`programm21.de`

DNSSEC	⚠️ Not signed
A	104.21.20.171^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.60^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ashley.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c047^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ashley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2047^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ashley.ns.cloudflare.com`
		A	108.162.192.71^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	172.64.32.71^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
		A	173.245.58.71^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ashley.ns.cloudflare.com`
NS	`mustafa.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c1b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mustafa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c31b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mustafa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:231b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mustafa.ns.cloudflare.com`
		A	108.162.195.27^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mustafa.ns.cloudflare.com`
		A	162.159.44.27^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mustafa.ns.cloudflare.com`
		A	172.64.35.27^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mustafa.ns.cloudflare.com`
MX	`w00a9231.kasserver.com` ⭐
		A	85.13.163.36^{🇩🇪 NMM-AS85.13.163.0/24 Neue Medien Muennich}
			PTR	`dd52022.kasserver.com`
TXT	`ahrefs-site-verification_2bb82dfebb925c222e7f99fa0c5542e621ddd54055f9f2f74625...`
TXT	`facebook-domain-verification=5e5tmugib2hazl18nvdiflrk4r2z7l`
TXT	`firebase=programm21-e93d8`
TXT	`google-site-verification=_SwR7CzPBjMfcXD8Yq72lJRVWmkGQ4Sl3wwYRdspbn0`
TXT	`tl7OuPz75Spaop6kYuv24ktdH/jwW8tUlia8iOTT5xg=`
TXT	`v=spf1 include:_spf.firebasemail.com include:amazonses.com ?all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.20.171, 172.67.193.60
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=247, name=cloudflare-ech.com
SOA	`ashley.ns.cloudflare.com`dns@cloudflare.com serial=2405747048

`de`

	DNSSEC	⚠️ Not signed
	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=1785206826

Subdomains

mail.programm21.de

Same first word

programm21.de

DNS History

9 records (5 active, 4 former)

●NSashley.ns.cloudflare.com2026-04-09 → 2026-07-28 · 3 obs

○ 2017-04-07 10:47:22
● 2026-04-09 06:55:50
● 2026-07-28 03:05:08

●NSmustafa.ns.cloudflare.com2026-04-09 → 2026-07-28 · 3 obs

○ 2017-04-07 10:47:22
● 2026-04-09 06:55:50
● 2026-07-28 03:05:08

○NSns.namespace4you.de2015-06-16 → 2017-04-07 · 4 obs

● 2015-06-16 20:40:04
● 2017-04-07 10:47:22
○ 2026-04-09 06:55:50
○ 2026-07-28 03:05:08

○NSns2.namespace4you.de2015-06-16 → 2017-04-07 · 4 obs

● 2015-06-16 20:40:04
● 2017-04-07 10:47:22
○ 2026-04-09 06:55:50
○ 2026-07-28 03:05:08

○MXmxlb.ispgateway.de2015-06-16 → 2017-04-07 · 4 obs

● 2015-06-16 20:40:04
● 2017-04-07 10:47:22
○ 2026-04-09 06:55:50
○ 2026-07-28 03:05:08

●MXw00a9231.kasserver.com2026-04-09 → 2026-07-28 · 3 obs

○ 2017-04-07 10:47:22
● 2026-04-09 06:55:50
● 2026-07-28 03:05:08

●A104.21.20.1712026-04-09 → 2026-07-28 · 3 obs

○ 2017-04-07 10:47:22
● 2026-04-09 06:55:50
● 2026-07-28 03:05:08

○A134.119.25.2262015-06-16 → 2017-04-07 · 4 obs

● 2015-06-16 20:40:04
● 2017-04-07 10:47:22
○ 2026-04-09 06:55:50
○ 2026-07-28 03:05:08

●A172.67.193.602026-04-09 → 2026-07-28 · 3 obs

○ 2017-04-07 10:47:22
● 2026-04-09 06:55:50
● 2026-07-28 03:05:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
programm21.de	ashley.ns.cloudflare.com, mustafa.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.27

NS records: ashley.ns.cloudflare.com, mustafa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programm21.de (unsigned zone)

⏱️ Timing

Total: 1560ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.193.60, 104.21.20.171`
NS	2	`ashley.ns.cloudflare.com, mustafa.ns.cloudflare.com`
MX	1	`w00a9231.kasserver.com (pri: 10)`
TXT	6	`ahrefs-site-verification_2bb82dfebb925c2, facebook-domain-verification=5e5tmugib2h...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ashley.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

mail.programm21.de is a subdomain of programm21.de.

IP Addresses

programm21.de has two IP addresses: 104.21.20.171 and 172.67.193.60

Among the host names that share IP numbers with programm21.de are tech-info.fr, www.hehuren.cn, ruthsquilts.com and two others.

Name Servers

The NS records for programm21.de delegate to ashley.ns.cloudflare.com and mustafa.ns.cloudflare.com.

programm21.de has the same name server delegation as a number of other domains, such as localproductos.es, acceso-movil-es.com, misyuari.com and two more.

The name servers of programm21.de overlap at least partially with those of other domains — among them 441413.com, prioritymedical.us, outwardboundwilderness.org and two more.

The name servers tegan.ns.cloudflare.com, neil.ns.cloudflare.com and brodie.ns.cloudflare.com are commonly seen alongside these name servers.

Host names resolving to 6 IP numbers:

ashley.ns.cloudflare.com maps to 108.162.192.71, 172.64.32.71, 173.245.58.71 and 3 additional IP addresses.

mustafa.ns.cloudflare.com maps to 108.162.195.27, 162.159.44.27, 172.64.35.27 and 3 additional IP addresses.

Mail Servers

programm21.de routes its mail through a single mail server, w00a9231.kasserver.com.

programm21.de has the same MX record configuration as other domains, including fitmitbaby.de, if-app.com and p21.de.

w00a9231.kasserver.com resolves to 85.13.163.36 and no other IP number.

programm21.de - robtex.com

programm21.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

`programm21.de`

`de`