study.cat - robtex.com
study.cat
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.netdnsmaster@corenic.org serial=2605312353 | ||||||
Subdomains
dev.study.cat |
Same first word
Similar names
DNS History
12 records (12 active, 0 former)
●NSns-1264.awsdns-30.org2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●NSns-1983.awsdns-55.co.uk2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●NSns-53.awsdns-06.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●NSns-743.awsdns-28.net2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXalt1.aspmx.l.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXalt2.aspmx.l.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXalt3.aspmx.l.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXalt4.aspmx.l.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXaspmx.l.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com2026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●A67.199.248.122026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
●A67.199.248.132026-03-08 → 2026-06-01 · 2 obs
● 2026-06-01 00:13:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cat | anyc1.irondns.net, switch.nic.cat, nsc.nic.de, cat.pch.net... | 10 records |
| study.cat | ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org, ns-1983.awsdns-55.co.uk | - |
✅ Authoritative Response
Server:205.251.192.53
NS records: ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org, ns-1983.awsdns-55.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for study.cat (unsigned zone)
⏱️ Timing
Total: 1104ms | 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 (anyc1.irondns.net, nsc.nic.de, cat.pch.net...)
Analysis
Hierarchy
study.cat is a parent domain of dev.study.cat.
IP Addresses
study.cat points to two IP numbers: 67.199.248.12 and 67.199.248.13.
mcohn.me, cbs.mw, links.optisigns.com plus two other host names have IP numbers in common with study.cat.
Name Servers
study.cat carries NS records pointing to 4 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 shares at least some of its name servers with other domains, including evenbits.de, abcargent.com, simedarby.com.my and two others.
The host names ns-53.awsdns-06.com, ns-743.awsdns-28.net, ns-1264.awsdns-30.org and ns-1983.awsdns-55.co.uk each resolve to two IP addresses: ns-53.awsdns-06.com resolves to 205.251.192.53 and 2600:9000:5300:3500::1; ns-743.awsdns-28.net resolves to 205.251.194.231 and 2600:9000:5302:e700::1; ns-1264.awsdns-30.org resolves to 205.251.196.240 and 2600:9000:5304:f000::1; ns-1983.awsdns-55.co.uk resolves to 205.251.199.191 and 2600:9000:5307:bf00::1.
Mail Servers
study.cat is handled by 6 mail servers, aspmx.l.google.com, yrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com, alt1.aspmx.l.google.com and three other.
At least some of the mail servers used by study.cat are shared with other domains: 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 and two others among them.
It is common to find these mail servers paired with the mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com, as well as two others.
Host names pointing to two IP addresses:
aspmx.l.google.com maps to two IP addresses — 172.253.62.26 and 2607:f8b0:4004:c1d::1a.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com maps to two IP addresses — 173.194.76.26 and 2a00:1450:400c:c00::1b.