classa.de - dns.ninja

`classa.de`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:ccf6^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2a65^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.42.101^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.204.246^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`howard.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cab^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`howard.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ab^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`howard.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ab^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`howard.ns.cloudflare.com`
		A	108.162.195.171^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`howard.ns.cloudflare.com`
		A	162.159.44.171^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`howard.ns.cloudflare.com`
		A	172.64.35.171^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`howard.ns.cloudflare.com`
NS	`serenity.ns.cloudflare.com`
		A	2606:4700:50::a29f:266c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`serenity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`serenity.ns.cloudflare.com`
		A	108.162.194.108^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	162.159.38.108^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
		A	172.64.34.108^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serenity.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=5836dc8c75e961b94f6a0c057c9bf40fcd0f610a`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.42.101, 172.67.204.246
		IPv6 hints	2606:4700:3030::ac43:ccf6, 2606:4700:3037::6815:2a65
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=130, name=cloudflare-ech.com
SOA	`howard.ns.cloudflare.com`dns@cloudflare.com serial=2409144409

`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=1785666202

Same first word

classa.ch

classa.bg

classa.cn

classa.co.uk

classa.co.il

classa.com.au

classa.my

classa.de

classa.eu

classa.ru

classa.vn

classa.live

classa.it

classa.com

classa.es

Similar names

asclas.com

aclass.com.hk

casals.us

alcass.com

aclass.de

aclass.kr

alssac.org

casals.fr

aclass.no

slcasa.com

casals.it

casasl.com

casals.org

salsac.com

aclass.es

casals.be

csalas.cl

salcas.com.br

calssa.org

aclass.co.uk

calssa.com

aclass.dk

scalsa.com

lacsas.com

sascal.ca

casals.jp

aclass.am

aclass.net

alcsas.com

csalas.info

aclass.com.sg

aclass.ae

aclass.in

aclass.com.cn

aclass.com.tw

aclass.ca

lcasas.com

aclass.com.br

claass.eu

claass.it

cassal.biz

aclass.co.kr

aclass.co.za

caslas.pt

scalas.be

caslas.com

scalas.com

aclass.pro

cassal.com.br

casals.cl

salsac.net

aclass.co

aclass.vn

sslaac.com

slaasc.com

aclass.ru

aclass.info

scalas.co

salsac.co.uk

lassac.aero

sascal.com

aclass.se

alcass.info

calsas.com

aclass.com

scalas.net

alcass.co.uk

asscal.com

claass.com

scalas.us

casals.es

cassal.eu

aclass.us

lasacs.com

csalas.com

casals.biz

lacass.com

aclass.online

csalas.hu

cassal.com

sscala.com

salcas.com

alcass.biz

cassal.com.mx

lacass.eu

aclass.cn

aclass.com.my

lascas.de

aclass.co.jp

casals.com

aclass.host

alcass.net

aclass.it

claass.net

asclas.net

casals.cn

casals.tv

alcass.it

DNS History

17 records (8 active, 9 former)

●NShoward.ns.cloudflare.com2026-02-22 → 2026-08-02 · 3 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
● 2026-08-02 10:43:20

○NSns4.speicherzentrum.de2015-06-19 → 2017-09-10 · 4 obs

● 2015-06-19 18:34:10
● 2017-09-10 22:12:50
○ 2026-02-22 13:09:56
○ 2026-08-02 10:43:20

○NSns5.speicherzentrum.de2015-06-19 → 2017-09-10 · 4 obs

● 2015-06-19 18:34:10
● 2017-09-10 22:12:50
○ 2026-02-22 13:09:56
○ 2026-08-02 10:43:20

○NSns6.speicherzentrum.de2015-06-19 → 2017-09-10 · 4 obs

● 2015-06-19 18:34:10
● 2017-09-10 22:12:50
○ 2026-02-22 13:09:56
○ 2026-08-02 10:43:20

●NSserenity.ns.cloudflare.com2026-02-22 → 2026-08-02 · 3 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
● 2026-08-02 10:43:20

○MXmail.classa.de2015-06-19 → 2017-09-10 · 4 obs

● 2015-06-19 18:34:10
● 2017-09-10 22:12:50
○ 2026-02-22 13:09:56
○ 2026-08-02 10:43:20

