`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}
			PTR	`ns-53.awsdns-06.com`
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:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f26.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.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	2607:f8b0:4023:1015::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`yudfwta-in-f27.1e100.net`
		A	172.253.135.26^{🇺🇸 Google172.253.135.0/24}
			PTR	`yudfwta-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-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=2605091521

Subdomains

dev.study.cat

Same first word

study.co

study.biz

study.space

study.in

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.cash

study.cheap

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.land

study.world

study.es

study.ir

study.edu.ge

study.net

study.team

study.cafe

study.vic.gov.au

study.com.pk

study.sk

study.monash

study.ca

study.help

study.tj

study.technology

study.beauty

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.loans

study.tools

study.matrix.jp

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

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.dyndns.org

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 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●NSns-1983.awsdns-55.co.uk2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●NSns-53.awsdns-06.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●NSns-743.awsdns-28.net2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXalt1.aspmx.l.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXalt2.aspmx.l.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXalt3.aspmx.l.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXalt4.aspmx.l.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXaspmx.l.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com2026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●A67.199.248.122026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

●A67.199.248.132026-03-08 → 2026-05-09 · 2 obs

● 2026-03-08 08:50:38
● 2026-05-09 16:05:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cat	switch.nic.cat, anyc1.irondns.net, cat.pch.net, nsc.nic.de...	-
study.cat	ns-1983.awsdns-55.co.uk, ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org	-

✅ Authoritative Response

Server:205.251.199.191

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.cat (unsigned zone)

⏱️ Timing

Total: 919ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`67.199.248.12, 67.199.248.13`
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.`

Analysis

Hierarchy

The parent of dev.study.cat is study.cat.

IP Addresses

study.cat points to two IP numbers: 67.199.248.12 and 67.199.248.13.

Other host names such as mcohn.me, cbs.mw, links.optisigns.com, mattuhri.ch and abac.us share IPs with study.cat.

Name Servers

study.cat is delegated to 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 at least partially shares name servers with other domains, for instance evenbits.de, abcargent.com, simedarby.com.my, inf.us2.com and arrugia.com.