biotools.us - dns.ninja

biotools.us

DNSSEC⚠️ Not signed
A74.50.67.158🇺🇸 NJIIX-174.50.64.0/19 proxy by NJIIX.net
NScdns1.interserver.net ⭐
A216.158.228.164🇺🇸 NJIIX-1216.158.224.0/20 Proxy by NJIIX.NET
PTRcdns1.interserver.net
NScdns2.interserver.net
A216.158.234.243🇺🇸 NJIIX-1216.158.224.0/20 Proxy by NJIIX.NET
PTRcdns2.interserver.net
NScdns3.interserver.net
A199.231.191.75🇺🇸 NJIIX-1199.231.184.0/21 Proxy by NJIIX.NET
PTRcdns3.interserver.net
MXmail.biotools.us ⭐
A74.50.67.158🇺🇸 NJIIX-174.50.64.0/19 proxy by NJIIX.net
TXTv=spf1 +mx +a +ip4:198.71.56.21 +ip4:96.76.93.213 +ip4:74.50.67.158 include:r...
TXTgoogle-site-verification=UabT4gIUdHrotzOKesVWZcgpRLNP6wCX58glm746AGo
SOAcdns1.interserver.netdns@interserver.net 2026-06-19 #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=1785596875

Subdomains

mail.biotools.us
vps.biotools.us

Same first word

biotools.fr
biotools.com.au
biotools.net
biotools.com
biotools.org
biotools.kr
biotools.us
biotools.eu
biotools.co

Similar names

stoloboi.ru
boostoil.eu
boostoil.biz
biostool.com

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NScdns1.interserver.netcdns2.interserver.netcdns3.interserver.netns05.domaincontrol.comns06.domaincontrol.comMXmail.biotools.usmailstore1.secureserver.netsmtp.secureserver.netA74.50.67.158184.168.221.350.63.202.70
●NScdns1.interserver.net2026-02-26 → 2026-08-01 · 3 obs
○ 2016-04-04 16:06:42
● 2026-02-26 04:49:46
● 2026-08-01 16:08:04
●NScdns2.interserver.net2026-02-26 → 2026-08-01 · 3 obs
○ 2016-04-04 16:06:42
● 2026-02-26 04:49:46
● 2026-08-01 16:08:04
●NScdns3.interserver.net2026-02-26 → 2026-08-01 · 3 obs
○ 2016-04-04 16:06:42
● 2026-02-26 04:49:46
● 2026-08-01 16:08:04
○NSns05.domaincontrol.com2015-09-02 → 2016-02-26 · 4 obs
● 2015-09-02 06:04:10
● 2016-02-26 05:09:22
○ 2016-04-04 16:06:42
○ 2026-08-01 16:08:04
○NSns06.domaincontrol.com2015-09-02 → 2016-02-26 · 4 obs
● 2015-09-02 06:04:10
● 2016-02-26 05:09:22
○ 2016-04-04 16:06:42
○ 2026-08-01 16:08:04
●MXmail.biotools.us2026-02-26 → 2026-08-01 · 3 obs
○ 2016-04-04 16:06:42
● 2026-02-26 04:49:46
● 2026-08-01 16:08:04
○MXmailstore1.secureserver.net2015-09-02 → 2016-02-26 · 4 obs
● 2015-09-02 06:04:10
● 2016-02-26 05:09:22
○ 2016-04-04 16:06:42
○ 2026-08-01 16:08:04
○MXsmtp.secureserver.net2015-09-02 → 2016-02-26 · 4 obs
● 2015-09-02 06:04:10
● 2016-02-26 05:09:22
○ 2016-04-04 16:06:42
○ 2026-08-01 16:08:04
○A184.168.221.32015-09-02 → 2016-01-06 · 4 obs
● 2015-09-02 06:04:10
● 2016-01-06 00:43:00
○ 2016-02-26 05:09:22
○ 2026-08-01 16:08:04
○A50.63.202.702016-02-26 → 2016-02-26 · 4 obs
○ 2016-01-06 00:43:00
● 2016-02-26 05:09:22
○ 2016-04-04 16:06:42
○ 2026-08-01 16:08:04
●A74.50.67.1582026-02-26 → 2026-08-01 · 3 obs
○ 2016-04-04 16:06:42
● 2026-02-26 04:49:46
● 2026-08-01 16:08:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
biotools.uscdns3.interserver.net, cdns1.interserver.net, cdns2.interserver.net-

✅ Authoritative Response

Server:199.231.191.75

NS records: cdns3.interserver.net, cdns1.interserver.net, cdns2.interserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biotools.us (unsigned zone)

⏱️ Timing

Total: 457ms | Queries: -

📄 Records

TypeCountSample Data
A174.50.67.158
NS3cdns3.interserver.net, cdns2.interserver.net...
MX1mail.biotools.us (pri: 25)
TXT2v=spf1 +mx +a +ip4:198.71.56.21 +ip4:96., google-site-verification=UabT4gIUdHrotzO
SOA1cdns1.interserver.net dns.interserver.ne

Analysis

Hierarchy

biotools.us serves as the parent of mail.biotools.us and vps.biotools.us.

IP Addresses

biotools.us has exactly one IP address — 74.50.67.158.

mail.btools.com, vps.biotools.us, protacal.com plus two other host names have IP numbers in common with biotools.us.

Name Servers

biotools.us is served by three name servers: cdns1.interserver.net, cdns2.interserver.net and cdns3.interserver.net.

biotools.us has at least partial name server overlap with other domains, such as miamirollingdoors.com, xl-shops.com, otowngist.com and two others.

cdns1.interserver.net has IP address 216.158.228.164, cdns2.interserver.net has IP address 216.158.234.243 and cdns3.interserver.net has IP address 199.231.191.75 — one address each.

Mail Servers

biotools.us uses one mail server — mail.biotools.us.

biotools.us uses the same mail servers as other domains, including protacal.com.

mail.biotools.us resolves to 74.50.67.158 and no other IP number.