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a.io

DNSSEC⚠️ Not signed
A85.10.133.119🇳🇱 TRANSIP-AS
PTR85-10-133-119.colo.transip.net
NSns1.a.io ⭐
A2a06:fb00:1::1:251🇧🇬 CLOUDNSNET
PTRns1.a.io
A185.136.96.251🇺🇸 CLOUDNSNET
PTRns1.a.io
NSns2.a.io
A2a06:fb00:1::2:251🇧🇬 CLOUDNSNET
PTRns2.a.io
A185.136.97.251 CLOUDNSNET
PTRns2.a.io
NSns3.a.io
A2a06:fb00:1::3:251🇧🇬 CLOUDNSNET
PTRns3.a.io
A185.136.98.251🇺🇸 CLOUDNSNET
PTRns3.a.io
NSns4.a.io
A2a06:fb00:1::4:251🇧🇬 CLOUDNSNET
PTRns4.a.io
A185.136.99.251 CLOUDNSNET
PTRns4.a.io
MXa-io.mail.protection.outlook.com ⭐
A2a01:111:f403:f802::1🇺🇸 Microsoft
PTRmail-sj2pr05cu00101.inbound.protection.outlook.com
A2a01:111:f403:f802::3🇺🇸 Microsoft
PTRmail-sj0pr03cu01403.inbound.protection.outlook.com
A2a01:111:f403:f805::🇺🇸 Microsoft
PTRmail-mw2pr02cu00400.inbound.protection.outlook.com
A2a01:111:f403:f90f::🇺🇸 Microsoft
PTRmail-sa9pr04cu00100.inbound.protection.outlook.com
A52.101.9.2🇺🇸 Microsoft
PTRmail-mn2pr02cu00202.inbound.protection.outlook.com
A52.101.40.1🇺🇸 Microsoft
PTRmail-cy4pr03cu00101.inbound.protection.outlook.com
A52.101.40.4🇺🇸 Microsoft
PTRmail-cy5pr03cu00204.inbound.protection.outlook.com
A52.101.194.15🇺🇸 Microsoft
PTRmail-ch4pr21cu00107.inbound.protection.outlook.com
A207.46.163.138🇺🇸 Microsoft
PTRmail-bn14138.inbound.protection.outlook.com
A207.46.163.170🇺🇸 Microsoft
PTRmail-bn1b4170.inbound.protection.outlook.com
A207.46.163.247🇺🇸 Microsoft
PTRmail-by24247.inbound.protection.outlook.com
TXTMS=ms78015345
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns1.a.iosupport@a.io 2026-02-05 #1

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐ 🔒
NSa2.nic.io 🔒
NSb0.nic.io 🔒
NSc0.nic.io 🔒
SOAa0.nic.iohostmaster@donuts.email serial=1770984489
📈 Tranco rank: #35,208

Previously MX for

a.io

Up

ns3.a.io
ns2.a.io
ns4.a.io
www.a.io
dns2.a.io
ns1.a.io
dns1.a.io

Same first word

a.net.pl
a.org
a.dk
a.tv
a.com.se
a.gov.lv
a.pisz.pl
a.net.cn
a.realty
a.boutique
a.community
a.jewelry
a.fm
a.asia
a.me
a.ly
a.com.mx
a.ai
a.cx
a.ws
a.hn
a.team
a.ro
a.vin
a.org.pl
a.show
a.sv
a.ki
a.run
a.uy
a.sumy.ua
a.md
a.te.ua
a.associates
a.pl
a.expert
a.com.vn
a.af
a.ac
a.dj
a.construction
a.cool
a.bo
a.gifts
a.cooking
a.vg
a.co
a.fit
a.gg
a.hm
a.group
a.pizza
a.mp
a.mom
a.io
a.email
a.cloudfunctions.net
a.tools
a.codes
a.bargains
a.coupons
a.com.mt
a.app
a.is
a.institute
a.or.at
a.fi
a.blogspot.com
a.et
a.ua
a.cat
a.pn
a.am
a.university
a.cheap
a.com.cn
a.sg
a.finance
a.mortgage
a.gift
a.tt
a.game
a.pe
a.shoes
a.deals
a.top
a.sh
a.bw
a.farm
a.country
a.fyi
a.enterprises
a.link
a.day
a.co.tz
a.toys
a.taxi
a.cam
a.ie
a.com.hr

