`ac`

DNSSEC	🔒 Signed (DS record present)
NS	`a0.nic.ac` ⭐ 🔒
		A	2a01:8840:9e::1^{🇮🇪 AFILIAS-NST-ALTDB}
			PTR	`a0.nic.ac`
		A	65.22.160.1^{🇺🇸 AFILIAS-NST-ALTDB}
			PTR	`a0.nic.ac`
NS	`a2.nic.ac` 🔒
		A	2a01:8840:a1::1^{🇮🇪 AFiLIAS-SECONDARY-DNS}
			PTR	`a2.nic.ac`
		A	65.22.163.1^{🇺🇸 AFiLIAS-SECONDARY-DNS}
			PTR	`a2.nic.ac`
NS	`b0.nic.ac` 🔒
		A	2a01:8840:9f::1^{🇮🇪 AFILIAS-NST-ALTDB}
			PTR	`b0.nic.ac`
		A	65.22.161.1^{🇺🇸 AFILIAS-NST-ALTDB}
			PTR	`b0.nic.ac`
NS	`c0.nic.ac` 🔒
		A	2a01:8840:a0::1^{🇮🇪 AFILIAS-NST-ALTDB}
			PTR	`c0.nic.ac`
		A	65.22.162.1^{🇺🇸 AFILIAS-NST-ALTDB}
			PTR	`c0.nic.ac`
SOA	`a0.nic.ac`hostmaster@donuts.email serial=1771848902

`(root)`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.root-servers.net` ⭐ ⚠️ Not in parent delegation
	NS	`b.root-servers.net` ⚠️ Not in parent delegation
	NS	`c.root-servers.net` ⚠️ Not in parent delegation
	NS	`d.root-servers.net` ⚠️ Not in parent delegation
	NS	`e.root-servers.net` ⚠️ Not in parent delegation
	NS	`f.root-servers.net` ⚠️ Not in parent delegation
	NS	`g.root-servers.net` ⚠️ Not in parent delegation
	NS	`h.root-servers.net` ⚠️ Not in parent delegation
	NS	`i.root-servers.net` ⚠️ Not in parent delegation
	NS	`j.root-servers.net` ⚠️ Not in parent delegation
	NS	`k.root-servers.net` ⚠️ Not in parent delegation
	NS	`l.root-servers.net` ⚠️ Not in parent delegation
	NS	`m.root-servers.net` ⚠️ Not in parent delegation
	SOA	`a.root-servers.net`nstld@verisign-grs.com 2026-02-16 #1

