k2b.us - robtex.com

k2b.us

DNSSEC⚠️ Not signed
A23.111.254.93🇺🇸 LEASEWEB-US23.111.252.0/22 Leaseweb USA, Inc.
PTRopal18.opalstack.com
NSns1.us.opalstack.com ⭐
A45.79.107.55🇺🇸 AKAMAI-LINODE-AP45.79.96.0/20 Akamai Technologies
PTRns1.us.opalstack.com
NSns2.us.opalstack.com
A23.92.21.232🇺🇸 AKAMAI-LINODE-AP23.92.16.0/21 Akamai Technologies
PTRns2.us.opalstack.com
NSns3.us.opalstack.com
A45.56.74.5🇺🇸 AKAMAI-LINODE-AP45.56.64.0/20 Akamai Technologies
PTRns3.us.opalstack.com
MXmx1.us.opalstack.com ⭐
A108.62.123.121🇺🇸 LEASEWEB-US108.62.120.0/22 Leaseweb USA, Inc.
PTRmx1.us.opalstack.com
MXmx2.us.opalstack.com ⭐
A2605:fe80:2100:bf03:7::2🇺🇸 AS72032605:fe80::/32 Leaseweb USA, Inc. SFO-12 US
PTRmx2.us.opalstack.com
A23.82.16.244🇺🇸 AS720323.82.16.0/21 Leaseweb USA, Inc.
PTRmx2.us.opalstack.com
TXTv=spf1 include:spf.opalstack.com ~all
SOAns1.us.opalstack.comhostmaster@k2b.us 2026-06-15 #3

us

DNSSEC🔒 Signed (DS record present)
NSa.cctld.us ⭐
NSb.cctld.us
NSf.cctld.us
NSk.cctld.us
NSm.cctld.us
NSn.cctld.us
NSw.cctld.us
NSx.cctld.us
NSy.cctld.us
SOAa.cctld.usadmin@tldns.godaddy serial=1784185514

Previously MX for

k2b.us

Same first word

k2b.com
k2b.jp
k2b.info
k2b.de
k2b.org
k2b.at
k2b.ru
k2b.net
k2b.eu
k2b.top
k2b.gr
k2b.me
k2b.com.tr
k2b.us
k2b.nl
k2b.com.sg
k2b.cn

Similar names

b2k.pl
kb2.com
2kb.nl
2kb.eu
b2k.com.br
kb2.net
kb2.bet
2kb.cn
bk2.mobi
2bk.biz
bk2.online
bk2.us
b2k.ai
b2k.com
bk2.com.mx
kb2.pl
b2k.online
b2k.cz
kb2.de
2bk.ru
kb2.ru
bk2.nl
kb2.info
b2k.de
kb2.nl
2kb.cc
b2k.biz
2bk.net
bk2.org
kb2.org
2kb.ru
bk2.cc
b2k.com.sg
2bk.org
bk2.eu
bk2.cz
b2k.us
kb2.se
bk2.ru
kb2.dk
2kb.ai
b2k.ch
b2k.se
b2k.net
2bk.pl
2bk.cn
b2k.cn
2kb.com.uy
2kb.de
bk2.me
bk2.ws
2kb.xyz
2bk.ir
bk2.de
2kb.net
bk2.net
bk2.com
b2k.it
2bk.info
2kb.com
2kb.duckdns.org
b2k.org
b2k.eu
kb2.biz
b2k.com.pl
kb2.us

DNS History

19 records (6 active, 13 former)