Similar names

a.nm.cn
a.nf
a.theatre
a.recipes
a.com.gt
a.cab
a.education
a.fr
a.how
a.com.uy
a.center
a.industries
a.cash
a.akamaiedge-staging.net
a.tm
a.ath.cx
a.cr
a.wtf
a.holiday
a.bot
a.direct
a.clothing
a.lu
a.gp
a.travel
a.dentist
a.zone
a.ph
a.restaurant
a.care
a.dp.ua
a.ml
a.gx.cn
a.com.ar
a.ee
a.vu
a.amsterdam
a.de
a.com.pl
a.at
a.co.nl
a.land
a.pro
a.au
a.city
a.fo
a.cm
a.express
a.geek.nz
a.co.il
a.hu
a.akamaiedge.net
a.co.nz
a.doctor
a.je
a.cc
a.kg
a.cz
a.sd.cn
a.gt
a.mk
a.business
a.st
a.wedding
a.media
a.nt.ro
a.my
a.gmbh
a.mba
a.network
a.foundation
a.fish
a.biz
a.im
a.discount
a.support
a.band
a.cl
a.to
a.gd
a.net.vn
a.careers
a.parts
a.gl
a.tennis
a.ms
a.solutions
a.plus
a.events
a.co.za
a.uk
a.partners
a.canva-apps.cn
a.pictures
a.guru
a.zip
a.directory

DNS History

33 records (6 active, 27 former)

