contractbook.dk - robtex.com

contractbook.dk

DNSSEC⚠️ Not signed
A2620:cb:2000::1Cloudflare2620:cb:2000::/48 Webflow
A198.202.211.1🇺🇸 CLOUDFLARESPECTRUM198.202.211.0/24 Webflow
NScharles.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b53🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcharles.ns.cloudflare.com
A2803:f800:50::6ca2:c153🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcharles.ns.cloudflare.com
A2a06:98c1:50::ac40:2153🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcharles.ns.cloudflare.com
A108.162.193.83🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcharles.ns.cloudflare.com
A172.64.33.83🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcharles.ns.cloudflare.com
A173.245.59.83🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcharles.ns.cloudflare.com
NSmary.ns.cloudflare.com
A2606:4700:50::adf5:3a86🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A2803:f800:50::6ca2:c086🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmary.ns.cloudflare.com
A2a06:98c1:50::ac40:2086🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmary.ns.cloudflare.com
A108.162.192.134🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A172.64.32.134🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
A173.245.58.134🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmary.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
TXTaQy7Ek8vsfqDVxZJ
TXTgoogle-site-verification=tmgPwM1AQr0BuDfblM7Gta7vq2xqNotbJZxlMD0YgEs
TXTv=spf1 include:_spf.google.com include:mail.zendesk.com include:web.shared.my...
SOAcharles.ns.cloudflare.comdns@cloudflare.com serial=2396227946

dk

DNSSEC🔒 Signed (DS record present)
NSb.nic.dk ⭐ 🔒
NSc.nic.dk 🔒
NSh.nic.dk 🔒
NSl.nic.dk 🔒
NSs.nic.dk 🔒
NSt.nic.dk 🔒
TXTDK zone updateEpoch 1771291441localtime Tue Feb 17 02:24:01 2026gmtime Tue Fe...
SOAb.nic.dktech@punktum.dk serial=1771291261

Same first word

contractbook.co
contractbook.dk
contractbook.com

DNS History

15 records (9 active, 6 former)

202120222023202420252026NScharles.ns.cloudflare.commary.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commxa.mailgun.orgmxb.mailgun.orgA198.202.211.12620:cb:2000::1104.28.10.15104.28.11.152606:4700:3030::681c:a0f2606:4700:3037::681c:b0f
●NScharles.ns.cloudflare.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●NSmary.ns.cloudflare.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●MXalt1.aspmx.l.google.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●MXalt2.aspmx.l.google.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●MXalt3.aspmx.l.google.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●MXalt4.aspmx.l.google.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
●MXaspmx.l.google.com2020-02-10 → 2026-03-09 · 2 obs
● 2020-02-10 01:19:12
● 2026-03-09 16:40:38
○MXmxa.mailgun.org2020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
○MXmxb.mailgun.org2020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
○A104.28.10.152020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
○A104.28.11.152020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
●A198.202.211.12026-03-06 → 2026-03-09 · 3 obs
○ 2020-02-10 01:19:12
● 2026-03-06 00:41:16
● 2026-03-09 16:40:38
○A2606:4700:3030::681c:a0f2020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
○A2606:4700:3037::681c:b0f2020-02-10 → 2020-02-10 · 3 obs
● 2020-02-10 01:19:12
○ 2026-03-06 00:41:16
○ 2026-03-09 16:40:38
●A2620:cb:2000::12026-03-06 → 2026-03-09 · 3 obs
○ 2020-02-10 01:19:12
● 2026-03-06 00:41:16
● 2026-03-09 16:40:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
contractbook.dkmary.ns.cloudflare.com, charles.ns.cloudflare.com-

✅ Authoritative Response

Server: 108.162.192.134

NS records: mary.ns.cloudflare.com, charles.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contractbook.dk (unsigned zone)

⏱️ Timing

Total: 908ms | Queries: -

📄 Records

TypeCountSample Data
A1198.202.211.1
AAAA12620:cb:2000::1
NS2charles.ns.cloudflare.com, mary.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT3aQy7Ek8vsfqDVxZJ, google-site-verification=tmgPwM1AQr0BuDf...
SOA1charles.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

contractbook.dk points to two IP numbers: 2620:cb:2000::1 and 198.202.211.1.

Other host names such as recovis.ch, growtha.com, orinor.no, seabyland.com and flexity.com.au share IPs with contractbook.dk.

Name Servers

Two name servers charles.ns.cloudflare.com and mary.ns.cloudflare.com handle the delegation for contractbook.dk.

contractbook.dk shares the same name server setup as other domains, for example netmotors.cl, cuatroruedas.cl, mfpets.cl, daff.cl and sparklerfactory.com.

contractbook.dk at least partially shares name servers with other domains, for example xsolf.com, lainlabs.com, brainstellar.com, cloudhub.my and vhttps.com.

these name servers are commonly used alongside rob.ns.cloudflare.com name servers.

Host names with six IP numbers:

charles.ns.cloudflare.com points to 2606:4700:58::adf5:3b53, 2803:f800:50::6ca2:c153, 2a06:98c1:50::ac40:2153, 108.162.193.83, 172.64.33.83 and 173.245.59.83.

mary.ns.cloudflare.com points to 2606:4700:50::adf5:3a86, 2803:f800:50::6ca2:c086, 2a06:98c1:50::ac40:2086, 108.162.192.134, 172.64.32.134 and 173.245.58.134.

Mail Servers

contractbook.dk is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

contractbook.dk shares at least partially some mail servers with other domains, for instance twoknitwits.com, ns500768.ns500759.ns500698.ns500759.ns500758.ns500759.ns500758.ns500735.ns500698.ns500735.ns500708.ns500576.ns500708.ns500576.ns500686.ns500576.trackreceptor.com, ns500734.ns500734.ns500734.ns500699.ns500734.ns500699.ns500699.ns500693.ns500588.ns500588.ns500699.ns500588.ns500699.ns500588.ns500632.ns500612.dtrkdll.com, ns500758.ns500698.ns500758.ns500758.ns500698.ns500698.ns500698.ns500735.ns500736.ns500698.ns500735.ns500708.ns500686.ns500652.ns500576.trackreceptor.com and ns500734.ns500734.ns500734.ns500699.ns500699.ns500699.ns500699.ns500588.ns500699.ns500693.ns500699.ns500699.ns500588.ns500683.ns500632.ns500588.ns500588.dtrkdll.com.

These mail servers are often used with aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers

Each host name points to two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27