`docchecksupport.de`

DNSSEC	⚠️ Not signed
A	185.158.133.1^{🇩🇪 Cloudflare185.158.133.0/24}
NS	`shades16.rzone.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:143^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`shades16.rzone.de`
		A	185.132.34.143^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades16.rzone.de`
NS	`docks20.rzone.de`
		A	2001:8d8:fe:53:5747:2a74:d:20^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
		A	217.160.80.147^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks20.rzone.de`
MX	`smtpin.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::1097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtpin.rzone.de`
		A	81.169.145.97^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtpin.rzone.de`
SOA	`shades16.rzone.de`hostmaster@strato-rz.de 2025-10-13 #33

`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=1778829855

⚠️ On DNS blocklist: tif

Same first word

docchecksupport.de

DNS History

4 records (4 active, 0 former)

●NSdocks20.rzone.de2026-05-05 → 2026-05-15 · 2 obs

● 2026-05-05 14:09:38
● 2026-05-15 07:53:20

●NSshades16.rzone.de2026-05-05 → 2026-05-15 · 2 obs

● 2026-05-05 14:09:38
● 2026-05-15 07:53:20

●MXsmtpin.rzone.de2026-05-05 → 2026-05-15 · 2 obs

● 2026-05-05 14:09:38
● 2026-05-15 07:53:20

●A185.158.133.12026-05-05 → 2026-05-15 · 2 obs

● 2026-05-05 14:09:38
● 2026-05-15 07:53:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
docchecksupport.de	shades16.rzone.de, docks20.rzone.de	-

✅ Authoritative Response

Server:185.132.34.143

NS records: shades16.rzone.de, docks20.rzone.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for docchecksupport.de (unsigned zone)

⏱️ Timing

Total: 1091ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.158.133.1`
NS	2	`shades16.rzone.de, docks20.rzone.de`
MX	1	`smtpin.rzone.de (pri: 5)`
SOA	1	`shades16.rzone.de hostmaster.strato-rz.d`

Analysis

IP Addresses

docchecksupport.de points to IP number 185.158.133.1.

For instance, other host names yadegator.com, bureau-cowork.fr, xverifyaccounts.com, hcvn.org and hub.copilotpme.app share IP numbers with docchecksupport.de.

Name Servers

docchecksupport.de is delegated to two name servers: docks20.rzone.de and shades16.rzone.de.

docchecksupport.de uses the same name server setup as other domains such as isarinstitut.com, familie-hutter.de, xn--ferienanlage-rgen-g3b.info, bdvo.de and bestplaces-to-marry.de.

docchecksupport.de shares name servers with other domains at least partially, for example xn--strandkrbe-behrens-j3b.de, t-links2b.com, duo-kleinesekunde.de, sach-com.de and bsb-law.de.

these name servers are often used with the following: docks05.rzone.de, docks13.rzone.de, shades12.rzone.de, shades13.rzone.de, shades14.rzone.de, shades05.rzone.de, shades19.rzone.de, docks03.rzone.de, docks15.rzone.de and shades01.rzone.de.

Host names with two IP numbers:

docks20.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:20 and 217.160.80.147; shades16.rzone.de points to 2607:f1c0:fe:53:185:132:34:143 and 185.132.34.143.

Mail Servers

docchecksupport.de is handled by a single mail server, smtpin.rzone.de.

docchecksupport.de shares the same mail server setup as other domains, for instance delta-computer.com, smellodies.com, staceejaxx.de, eggebrecht.de and fzimmermann.net.

smtpin.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.

docchecksupport.de - robtex.com