PTR for

154.226.76.134.in-addr.arpa

140.226.76.134.in-addr.arpa

141.226.76.134.in-addr.arpa

134.226.76.134.in-addr.arpa

135.226.76.134.in-addr.arpa

Up

unicorn.ac

iblt.ac

dlm.ac

ntu.ac

ict.ac

eastman.ac

acn.ac

nail.ac

dream.ac

egger.ac

tag.ac

au.ac

cac.ac

bsd.ac

chess.ac

wecima.ac

wlv.ac

kidsnote.ac

edc.ac

j.ac

liga.ac

av.ac

franke.ac

kane.ac

cambria.ac

sim.ac

pdf.ac

init.ac

sa.ac

chiri.ac

ub.ac

cubos.ac

acacia.ac

weh.ac

streameast.ac

biotr.ac

osl.ac

yedam.ac

dmc.ac

sdc.ac

denh.ac

vy.ac

eduacademy.ac

zero.ac

queue.ac

ncn.ac

min.ac

ashoo.ac

grim.ac

earnest.ac

homedepot.ac

biztech.ac

dl-raw.ac

rde.ac

wcostream.ac

alavi.ac

ach.ac

allianz.ac

mueller.ac

kink.ac

khotruyen.ac

new.ac

han.ac

irui.ac

dronecollege.ac

recharge.ac

(0x6c6f6c697461).ac

jpn.ac

bbc.ac

textbook.ac

myaie.ac

berger.ac

m.ac

primewire.ac

swoosh.ac

doctors.ac

waaw.ac

feedback.ac

nxt.ac

johansen.ac

tonstudio.ac

devel.ac

inspira.ac

iitk.ac

hmp.ac

french-stream.ac

lse.ac

macauslot.ac

quanta.ac

uea.ac

flixter.ac

passport.ac

gold.ac

lsys.ac

f.ac

ivan.ac

hyper.ac

piano.ac

ioms.ac

akros.ac

Same first word

ac

ac.ac.nz

ac.rio

ac.by

ac.st

ac.cx

ac.gy

ac.org.br

ac.gov.br

ac.cat

ac.amsterdam

ac.edu

ac.mw

ac.gr

ac.de

ac.ac.cy

ac.co.at

ac.ae

ac.gt

ac.ink

ac.com.ar

ac.net.pl

ac.com.au

ac.tz

ac.vc

ac.rs.gov.br

ac.game

ac.edu.ph

ac.cc

ac.be

ac.je

ac.il

ac.pa

ac.bialystok.pl

ac.lv

ac.rs

ac.com.ru

ac.gg

ac.education

ac.com.tr

ac.wtf

ac.markets

ac.tc

ac.vn

ac.capital

ac.gl

ac.contractors

ac.pr

ac.co.kr

ac.ge

ac.ms

ac.is

ac.th

ac.com.my

ac.tools

ac.net

ac.nz

ac.ac

ac.dk

ac.milan.it

ac.uk

ac.zw

ac.ni

ac.s3.amazonaws.com

ac.gen.tr

ac.kalisz.pl

ac.ee

ac.com.do

ac.uy

ac.cab

ac.at

ac.nl

ac.ir

ac.net.au

ac.mu

ac.ly

ac.ph

ac.services

ac.co.zw

ac.health

ac.dj

ac.ai

ac.investments

ac.id

ac.sc

ac.me

ac.co

ac.edu.au

ac.cy

ac.mz

ac.com.pl

ac.kharkov.ua

ac.co.il

ac.mn

ac.in.ua

ac.company

ac.in

ac.gov.ru

ac.ma

ac.kz

ac.mt

ac.com.py

ac.co.nz

ac.kr

ac.com.ro

ac.ls

ac.or.kr

ac.pl

ac.cl

ac.com.ua

ac.dev

ac.run

ac.bz

ac.s3-website-us-east-1.amazonaws.com

ac.co.in

ac.donetsk.ua

ac.cz

ac.am

ac.lk

ac.cm

ac.la

ac.ru

ac.life

ac.gd

ac.repair

ac.leg.br

ac.si

ac.ua

ac.msk.su

ac.s3-ap-northeast-1.amazonaws.com

ac.cr

ac.tn

ac.zone

ac.supply

ac.care

ac.vu

ac.cn

ac.fun

ac.net.ru

ac.com

ac.no

Similar names

ca.dev

ca.kz

ca.statebank

ca.nu

ca.sg

ca.gp

ca.ws

ca.com.se

ca.vu

ca.tv

ca.guru

ca.exchange

ca.s3-website-us-east-1.amazonaws.com

ca.net

ca.gov.sa

ca.co.za

ca.gob.ar

ca.xyz

ca.s3-us-west-2.amazonaws.com

ca.by

ca.freetls.fastly.net

ca.surf

ca.ph

ca.s3-website.us-east-2.amazonaws.com

ca.nl

ca.pe.it

ca.abbott

ca.tc

ca.org

ca.ac

ca.io

ca.uy

ca.cx

ca.cz

ca.ru

ca.be

ca.no

ca.taxi

ca.de

ca.or.kr

ca.trafficmanager.net

ca.to

ca.mg.gov.br

ca.gov.vn

ca.debian.net

ca.uz

ca.eu.org

ca.gg

ca.com.sg

ca.land

ca.com

ca.com.au

ca.net.au

ca.co.th

ca.su

DNS History

19 records (4 active, 15 former)

