a.co - robtex.com

a.co

DNSSEC⚠️ Not signed
A44.215.138.88🇺🇸 Amazon
PTRec2-44-215-138-88.compute-1.amazonaws.com
A98.87.170.8🇺🇸 Amazon
A98.87.170.202🇺🇸 Amazon
NSdns-external-master.amazon.com ⭐
A204.74.108.1🇺🇸 MAINT-ID-12008
PTRpdns1.ultradns.net
NSpdns1.ultradns.net
A2001:502:f3ff::1🇺🇸 MAINT-ID-12008
PTRpdns1.ultradns.net
A204.74.108.1🇺🇸 MAINT-ID-12008
PTRpdns1.ultradns.net
NSpdns2.ultradns.net
A2610:a1:1014::1🇺🇸 MAINT-ID-12008
PTRpdns2.ultradns.net
A204.74.109.1🇺🇸 MAINT-ID-12008
PTRpdns2.ultradns.net
NSpdns3.ultradns.org
A2610:a1:1015::1🇺🇸 MAINT-ID-12008
PTRpdns3.ultradns.org
A199.7.68.1🇺🇸 MAINT-ID-12008
PTRpdns3.ultradns.org
NSpdns4.ultradns.org
A2001:502:4612::1🇺🇸 MAINT-ID-12008
PTRpdns4.ultradns.org
A199.7.69.1🇺🇸 MAINT-ID-12008
PTRpdns4.ultradns.org
NSpdns5.ultradns.info
A2610:a1:1016::1🇺🇸 MAINT-ID-12008
PTRpdns5.ultradns.info
A204.74.114.1🇺🇸 MAINT-ID-12008
PTRpdns5.ultradns.info
NSpdns6.ultradns.co.uk
A2610:a1:1017::1🇺🇸 MAINT-ID-12008
PTRpdns6.ultradns.co.uk
A204.74.115.1🇺🇸 MAINT-ID-12008
PTRpdns6.ultradns.co.uk
TXTv=spf1 -all
SOAdns-external-master.amazon.comroot@amazon.com serial=18

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co 🔒
NSb.registrydns.co 🔒
NSc.registrydns.co 🔒
NSd.registrydns.co 🔒
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759588016
rank #1244 globally
rank #5 in the tld
This domain "a.co" belongs to Amazon. It is a shortened URL used by Amazon to simplify sharing links to their site or specific products. The ".co" is a top-level domain, and the "a" is a second-level domain. The domain name system is hierarchical, and "a.co" is a shorter, easier-to-use version of their full website address.📈 Tranco rank: #3,520

Up

www.a.co

Same first word

a.bw
a.rgr.jp
a.farm
a.country
a.fyi
a.enterprises
a.link
a.day
a.co.tz
a.toys
a.taxi
a.cam
a.ie
a.gm
a.com.hr
a.gov.au
a.theater
a.org.ua
a.kz
a.org.pk
a.od.ua
a.fail
a.ks.ua
a.video
a.domains
a.zuerich
a.training
a.qh.cn
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.co.uk
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

Similar names

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
a.school
a.net.pl
a.org
a.dk
a.tv
a.com.se
a.gov.lv

DNS History

13 records (10 active, 3 former)

20162017201820192020202120222023202420252026NSdns-external-master.amazon.compdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.orgpdns5.ultradns.infopdns6.ultradns.co.ukA44.215.138.8898.87.170.20298.87.170.854.239.16.17954.239.20.24854.239.21.27
●NSdns-external-master.amazon.com2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns1.ultradns.net2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns2.ultradns.net2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns3.ultradns.org2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns4.ultradns.org2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns5.ultradns.info2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●NSpdns6.ultradns.co.uk2015-08-20 → 2026-02-24 · 2 obs
● 2015-08-20 02:31:44
● 2026-02-24 15:46:30
●A44.215.138.882026-02-15 → 2026-02-24 · 3 obs
○ 2021-08-02 20:52:00
● 2026-02-15 21:16:36
● 2026-02-24 15:46:30
○A54.239.16.1792015-08-20 → 2021-08-02 · 4 obs
● 2015-08-20 02:31:44
● 2021-08-02 20:52:00
○ 2026-02-15 21:16:36
○ 2026-02-24 15:46:30
○A54.239.20.2482015-08-20 → 2021-08-02 · 4 obs
● 2015-08-20 02:31:44
● 2021-08-02 20:52:00
○ 2026-02-15 21:16:36
○ 2026-02-24 15:46:30
○A54.239.21.272015-08-20 → 2021-08-02 · 4 obs
● 2015-08-20 02:31:44
● 2021-08-02 20:52:00
○ 2026-02-15 21:16:36
○ 2026-02-24 15:46:30
●A98.87.170.2022026-02-15 → 2026-02-24 · 3 obs
○ 2021-08-02 20:52:00
● 2026-02-15 21:16:36
● 2026-02-24 15:46:30
●A98.87.170.82026-02-15 → 2026-02-24 · 3 obs
○ 2021-08-02 20:52:00
● 2026-02-15 21:16:36
● 2026-02-24 15:46:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
a.copdns1.ultradns.net, pdns3.ultradns.org, pdns6.ultradns.co.uk, pdns5.ultradns.info...-

✅ Authoritative Response

Server: 204.74.114.1

NS records: pdns1.ultradns.net, pdns3.ultradns.org, pdns6.ultradns.co.uk, pdns5.ultradns.info, pdns2.ultradns.net, pdns4.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a.co (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

TypeCountSample Data
A398.87.170.202, 98.87.170.8...
NS6pdns1.ultradns.net, pdns2.ultradns.net...
TXT1v=spf1 -all
SOA1dns-external-master.amazon.com root.amaz

AI analysis

a.co is a parent of www.a.co.

Three IP numbers are pointed to by a.co: 44.215.138.88, 98.87.170.8 and 98.87.170.202.

Other host names, for instance ec2-98-87-170-8.compute-1.amazonaws.com, amz.onl, ec2-44-215-138-88.compute-1.amazonaws.com and ec2-98-87-170-202.compute-1.amazonaws.com share IP numbers with a.co.

a.co is delegated to seven name servers: dns-external-master.amazon.com, pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.

a.co at least partially shares name servers with other domains, for instance weeatimpossible.com, sdge.net, ffluor.com, vikingdirect.com and food4u.com.

These name servers are commonly used together with the name servers udns1.ultradns.net, udns2.ultradns.net, x1.amazonaws.com, x2.amazonaws.com, x3.amazonaws.org, x4.amazonaws.org, ns2.amzndns.com, ns2.amzndns.net, ns2.amzndns.org and ns2.amzndns.co.uk.

Host names with two IP numbers:

pdns5.ultradns.info points to 2610:a1:1016::1 and 204.74.114.1

pdns1.ultradns.net points to 2001:502:f3ff::1 and 204.74.108.1

pdns2.ultradns.net points to 2610:a1:1014::1 and 204.74.109.1

pdns3.ultradns.org points to 2610:a1:1015::1 and 199.7.68.1

pdns4.ultradns.org points to 2001:502:4612::1 and 199.7.69.1

pdns6.ultradns.co.uk points to 2610:a1:1017::1 and 204.74.115.1

Host names with one IP number:

dns-external-master.amazon.com points to 204.74.108.1

Host names that point to 204.74.108.1: pdns1.ultradns.net and dns-external-master.amazon.com