa.ns.cloudflare.com, peyton.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.215

NS records: alexa.ns.cloudflare.com, peyton.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for oncroskill.de (unsigned zone)

⏱️ Timing

Total: 704ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`194.164.54.52`

Analysis

Mail Server Role

mail.oncroskill.de is the mail server for oncroskill.de.

IP Addresses

mail.oncroskill.de points to a single IP number: 194.164.54.52.

Other host names, for instance onbildung.de, sylive.com, knowledge-pills.de and ip194-164-54-52.pbiaas.com share IP numbers with mail.oncroskill.de.

mail.oncroskill.de - robtex.com