`study.cat`

DNSSEC	⚠️ Not signed
A	67.199.248.12^{🇺🇸 Google67.199.248.0/24 BITLY/GCP}
		PTR	`cname.bitly.com`
A	67.199.248.13^{🇺🇸 Google67.199.248.0/24 BITLY/GCP}
NS	`ns-1264.awsdns-30.org` ⭐
		A	2600:9000:5304:f000::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1264.awsdns-30.org`
		A	205.251.196.240^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1264.awsdns-30.org`
NS	`ns-1983.awsdns-55.co.uk`
		A	2600:9000:5307:bf00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1983.awsdns-55.co.uk`
		A	205.251.199.191^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1983.awsdns-55.co.uk`
NS	`ns-53.awsdns-06.com`
		A	2600:9000:5300:3500::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-53.awsdns-06.com`
		A	205.251.192.53^{🇺🇸 Amazon205.251.192.0/24 prefix}
NS	`ns-743.awsdns-28.net`
		A	2600:9000:5302:e700::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-743.awsdns-28.net`
		A	205.251.194.231^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-743.awsdns-28.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
MX	`yrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com`⁽¹⁵⁾
TXT	`google-site-verification=tQpod2wSjnZj7-zT7AWKt5D7x5arUVMZsusjp2K572A`
TXT	`v=spf1 include:_spf.mlsend.com include:mail.zendesk.com include:_spf.google.c...`
SOA	`ns-1264.awsdns-30.org`awsdns-hostmaster@amazon.com serial=1

`cat`

	DNSSEC	🔒 Signed (DS record present)
	NS	`anyc1.irondns.net` ⭐
	NS	`cat.ns.nic.es`
	NS	`cat.pch.net`
	NS	`nsc.nic.de`
	NS	`switch.nic.cat`
	SOA	`anyc1.irondns.net`dnsmaster@corenic.org serial=2607231313

Subdomains

dev.study.cat

Same first word

study.co

study.biz

study.bible

study.ne.jp

study.blue

study.express

study.be

study.co.uk

study.today

study.ne.kr

study.no

study.new

study.bet

study.life

study.training

study.boats

study.lv

study.su

study.academy

study.mobi

study.group

study.ly

study.uz

study.cz

study.skin

study.center

study.to

study.co.il

study.by

study.com.mx

study.gr

study.at

study.mn

study.kiev.ua

study.support

study.fi

study.credit

study.church

study.sa

study.land

study.world

study.es

study.ir

study.net

study.team

study.cafe

study.vic.gov.au

study.com.pk

study.sk

study.monash

study.ca

study.ac.id

study.help

study.tj

study.technology

study.beauty

study.tube

study.guide

study.id

study.ltd

study.black

study.cat

study.us

study.org

study.directory

study.nl

study.dk

study.tours

study.kz

study.com.pl

study.de

study.edu.vn

study.uk.net

study.company

study.lu

study.place

study.ua

study.my

study.gov.pl

study.foundation

study.eu

study.agency

study.ie

study.com

study.mba

study.engineering

study.se

study.go.kr

study.computer

study.ru

study.tools

study.matrix.jp

study.brussels

study.it

study.gr.jp

study.travel

study

study.mx

study.in.th

study.direct

study.zone

study.jp

study.co.jp

study.cm

study.kg

study.tw

study.run

Similar names

dusty.tv

dusty.ru

dyust.io

dusty.nl

dusty.dk

dusty.work

ystud.com

dusty.com

tydus.com

sutdy.com

dusty.ee

dusty.us

dstuy.com

dusty.co.uk

dusty.it

dusty.kasserver.com

dusty.com.br

tudsy.com

tydus.org

dusty.tech

yduts.com

stydu.ru

tudsy.online

tydus.it

dusty.ca

dusty.co

sduty.com

tydus.net

duyts.nl

dusty.org

dusty.codes

dutys.com

duyts.amsterdam

dusty.se

dusty.cz

dusty.readthedocs.io

dusty.gr

dusty.no

dusty.page

stduy.com

dusty.wtf

DNS History

12 records (12 active, 0 former)

●NSns-1264.awsdns-30.org2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●NSns-1983.awsdns-55.co.uk2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●NSns-53.awsdns-06.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●NSns-743.awsdns-28.net2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXalt1.aspmx.l.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXalt2.aspmx.l.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXalt3.aspmx.l.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXalt4.aspmx.l.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXaspmx.l.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com2026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●A67.199.248.122026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

●A67.199.248.132026-03-08 → 2026-07-23 · 2 obs

● 2026-03-08 08:50:38
● 2026-07-23 13:53:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cat	cat.ns.nic.es, switch.nic.cat, nsc.nic.de, cat.pch.net...	10 records
study.cat	ns-1264.awsdns-30.org, ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1983.awsdns-55.co.uk	-

✅ Authoritative Response

Server:205.251.196.240

NS records: ns-1264.awsdns-30.org, ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1983.awsdns-55.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.cat (unsigned zone)

⏱️ Timing

Total: 1045ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`67.199.248.13, 67.199.248.12`
NS	4	`ns-1264.awsdns-30.org, ns-1983.awsdns-55.co.uk...`
MX	6	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=tQpod2wSjnZj7-z, v=spf1 include:_spf.mlsend.com include:m`
SOA	1	`ns-1264.awsdns-30.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 10

In-bailiwick: 2 (switch.nic.cat, switch.nic.cat)

Out-of-bailiwick: 8 (cat.ns.nic.es, cat.ns.nic.es, nsc.nic.de...)

Analysis

Hierarchy

study.cat is the parent zone for dev.study.cat.

IP Addresses

study.cat directs to two IP numbers, 67.199.248.12 and 67.199.248.13

Among the host names that share IP numbers with study.cat are mcohn.me, cbs.mw, links.optisigns.com and two others.

Name Servers

The domain study.cat is delegated to these four name servers: ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org and ns-1983.awsdns-55.co.uk.

study.cat partially shares its NS delegation with several other domains, including evenbits.de, abcargent.com, simedarby.com.my and two others.

ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org and ns-1983.awsdns-55.co.uk each carry two IP addresses. ns-53.awsdns-06.com has 205.251.192.53 and 2600:9000:5300:3500::1; ns-743.awsdns-28.net has 205.251.194.231 and 2600:9000:5302:e700::1; ns-1264.awsdns-30.org has 205.251.196.240 and 2600:9000:5304:f000::1; ns-1983.awsdns-55.co.uk has 205.251.199.191 and 2600:9000:5307:bf00::1.