dok-4.de - robtex.com

dok-4.de

DNSSEC⚠️ Not signed
A2a01:310:8312:1035::237:1🇳🇱 ZYLON-AS2a01:310::/32 IPv6
PTRda01.nijm.nl
A77.74.54.237🇳🇱 ZYLON-AS77.74.48.0/21 Route-announcement
NSns1.openprovider.nl ⭐
A2400:cb00:2049:1::a29f:1a0a🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.26.10Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.openprovider.be
A2400:cb00:2049:1::a29f:1b60🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.27.96Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns3.openprovider.eu
A2400:cb00:2049:1::a29f:3059🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.48.89Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXspamfilter2.itass.nl ⭐
A193.9.23.100🇳🇱 DUOCAST-AS193.9.23.0/24 itass B.V.
PTRspamfilter2.itass.nl
MXspamfilter.itass.nl(20)
A89.146.0.145🇳🇱 ASN-ROUTIT89.146.0.0/18 RoutIT B.V.
PTRrt0bb146-89-145.routit.net
TXTv=spf1 a mx ip4:31.3.101.154 ip4:213.109.125.115 ip6:2a01:310:8312:1035:0:0:2...
SOAns1.openprovider.nldns@openprovider.eu 2021-01-28 #5

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1776105244

Subdomains

mail.dok-4.de

Same first word

dok-4.de
dok-4.com

DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSns1.openprovider.nlns2.openprovider.bens3.openprovider.euns1.nijm.nlns1.yoursrs.comns2.nijm.nlns2.yoursrs.comMXspamfilter.itass.nlspamfilter2.itass.nlmail.dok-4.deA2a01:310:8312:1035::237:177.74.54.2372001:9a8:0:c0::88:11531.3.101.15487.233.88.11588.159.17.176
○NSns1.nijm.nl2015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 04:22:42
○ 2015-11-01 17:25:18
○ 2026-04-13 18:47:10
●NSns1.openprovider.nl2026-03-01 → 2026-04-13 · 3 obs
○ 2018-01-12 02:57:28
● 2026-03-01 15:28:12
● 2026-04-13 18:47:10
○NSns1.yoursrs.com2015-11-01 → 2018-01-12 · 5 obs
○ 2015-06-25 04:22:42
● 2015-11-01 17:25:18
● 2018-01-12 02:57:28
○ 2026-03-01 15:28:12
○ 2026-04-13 18:47:10
○NSns2.nijm.nl2015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 04:22:42
○ 2015-11-01 17:25:18
○ 2026-04-13 18:47:10
●NSns2.openprovider.be2026-03-01 → 2026-04-13 · 3 obs
○ 2018-01-12 02:57:28
● 2026-03-01 15:28:12
● 2026-04-13 18:47:10
○NSns2.yoursrs.com2015-11-01 → 2018-01-12 · 5 obs
○ 2015-06-25 04:22:42
● 2015-11-01 17:25:18
● 2018-01-12 02:57:28
○ 2026-03-01 15:28:12
○ 2026-04-13 18:47:10
●NSns3.openprovider.eu2026-03-01 → 2026-04-13 · 3 obs
○ 2018-01-12 02:57:28
● 2026-03-01 15:28:12
● 2026-04-13 18:47:10
○MXmail.dok-4.de2015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 04:22:42
○ 2015-11-01 17:25:18
○ 2026-04-13 18:47:10
●MXspamfilter.itass.nl2015-11-01 → 2026-04-13 · 3 obs
○ 2015-06-25 04:22:42
● 2015-11-01 17:25:18
● 2026-04-13 18:47:10
●MXspamfilter2.itass.nl2015-11-01 → 2026-04-13 · 3 obs
○ 2015-06-25 04:22:42
● 2015-11-01 17:25:18
● 2026-04-13 18:47:10
○A2001:9a8:0:c0::88:1152018-01-12 → 2018-01-12 · 4 obs
○ 2016-12-30 15:25:34
● 2018-01-12 02:57:28
○ 2026-03-01 15:28:12
○ 2026-04-13 18:47:10
●A2a01:310:8312:1035::237:12026-03-01 → 2026-04-13 · 3 obs
○ 2018-01-12 02:57:28
● 2026-03-01 15:28:12
● 2026-04-13 18:47:10
○A31.3.101.1542015-11-01 → 2016-12-30 · 5 obs
○ 2015-06-25 04:22:42
● 2015-11-01 17:25:18
● 2016-12-30 15:25:34
○ 2018-01-12 02:57:28
○ 2026-04-13 18:47:10
●A77.74.54.2372026-03-01 → 2026-04-13 · 3 obs
○ 2018-01-12 02:57:28
● 2026-03-01 15:28:12
● 2026-04-13 18:47:10
○A87.233.88.1152018-01-12 → 2018-01-12 · 4 obs
○ 2016-12-30 15:25:34
● 2018-01-12 02:57:28
○ 2026-03-01 15:28:12
○ 2026-04-13 18:47:10
○A88.159.17.1762015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 04:22:42
○ 2015-11-01 17:25:18
○ 2026-04-13 18:47:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dez.nic.de, f.nic.de, a.nic.de-
dok-4.dens3.openprovider.eu, ns1.openprovider.nl, ns2.openprovider.be-

✅ Authoritative Response

Server:162.159.27.96

NS records: ns3.openprovider.eu, ns1.openprovider.nl, ns2.openprovider.be

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1443ms | Queries: -

📄 Records

TypeCountSample Data
A177.74.54.237
AAAA12a01:310:8312:1035::237:1
NS3ns2.openprovider.be, ns1.openprovider.nl...
MX2spamfilter2.itass.nl (pri: 20), spamfilter.itass.nl (pri: 10)
TXT1v=spf1 a mx ip4:31.3.101.154 ip4:213.109
SOA1ns1.openprovider.nl dns.openprovider.eu

Analysis

Hierarchy

dok-4.de is a parent of mail.dok-4.de.

IP Addresses

dok-4.de points to two IP numbers: 2a01:310:8312:1035::237:1 and 77.74.54.237.

Other host names such as rednerpulten.de, dehoeksteenterapel.nl, mail.schildersbedrijfwilting.nl, mail.tdeman.nl and nijmko-telecom.nl share IP numbers with dok-4.de.

Name Servers

dok-4.de is delegated to three name servers: ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl.

At least part of the name servers for dok-4.de are shared with other domains, for instance promessomadrid.com, breens.nl, kraai.be, powerwashenterprise.com and clann.nl.

Host names with two IP numbers:

ns2.openprovider.be points to 2400:cb00:2049:1::a29f:1b60 and 162.159.27.96

ns3.openprovider.eu points to 2400:cb00:2049:1::a29f:3059 and 162.159.48.89

ns1.openprovider.nl points to 2400:cb00:2049:1::a29f:1a0a and 162.159.26.10

Mail Servers

dok-4.de is handled by two mail servers: spamfilter2.itass.nl and spamfilter.itass.nl.

dok-4.de uses the same mail server setup as other domains, for instance angerenstein.nl, delftsemethode.nl, boomnelissen.nl, alfabetiseren.nl and kn(0x736578)amen.nl.

Some mail servers are shared between dok-4.de and other domains, for instance shop4all.nu.

these mail servers are frequently used alongside the mail servers shop4all-nu.mail.protection.outlook.com.

Hostnames with a single IP

spamfilter2.itass.nl resolves to: 193.9.23.100.

spamfilter.itass.nl resolves to: 89.146.0.145.