20162017201820192020202120222023202420252026NSns1.a.ions2.a.ions3.a.ions4.a.iol1.ns.divido.orgl1.ns.divido.org.a.iol2.ns.divido.orgns0.a.ions1.bluehost.comns1.domainery.comns2.bluehost.comns2.domainery.compdns07.domaincontrol.compdns08.domaincontrol.comMXa-io.mail.protection.outlook.coma.ioA85.10.133.119104.238.101.108149.56.126.228149.56.147.62159.8.40.55174.128.248.228174.128.248.232174.128.248.239184.171.246.70184.171.246.712610:150:8019::1:aa282610:150:8019::1:aa322a00:1768:2001:63::46:9846.166.184.9850.116.70.18950.21.180.10052.32.215.222
○NSl1.ns.divido.org2015-08-27 → 2015-09-29 · 4 obs
● 2015-08-27 03:43:34
● 2015-09-29 17:51:10
○ 2015-10-09 04:30:06
○ 2026-02-14 23:12:02
○NSl1.ns.divido.org.a.io2015-08-27 → 2015-09-29 · 4 obs
● 2015-08-27 03:43:34
● 2015-09-29 17:51:10
○ 2015-10-09 04:30:06
○ 2026-02-14 23:12:02
○NSl2.ns.divido.org2015-08-27 → 2015-09-29 · 4 obs
● 2015-08-27 03:43:34
● 2015-09-29 17:51:10
○ 2015-10-09 04:30:06
○ 2026-02-14 23:12:02
○NSns0.a.io2016-06-10 → 2016-06-24 · 5 obs
○ 2016-05-22 02:29:24
● 2016-06-10 10:56:30
● 2016-06-24 02:18:48
○ 2016-07-08 00:43:42
○ 2026-02-14 23:12:02
●NSns1.a.io2016-05-22 → 2026-02-14 · 3 obs
○ 2016-05-14 02:38:06
● 2016-05-22 02:29:24
● 2026-02-14 23:12:02
○NSns1.bluehost.com2016-05-14 → 2016-05-14 · 4 obs
○ 2016-04-21 06:38:36
● 2016-05-14 02:38:06
○ 2016-05-22 02:29:24
○ 2026-02-14 23:12:02
○NSns1.domainery.com2015-10-09 → 2015-10-09 · 4 obs
○ 2015-09-29 17:51:10
● 2015-10-09 04:30:06
○ 2015-10-31 06:54:02
○ 2026-02-14 23:12:02
●NSns2.a.io2016-05-22 → 2026-02-14 · 3 obs
○ 2016-05-14 02:38:06
● 2016-05-22 02:29:24
● 2026-02-14 23:12:02
○NSns2.bluehost.com2016-05-14 → 2016-05-14 · 4 obs
○ 2016-04-21 06:38:36
● 2016-05-14 02:38:06
○ 2016-05-22 02:29:24
○ 2026-02-14 23:12:02
○NSns2.domainery.com2015-10-09 → 2015-10-09 · 4 obs
○ 2015-09-29 17:51:10
● 2015-10-09 04:30:06
○ 2015-10-31 06:54:02
○ 2026-02-14 23:12:02
●NSns3.a.io2016-06-10 → 2026-02-14 · 3 obs
○ 2016-05-22 02:29:24
● 2016-06-10 10:56:30
● 2026-02-14 23:12:02
●NSns4.a.io2016-06-10 → 2026-02-14 · 3 obs
○ 2016-05-22 02:29:24
● 2016-06-10 10:56:30
● 2026-02-14 23:12:02
○NSpdns07.domaincontrol.com2015-10-31 → 2016-04-21 · 5 obs
○ 2015-10-09 04:30:06
● 2015-10-31 06:54:02
● 2016-04-21 06:38:36
○ 2016-05-14 02:38:06
○ 2026-02-14 23:12:02
○NSpdns08.domaincontrol.com2015-10-31 → 2016-04-21 · 5 obs
○ 2015-10-09 04:30:06
● 2015-10-31 06:54:02
● 2016-04-21 06:38:36
○ 2016-05-14 02:38:06
○ 2026-02-14 23:12:02
●MXa-io.mail.protection.outlook.com2015-10-31 → 2026-02-14 · 3 obs
○ 2015-10-09 04:30:06
● 2015-10-31 06:54:02
● 2026-02-14 23:12:02
○MXa.io2015-10-09 → 2015-10-09 · 3 obs
● 2015-10-09 04:30:06
○ 2015-10-31 06:54:02
○ 2026-02-14 23:12:02
○A104.238.101.1082015-10-09 → 2016-04-21 · 5 obs
○ 2015-09-29 17:51:10
● 2015-10-09 04:30:06
● 2016-04-21 06:38:36
○ 2016-05-14 02:38:06
○ 2026-02-14 23:12:02
○A149.56.126.2282016-08-16 → 2017-01-22 · 5 obs
○ 2016-08-03 15:32:06
● 2016-08-16 02:40:06
● 2017-01-22 00:32:08
○ 2017-03-22 07:05:22
○ 2026-02-14 23:12:02
○A149.56.147.622017-03-22 → 2017-07-03 · 5 obs
○ 2017-01-22 00:32:08
● 2017-03-22 07:05:22
● 2017-07-03 08:10:34
○ 2019-10-27 18:15:58
○ 2026-02-14 23:12:02
○A159.8.40.552019-10-27 → 2021-11-07 · 5 obs
○ 2017-07-03 08:10:34
● 2019-10-27 18:15:58
● 2021-11-07 23:45:56
○ 2026-02-14 23:12:00
○ 2026-02-14 23:12:02
○A174.128.248.2282016-08-16 → 2016-12-21 · 5 obs
○ 2016-08-03 15:32:06
● 2016-08-16 02:40:06
● 2016-12-21 10:25:00
○ 2016-12-24 01:37:14
○ 2026-02-14 23:12:02
○A174.128.248.2322017-03-22 → 2017-03-22 · 4 obs
○ 2017-01-22 00:32:08
● 2017-03-22 07:05:22
○ 2017-07-03 08:10:34
○ 2026-02-14 23:12:02
○A174.128.248.2392016-12-24 → 2017-01-22 · 5 obs
○ 2016-12-21 10:25:00
● 2016-12-24 01:37:14
● 2017-01-22 00:32:08
○ 2017-03-22 07:05:22
○ 2026-02-14 23:12:02
○A184.171.246.702016-07-08 → 2016-08-03 · 5 obs
○ 2016-06-24 02:18:48
● 2016-07-08 00:43:42
● 2016-08-03 15:32:06
○ 2016-08-16 02:40:06
○ 2026-02-14 23:12:02
○A184.171.246.712016-05-22 → 2016-05-29 · 5 obs
○ 2016-05-14 02:38:06
● 2016-05-22 02:29:24
● 2016-05-29 07:54:12
○ 2016-06-10 10:56:30
○ 2026-02-14 23:12:02
○A2610:150:8019::1:aa282016-08-16 → 2017-01-22 · 5 obs
○ 2016-08-03 15:32:06
● 2016-08-16 02:40:06
● 2017-01-22 00:32:08
○ 2017-03-22 07:05:22
○ 2026-02-14 23:12:02
○A2610:150:8019::1:aa322017-03-22 → 2017-03-22 · 4 obs
○ 2017-01-22 00:32:08
● 2017-03-22 07:05:22
○ 2017-07-03 08:10:34
○ 2026-02-14 23:12:02
○A2a00:1768:2001:63::46:982017-07-03 → 2017-07-03 · 4 obs
○ 2017-03-22 07:05:22
● 2017-07-03 08:10:34
○ 2019-10-27 18:15:58
○ 2026-02-14 23:12:02
○A46.166.184.982017-07-03 → 2017-07-03 · 4 obs
○ 2017-03-22 07:05:22
● 2017-07-03 08:10:34
○ 2019-10-27 18:15:58
○ 2026-02-14 23:12:02
○A50.116.70.1892016-05-14 → 2016-05-14 · 4 obs
○ 2016-04-21 06:38:36
● 2016-05-14 02:38:06
○ 2016-05-22 02:29:24
○ 2026-02-14 23:12:02
○A50.21.180.1002015-08-27 → 2015-09-29 · 4 obs
● 2015-08-27 03:43:34
● 2015-09-29 17:51:10
○ 2015-10-09 04:30:06
○ 2026-02-14 23:12:02
○A52.32.215.2222016-06-10 → 2016-06-24 · 5 obs
○ 2016-05-29 07:54:12
● 2016-06-10 10:56:30
● 2016-06-24 02:18:48
○ 2016-07-08 00:43:42
○ 2026-02-14 23:12:02
●A85.10.133.1192026-02-14 → 2026-02-14 · 3 obs
○ 2021-11-07 23:45:56
● 2026-02-14 23:12:00
● 2026-02-14 23:12:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, b0.nic.io, a2.nic.io, c0.nic.io-
a.ions4.a.io, ns2.a.io, ns1.a.io, ns3.a.io8 records

