`felixoswald.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:d838^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2356^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.35.86^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.216.56^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`anirban.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b40^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anirban.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c140^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`anirban.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2140^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`anirban.ns.cloudflare.com`
		A	108.162.193.64^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anirban.ns.cloudflare.com`
		A	172.64.33.64^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anirban.ns.cloudflare.com`
		A	173.245.59.64^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`anirban.ns.cloudflare.com`
NS	`asa.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`asa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`asa.ns.cloudflare.com`
		A	108.162.192.246^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	172.64.32.246^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	173.245.58.246^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
MX	`w00585a8.kasserver.com` ⭐
		A	85.13.155.10^{🇩🇪 NMM-AS85.13.155.0/24 Neue Medien Muennich}
			PTR	`dd24708.kasserver.com`
TXT	`google-site-verification=KKXum84sUjvknxNiYV_Ek80bKh1NxDfl8IUwDhKItNQ`
TXT	`v=spf1 a mx include:spf.kasserver.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.35.86, 172.67.216.56
		IPv6 hints	2606:4700:3032::ac43:d838, 2606:4700:3037::6815:2356
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=99, name=cloudflare-ech.com
SOA	`anirban.ns.cloudflare.com`dns@cloudflare.com serial=2408817826

`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=1785907716

Subdomains

mail.felixoswald.de

Same first word

felixoswald.de

DNS History

12 records (7 active, 5 former)

●NSanirban.ns.cloudflare.com2026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

●NSasa.ns.cloudflare.com2026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

○NSns5.kasserver.com2015-06-19 → 2020-03-03 · 4 obs

● 2015-06-19 06:21:36
● 2020-03-03 11:00:38
○ 2026-06-29 17:37:02
○ 2026-08-05 06:03:42

○NSns6.kasserver.com2015-06-19 → 2020-03-03 · 4 obs

● 2015-06-19 06:21:36
● 2020-03-03 11:00:38
○ 2026-06-29 17:37:02
○ 2026-08-05 06:03:42

○MXmail.felixoswald.de2015-06-19 → 2016-06-18 · 4 obs

● 2015-06-19 06:21:36
● 2016-06-18 19:24:50
○ 2017-01-19 19:14:50
○ 2026-08-05 06:03:42

●MXw00585a8.kasserver.com2017-01-19 → 2026-08-05 · 3 obs

○ 2016-06-18 19:24:50
● 2017-01-19 19:14:50
● 2026-08-05 06:03:42

●A104.21.35.862026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

●A172.67.216.562026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

●A2606:4700:3032::ac43:d8382026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

●A2606:4700:3037::6815:23562026-06-29 → 2026-08-05 · 3 obs

○ 2020-03-03 11:00:38
● 2026-06-29 17:37:02
● 2026-08-05 06:03:42

○A85.13.132.592015-06-19 → 2017-01-19 · 4 obs

● 2015-06-19 06:21:36
● 2017-01-19 19:14:50
○ 2020-03-03 11:00:38
○ 2026-08-05 06:03:42

○A85.13.155.102020-03-03 → 2020-03-03 · 4 obs

○ 2017-01-19 19:14:50
● 2020-03-03 11:00:38
○ 2026-06-29 17:37:02
○ 2026-08-05 06:03:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
felixoswald.de	asa.ns.cloudflare.com, anirban.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.64

NS records: asa.ns.cloudflare.com, anirban.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for felixoswald.de (unsigned zone)

⏱️ Timing

Total: 906ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.216.56, 104.21.35.86`
AAAA	2	`2606:4700:3032::ac43:d838, 2606:4700:3037::6815:2356`
NS	2	`anirban.ns.cloudflare.com, asa.ns.cloudflare.com`
MX	1	`w00585a8.kasserver.com (pri: 10)`
TXT	2	`google-site-verification=KKXum84sUjvknxN, v=spf1 a mx include:spf.kasserver.com ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`anirban.ns.cloudflare.com dns.cloudflare`

Analysis

Hierarchy

The domain mail.felixoswald.de falls under the parent felixoswald.de.

IP Addresses

felixoswald.de directs to four IP numbers, which are 104.21.35.86, 172.67.216.56, 2606:4700:3032::ac43:d838 and 2606:4700:3037::6815:2356.

Among the host names that share IP numbers with felixoswald.de are 242yy.com, estetika-medart.si, guest-service8.click and two others.

Name Servers

felixoswald.de has two authoritative name servers — anirban.ns.cloudflare.com and asa.ns.cloudflare.com.

felixoswald.de has the same name server delegation as a number of other domains, such as projerseysmall.com, technopolo.net, mindecom.com and two more.

At least some of felixoswald.de's name servers are shared with other domains, for example bio-on.top, dbdholding.com, pokigame.blog and two more.

These name servers tend to be used in conjunction with the name servers abby.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

anirban.ns.cloudflare.com points to 108.162.193.64, 172.64.33.64, 173.245.59.64 and 3 other IP addresses.

asa.ns.cloudflare.com points to 108.162.192.246, 172.64.32.246, 173.245.58.246 and 3 other IP addresses.

Mail Servers

felixoswald.de routes its mail through a single mail server, w00585a8.kasserver.com.

felixoswald.de and domains like andreoswald.de share an identical mail server configuration.

w00585a8.kasserver.com points to one IP number — 85.13.155.10.

felixoswald.de - robtex.com

felixoswald.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

`felixoswald.de`

`de`