kuefferdevs.ch - dns.ninja

`kuefferdevs.ch`

DNSSEC	🔒 Signed (DS record present)
A	38.242.200.100^{🇩🇪 CONTABO38.242.192.0/19 Route Registered for Cogent Communications Customer - Contabo GmbH}
		PTR	`vmi1333330.contaboserver.net`
NS	`jean.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c079^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jean.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2079^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jean.ns.cloudflare.com`
		A	108.162.192.121^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	172.64.32.121^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	173.245.58.121^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
NS	`merlin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bcd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1cd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`merlin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21cd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`merlin.ns.cloudflare.com`
		A	108.162.193.205^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	172.64.33.205^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	173.245.59.205^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
MX	`mail.kuefferdevs.ch` ⭐
		A	38.242.200.100^{🇩🇪 CONTABO38.242.192.0/19 Route Registered for Cogent Communications Customer - Contabo GmbH}
			PTR	`vmi1333330.contaboserver.net`
TXT	`v=spf1 ip4:38.242.200.100 -all`
SOA	`jean.ns.cloudflare.com`dns@cloudflare.com serial=2411100344

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-08-14 #2

Subdomains

mail.kuefferdevs.ch

Same first word

kuefferdevs.ch

DNS History

4 records (4 active, 0 former)

●NSjean.ns.cloudflare.com2026-02-24 → 2026-08-13 · 2 obs

● 2026-02-24 02:25:38
● 2026-08-13 23:44:32

●NSmerlin.ns.cloudflare.com2026-02-24 → 2026-08-13 · 2 obs

● 2026-02-24 02:25:38
● 2026-08-13 23:44:32

●MXmail.kuefferdevs.ch2026-02-24 → 2026-08-13 · 2 obs

● 2026-02-24 02:25:38
● 2026-08-13 23:44:32

●A38.242.200.1002026-02-24 → 2026-08-13 · 2 obs

● 2026-02-24 02:25:38
● 2026-08-13 23:44:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...	-
kuefferdevs.ch	jean.ns.cloudflare.com, merlin.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.205

NS records: jean.ns.cloudflare.com, merlin.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 470ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.242.200.100`
NS	2	`jean.ns.cloudflare.com, merlin.ns.cloudflare.com`
MX	1	`mail.kuefferdevs.ch (pri: 10)`
TXT	1	`v=spf1 ip4:38.242.200.100 -all`
SOA	1	`jean.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

kuefferdevs.ch serves as the parent of mail.kuefferdevs.ch.

IP Addresses

kuefferdevs.ch directs to one IP number, which is 38.242.200.100.

Additional host names — including vmi1333330.contaboserver.net and mail.kuefferdevs.ch — share IP numbers with kuefferdevs.ch.

Name Servers

DNS delegation for kuefferdevs.ch points to two name servers: jean.ns.cloudflare.com and merlin.ns.cloudflare.com.

kuefferdevs.ch has the same name server delegation as a number of other domains, such as acrofast.com, simavtso.org.tr, cs.dog and two more.

kuefferdevs.ch has at least partial name server overlap with other domains, such as natifs.ca, hollingwoodstar.com, erwan.io and two others.

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

Host names resolving to 6 IP numbers:

jean.ns.cloudflare.com has IP addresses 108.162.192.121, 172.64.32.121 and 173.245.58.121, plus 3 other.

merlin.ns.cloudflare.com has IP addresses 108.162.193.205, 172.64.33.205 and 173.245.59.205, plus 3 other.

Mail Servers

kuefferdevs.ch routes its mail through a single mail server, mail.kuefferdevs.ch.

mail.kuefferdevs.ch has exactly one IP number: 38.242.200.100.