study.cat - robtex.com

study.cat

DNSSEC⚠️ Not signed
A67.199.248.12πŸ‡ΊπŸ‡Έ Google67.199.248.0/24 BITLY/GCP
PTRcname.bitly.com
A67.199.248.13πŸ‡ΊπŸ‡Έ Google67.199.248.0/24 BITLY/GCP
NSns-1264.awsdns-30.org ⭐
A2600:9000:5304:f000::1πŸ‡ΊπŸ‡Έ Amazon2600:9000:5304::/48 - CloudFront
PTRns-1264.awsdns-30.org
A205.251.196.240πŸ‡ΊπŸ‡Έ Amazon205.251.196.0/24 prefix
PTRns-1264.awsdns-30.org
NSns-1983.awsdns-55.co.uk
A2600:9000:5307:bf00::1πŸ‡ΊπŸ‡Έ Amazon2600:9000:5307::/48 - CloudFront
PTRns-1983.awsdns-55.co.uk
A205.251.199.191πŸ‡ΊπŸ‡Έ Amazon205.251.199.0/24 prefix
PTRns-1983.awsdns-55.co.uk
NSns-53.awsdns-06.com
A2600:9000:5300:3500::1πŸ‡ΊπŸ‡Έ Amazon2600:9000:5300::/48 - CloudFront
PTRns-53.awsdns-06.com
A205.251.192.53πŸ‡ΊπŸ‡Έ Amazon205.251.192.0/24 prefix
PTRns-53.awsdns-06.com
NSns-743.awsdns-28.net
A2600:9000:5302:e700::1πŸ‡ΊπŸ‡Έ Amazon2600:9000:5302::/48 - CloudFront
PTRns-743.awsdns-28.net
A205.251.194.231πŸ‡ΊπŸ‡Έ Amazon205.251.194.0/24 prefix
PTRns-743.awsdns-28.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1bπŸ‡ΊπŸ‡Έ Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27πŸ‡ΊπŸ‡Έ Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1bπŸ‡ΊπŸ‡Έ Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26πŸ‡ΊπŸ‡Έ Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1aπŸ‡ΊπŸ‡Έ Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26πŸ‡ΊπŸ‡Έ Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1bπŸ‡ΊπŸ‡Έ Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26πŸ‡ΊπŸ‡Έ Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1aπŸ‡ΊπŸ‡Έ Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27πŸ‡ΊπŸ‡Έ Google142.250.96.0/24
PTRgg-in-f27.1e100.net
MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com(15)
TXTgoogle-site-verification=tQpod2wSjnZj7-zT7AWKt5D7x5arUVMZsusjp2K572A
TXTv=spf1 include:_spf.mlsend.com include:mail.zendesk.com include:_spf.google.c...
SOAns-1264.awsdns-30.orgawsdns-hostmaster@amazon.com serial=1

cat

DNSSECπŸ”’ Signed (DS record present)
NSanyc1.irondns.net ⭐
NScat.ns.nic.es
NScat.pch.net
NSnsc.nic.de
NSswitch.nic.cat
SOAanyc1.irondns.netdnsmaster@corenic.org serial=2603062113

Subdomains

Same first word

Similar names

DNS History

12 records (12 active, 0 former)

NSns-1264.awsdns-30.orgns-1983.awsdns-55.co.ukns-53.awsdns-06.comns-743.awsdns-28.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.comA67.199.248.1267.199.248.13
●NSns-1264.awsdns-30.org2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●NSns-1983.awsdns-55.co.uk2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●NSns-53.awsdns-06.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●NSns-743.awsdns-28.net2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXalt1.aspmx.l.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXalt2.aspmx.l.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXalt3.aspmx.l.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXalt4.aspmx.l.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXaspmx.l.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com2026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●A67.199.248.122026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42
●A67.199.248.132026-03-08 β†’ 2026-03-08 Β· 2 obs
● 2026-03-08 08:50:38
● 2026-03-08 08:50:42

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
catnsc.nic.de, cat.ns.nic.es, switch.nic.cat, cat.pch.net...-
study.catns-1983.awsdns-55.co.uk, ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org-

βœ… Authoritative Response

Server: 205.251.194.231

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

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study.cat (unsigned zone)

⏱️ Timing

Total: 939ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A267.199.248.12, 67.199.248.13
NS4ns-1264.awsdns-30.org, ns-1983.awsdns-55.co.uk...
MX6aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=tQpod2wSjnZj7-z, v=spf1 include:_spf.mlsend.com include:m
SOA1ns-1264.awsdns-30.org awsdns-hostmaster.

Analysis

Hierarchy

study.cat is a parent of dev.study.cat.

IP Addresses

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

Other host names, for instance mcohn.me, cbs.mw, links.optisigns.com, mattuhri.ch and abac.us share IP numbers 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, arrugia.com and aerisolat.com.

These name servers are commonly used with the name servers ns-1817.awsdns-35.co.uk.

Host names with two IP numbers:

ns-53.awsdns-06.com points to: 2600:9000:5300:3500::1 and 205.251.192.53.

ns-743.awsdns-28.net points to: 2600:9000:5302:e700::1 and 205.251.194.231.

ns-1264.awsdns-30.org points to: 2600:9000:5304:f000::1 and 205.251.196.240.

ns-1983.awsdns-55.co.uk points to: 2600:9000:5307:bf00::1 and 205.251.199.191.

Mail Servers

study.cat is handled by six mail servers: aspmx.l.google.com, yrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

study.cat shares mail servers with other domains at least in part, for instance headwaterstrails.org, ns500759.ns500698.ns500758.ns500758.ns500735.ns500735.ns500736.ns500698.ns500698.ns500576.ns500698.ns500576.ns500576.trackreceptor.com, ns500731.ns500671.ns500742.ns500754.ns500742.ns500731.ns500671.ns500688.ns500671.ns500649.ns500688.ns500291.ns500291.ns500153.tenderladiesbz.com, ns500731.ns500742.ns500754.ns500731.ns500704.ns500705.ns500688.ns500704.ns500705.ns500649.ns500666.tenderladiesbz.com and sumcobank.com.

these mail servers are often used with aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27.

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26.

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26.

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26.

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27.