20162017201820192020202120222023202420252026NSns1.us.opalstack.comns2.us.opalstack.comns3.us.opalstack.comns1.hostmonster.comns1.webfaction.comns2.hostmonster.comns2.webfaction.comns3.webfaction.comns4.webfaction.comMXmx1.us.opalstack.commx2.us.opalstack.comk2b.usmx7.webfaction.commx8.webfaction.commx9.webfaction.comA23.111.254.93184.172.15.2362607:f0d0:1103:106:e::4a74.220.207.78
○NSns1.hostmonster.com2015-07-21 → 2015-11-20 · 4 obs
● 2015-07-21 19:48:08
● 2015-11-20 14:44:32
○ 2016-02-23 22:44:58
○ 2026-07-16 07:42:54
●NSns1.us.opalstack.com2026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
○NSns1.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○NSns2.hostmonster.com2015-07-21 → 2015-11-20 · 4 obs
● 2015-07-21 19:48:08
● 2015-11-20 14:44:32
○ 2016-02-23 22:44:58
○ 2026-07-16 07:42:54
●NSns2.us.opalstack.com2026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
○NSns2.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
●NSns3.us.opalstack.com2026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
○NSns3.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○NSns4.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○MXk2b.us2015-07-21 → 2015-11-20 · 4 obs
● 2015-07-21 19:48:08
● 2015-11-20 14:44:32
○ 2016-02-23 22:44:58
○ 2026-07-16 07:42:54
●MXmx1.us.opalstack.com2026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
●MXmx2.us.opalstack.com2026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
○MXmx7.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○MXmx8.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○MXmx9.webfaction.com2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○A184.172.15.2362016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
●A23.111.254.932026-06-17 → 2026-07-16 · 3 obs
○ 2016-04-29 10:15:02
● 2026-06-17 20:46:10
● 2026-07-16 07:42:54
○A2607:f0d0:1103:106:e::4a2016-02-23 → 2016-04-29 · 5 obs
○ 2015-11-20 14:44:32
● 2016-02-23 22:44:58
● 2016-04-29 10:15:02
○ 2026-06-17 20:46:10
○ 2026-07-16 07:42:54
○A74.220.207.782015-07-21 → 2015-11-20 · 4 obs
● 2015-07-21 19:48:08
● 2015-11-20 14:44:32
○ 2016-02-23 22:44:58
○ 2026-07-16 07:42:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, x.cctld.us, k.cctld.us, n.cctld.us...-
k2b.usns3.us.opalstack.com, ns2.us.opalstack.com, ns1.us.opalstack.com-

✅ Authoritative Response

Server:23.92.21.232

NS records: ns3.us.opalstack.com, ns2.us.opalstack.com, ns1.us.opalstack.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for k2b.us (unsigned zone)

⏱️ Timing

Total: 889ms | Queries: -

📄 Records

TypeCountSample Data
A123.111.254.93
NS3ns2.us.opalstack.com, ns3.us.opalstack.com...
MX2mx1.us.opalstack.com (pri: 10), mx2.us.opalstack.com (pri: 10)
TXT1v=spf1 include:spf.opalstack.com ~all
SOA1ns1.us.opalstack.com hostmaster.k2b.us

Analysis

IP Addresses

k2b.us resolves to just one IP address, 23.111.254.93.

Two other host names, along with rehbehn.org, infosteward.info and johnstonhaus.us, also share IP numbers with k2b.us.

Name Servers

k2b.us is served by three name servers: ns1.us.opalstack.com, ns2.us.opalstack.com and ns3.us.opalstack.com.

k2b.us shares at least some of its name servers with other domains, including mw2mw.com, in-dreams.com, arinfo.com.ar and two others.

ns1.us.opalstack.com has IP address 45.79.107.55, ns2.us.opalstack.com has IP address 23.92.21.232 and ns3.us.opalstack.com has IP address 45.56.74.5 — one address each.

Mail Servers

k2b.us is served by two mail servers, mx1.us.opalstack.com and mx2.us.opalstack.com.

Among the domains sharing a mail server setup with k2b.us are 51jerry.com, socialinklabs.com, tonyjaffa.com and two others.

k2b.us partially shares its mail servers with other domains; known examples include calculatorsource.com, kasmitcovers.com and spoti.ca.

Host names that have two IP addresses:

The A records for mx2.us.opalstack.com return 23.82.16.244 and 2605:fe80:2100:bf03:7::2.

Host names that point to one IP address:

mx1.us.opalstack.com resolves to the IP address 108.62.123.121.