○NSa.nic.ac2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

○NSa.ns13.net2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

●NSa0.nic.ac2017-06-05 → 2026-02-23 · 3 obs

○ 2017-05-31 18:02:12
● 2017-06-05 02:13:58
● 2026-02-23 20:13:56

●NSa2.nic.ac2017-10-06 → 2026-02-23 · 3 obs

○ 2017-10-03 18:47:40
● 2017-10-06 15:06:24
● 2026-02-23 20:13:56

○NSb.nic.ac2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

○NSb.nic.io2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

○NSb.ns13.net2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

●NSb0.nic.ac2017-06-05 → 2026-02-23 · 3 obs

○ 2017-05-31 18:02:12
● 2017-06-05 02:13:58
● 2026-02-23 20:13:56

●NSc0.nic.ac2017-06-05 → 2026-02-23 · 3 obs

○ 2017-05-31 18:02:12
● 2017-06-05 02:13:58
● 2026-02-23 20:13:56

○NSns-a1.ac2016-02-23 → 2019-03-04 · 7 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2016-05-25 15:42:20
○ 2016-05-28 23:48:58
● 2019-03-04 09:08:36
○ 2019-03-07 11:31:58
○ 2026-02-23 20:13:56

○NSns-a2.ac2016-02-23 → 2017-10-03 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2017-10-03 18:47:40
○ 2017-10-06 15:06:24
○ 2026-02-23 20:13:56

○NSns-a3.ac2016-02-23 → 2019-03-04 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2019-03-04 09:08:36
○ 2019-03-07 11:31:58
○ 2026-02-23 20:13:56

○NSns-a4.ac2016-02-23 → 2017-10-03 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2017-10-03 18:47:40
○ 2017-10-06 15:06:24
○ 2026-02-23 20:13:56

○NSns-d1.ac2016-02-23 → 2017-05-31 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2017-05-31 18:02:12
○ 2017-06-05 02:13:58
○ 2026-02-23 20:13:56

○NSns-l1.ac2016-02-23 → 2017-05-31 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2017-05-31 18:02:12
○ 2017-06-05 02:13:58
○ 2026-02-23 20:13:56

○NSns-y1.ac2016-02-23 → 2017-05-31 · 5 obs

○ 2016-02-22 09:28:02
● 2016-02-23 23:14:30
● 2017-05-31 18:02:12
○ 2017-06-05 02:13:58
○ 2026-02-23 20:13:56

○NSns1.communitydns.net2015-09-03 → 2017-06-10 · 8 obs

● 2015-09-03 17:37:28
● 2016-02-23 23:14:30
○ 2016-02-25 15:36:40
○ 2016-05-25 15:42:20
● 2016-05-28 23:48:58
● 2017-06-10 15:28:46
○ 2017-06-12 00:14:16
○ 2026-02-23 20:13:56

○NSns3.icb.co.uk2015-09-03 → 2016-02-22 · 4 obs

● 2015-09-03 17:37:28
● 2016-02-22 09:28:02
○ 2016-02-23 23:14:30
○ 2026-02-23 20:13:56

○A193.223.78.2102015-09-03 → 2016-09-14 · 4 obs

● 2015-09-03 17:37:28
● 2016-09-14 14:23:48
○ 2016-09-15 22:32:00
○ 2026-02-23 20:13:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ac	a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac	-

✅ Authoritative Response

Server: 65.22.160.1

NS records: a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 188ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`c0.nic.ac, a2.nic.ac...`
SOA	1	`a0.nic.ac hostmaster.donuts.email`

AI analysis

ac is a parent of unicorn.ac, iblt.ac, dlm.ac, ntu.ac and ict.ac, along with thousands of other host names.

ac is delegated to four name servers: a0.nic.ac, a2.nic.ac, b0.nic.ac and c0.nic.ac.

ac shares name servers with other domains at least partially, for example nic.ac.

Host names with two IP numbers:

a0.nic.ac points to: 2a01:8840:9e::1 and 65.22.160.1.

a2.nic.ac points to: 2a01:8840:a1::1 and 65.22.163.1.

b0.nic.ac points to: 2a01:8840:9f::1 and 65.22.161.1.

c0.nic.ac points to: 2a01:8840:a0::1 and 65.22.162.1.

ac - robtex.com

ac

(root)

PTR for

Up

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

AI analysis

`ac`

`(root)`