✅ Authoritative Response

Server: 185.136.96.251

NS records: ns4.a.io, ns2.a.io, ns1.a.io, ns3.a.io

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 604ms | Queries: -

📄 Records

TypeCountSample Data
A185.10.133.119
NS4ns2.a.io, ns1.a.io...
MX1a-io.mail.protection.outlook.com (pri: 0
TXT2MS=ms78015345, v=spf1 include:spf.protection.outlook.co
SOA1ns1.a.io support.a.io

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (ns1.a.io, ns2.a.io, ns3.a.io...)

AI analysis

a.io is a parent of ns3.a.io, ns2.a.io, ns4.a.io, www.a.io and dns2.a.io, plus a few other host names.

a.io points to a single IP number: 85.10.133.119.

Other host names, for instance www.worldofdomains.com, domainearl.com, foundationnames.com, upgrade.nyc and nabpad.com share IP numbers with a.io.

a.io is delegated to four name servers: ns1.a.io, ns2.a.io, ns3.a.io and ns4.a.io.

a.io shares name servers with other domains at least partially, for instance aserv.net, a.mk, earltindolbodyshop.com, a.gd and a.ms.

These name servers are often used with ns1.aserv.net, ns2.aserv.net, ns3.aserv.net, ns4.aserv.net and ns1.domainery.com.

Host names with two IP numbers:

ns1.a.io resolves to 2a06:fb00:1::1:251 and 185.136.96.251.

ns2.a.io resolves to 2a06:fb00:1::2:251 and 185.136.97.251.

ns3.a.io resolves to 2a06:fb00:1::3:251 and 185.136.98.251.

ns4.a.io resolves to 2a06:fb00:1::4:251 and 185.136.99.251.

The mail server for a.io is a-io.mail.protection.outlook.com.

The host a-io.mail.protection.outlook.com resolves to eleven IP numbers: 2a01:111:f403:f802::1, 2a01:111:f403:f802::3, 2a01:111:f403:f805::, 2a01:111:f403:f90f::, 52.101.9.2, 52.101.40.1, 52.101.40.4, 52.101.194.15, 207.46.163.138, 207.46.163.170 and 207.46.163.247.