study.cat - dns.ninja
study.cat
| DNSSEC | ⚠️ Not signed | ||||||
| A | 67.199.248.12 | ||||||
| A | 67.199.248.13 | ||||||
| NS | ns-1264.awsdns-30.org ⭐ | ||||||
| NS | ns-1983.awsdns-55.co.uk | ||||||
| NS | ns-53.awsdns-06.com | ||||||
| NS | ns-743.awsdns-28.net | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| A | 2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48 | ||||||
| PTR | yulhrs-in-f26.1e100.net | ||||||
| A | 192.178.223.26🇺🇸 Google192.178.223.0/24 | ||||||
| PTR | yulhrs-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 | 2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32 | ||||||
| PTR | yulnkjt-in-f26.1e100.net | ||||||
| A | 172.253.145.26🇺🇸 Google172.253.145.0/24 | ||||||
| PTR | yulnkjt-in-f26.1e100.net | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| 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.orgawsdns-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.netdnsmaster@corenic.org serial=2606041008 | ||||||
Subdomains
dev.study.cat |
DNS History
12 records (12 active, 0 former)
●NSns-1264.awsdns-30.org2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●NSns-1983.awsdns-55.co.uk2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●NSns-53.awsdns-06.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●NSns-743.awsdns-28.net2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXalt1.aspmx.l.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXalt2.aspmx.l.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXalt3.aspmx.l.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXalt4.aspmx.l.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXaspmx.l.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●MXyrqqjh2enscdatcgkrep4zygwnjs2asnch7pljjru54sax6fdkcq.mx-verification.google.com2026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●A67.199.248.122026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
●A67.199.248.132026-03-08 → 2026-06-04 · 2 obs
● 2026-06-04 10:19:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cat | cat.ns.nic.es, cat.pch.net, nsc.nic.de, anyc1.irondns.net... | 10 records |
| study.cat | ns-1264.awsdns-30.org, ns-743.awsdns-28.net, ns-53.awsdns-06.com, ns-1983.awsdns-55.co.uk | - |
✅ Authoritative Response
Server:205.251.196.240
NS records: ns-1264.awsdns-30.org, ns-743.awsdns-28.net, ns-53.awsdns-06.com, ns-1983.awsdns-55.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for study.cat (unsigned zone)
⏱️ Timing
Total: 3028ms | 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, cat.pch.net...)
Analysis
Hierarchy
study.cat is the parent zone for dev.study.cat.
IP Addresses
study.cat points to two IP numbers: 67.199.248.12 and 67.199.248.13.
Name Servers
The DNS delegation for study.cat covers 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.
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.
The hostnames aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com each direct to two IP addresses — aspmx.l.google.com to 192.178.223.26 and 2a00:1450:4009:c0f::1a, alt1.aspmx.l.google.com to 192.178.128.27 and 2607:f8b0:4023:2801::1a, and alt2.aspmx.l.google.com to 172.253.145.26 and 2607:f8b0:4023:3003::1a.