●MXmail.protonmail.ch2026-02-22 → 2026-08-02 · 3 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
● 2026-08-02 10:43:20

●MXmailsec.protonmail.ch2026-02-22 → 2026-08-02 · 3 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
● 2026-08-02 10:43:20

●A104.21.42.1012026-03-07 → 2026-08-02 · 3 obs

○ 2026-02-22 13:09:56
● 2026-03-07 01:54:14
● 2026-08-02 10:43:20

○A172.64.80.12026-02-22 → 2026-02-22 · 4 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
○ 2026-03-07 01:54:14
○ 2026-08-02 10:43:20

●A172.67.204.2462026-03-07 → 2026-08-02 · 3 obs

○ 2026-02-22 13:09:56
● 2026-03-07 01:54:14
● 2026-08-02 10:43:20

○A178.254.62.352015-06-19 → 2017-09-10 · 4 obs

● 2015-06-19 18:34:10
● 2017-09-10 22:12:50
○ 2026-02-22 13:09:56
○ 2026-08-02 10:43:20

○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-22 → 2026-02-22 · 4 obs

○ 2017-09-10 22:12:50
● 2026-02-22 13:09:56
○ 2026-03-07 01:54:14
○ 2026-08-02 10:43:20

○A2606:4700:3030::6815:2a652026-03-07 → 2026-06-09 · 5 obs

○ 2026-02-22 13:09:56
● 2026-03-07 01:54:14
● 2026-06-09 15:20:20
○ 2026-06-24 03:05:26
○ 2026-08-02 10:43:20

●A2606:4700:3030::ac43:ccf62026-06-24 → 2026-08-02 · 3 obs

○ 2026-06-09 15:20:20
● 2026-06-24 03:05:26
● 2026-08-02 10:43:20

○A2606:4700:3035::ac43:ccf62026-03-07 → 2026-06-09 · 5 obs

○ 2026-02-22 13:09:56
● 2026-03-07 01:54:14
● 2026-06-09 15:20:20
○ 2026-06-24 03:05:26
○ 2026-08-02 10:43:20

●A2606:4700:3037::6815:2a652026-06-24 → 2026-08-02 · 3 obs

○ 2026-06-09 15:20:20
● 2026-06-24 03:05:26
● 2026-08-02 10:43:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
classa.de	howard.ns.cloudflare.com, serenity.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.171

NS records: howard.ns.cloudflare.com, serenity.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classa.de (unsigned zone)

⏱️ Timing

Total: 815ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.204.246, 104.21.42.101`
AAAA	2	`2606:4700:3037::6815:2a65, 2606:4700:3030::ac43:ccf6`
NS	2	`howard.ns.cloudflare.com, serenity.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=5836dc8c75e961b9, v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`howard.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

classa.de points to the four IP addresses 104.21.42.101, 172.67.204.246, 2606:4700:3030::ac43:ccf6 and 2606:4700:3037::6815:2a65.

Two other host names, along with 9cd95b.com, hermanne-sa.be and smarttraffic.today, also share IP numbers with classa.de.

Name Servers

DNS delegation for classa.de points to two name servers: howard.ns.cloudflare.com and serenity.ns.cloudflare.com.

classa.de shares its NS records with other domains, for example bulgariabridemarket.com, interpreters.today, expats-paris.com and two others.

The name servers of classa.de overlap at least partially with those of other domains — among them rulosikrebofx.pro, 17755bb.com, highflyer-casino.vip and two more.

These name servers commonly appear in combination with the name servers clara.ns.cloudflare.com.

DNS names with 6 IP addresses:

howard.ns.cloudflare.com has IP addresses 108.162.195.171, 162.159.44.171 and 172.64.35.171, plus 3 other.

serenity.ns.cloudflare.com has IP addresses 108.162.194.108, 162.159.38.108 and 172.64.34.108, plus 3 other.

Mail Servers

classa.de is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

Among the domains sharing a mail server setup with classa.de are mpbj.dk, joeltd.com, swiftalert.com and two others.

There is at least a partial MX overlap between classa.de and other domains, including nixonbell.com, kenoh.eu, stopple.com and two others.

Both mail.protonmail.ch and mailsec.protonmail.ch point to three IP numbers: mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128, while mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.