dev.study.cat - dns.ninja
dev.study.cat
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-566.awsdns-06.net ⭐ | ||||||
| A | 2600:9000:5302:3600::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-566.awsdns-06.net | ||||||
| A | 205.251.194.54🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-566.awsdns-06.net | ||||||
| NS | ns-1523.awsdns-62.org | ||||||
| A | 2600:9000:5305:f300::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1523.awsdns-62.org | ||||||
| A | 205.251.197.243🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1523.awsdns-62.org | ||||||
| NS | ns-1590.awsdns-06.co.uk | ||||||
| A | 2600:9000:5306:3600::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1590.awsdns-06.co.uk | ||||||
| A | 205.251.198.54🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1590.awsdns-06.co.uk | ||||||
| NS | ns-56.awsdns-07.com | ||||||
| A | 2600:9000:5300:3800::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-56.awsdns-07.com | ||||||
| A | 205.251.192.56🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-56.awsdns-07.com | ||||||
| SOA | ns-566.awsdns-06.netawsdns-hostmaster@amazon.com serial=1 | ||||||
study.cat
| DNSSEC | ⚠️ Not signed | ||||||
| A | 67.199.248.12🇺🇸 Google67.199.248.0/24 BITLY/GCP | ||||||
| A | 67.199.248.13🇺🇸 Google67.199.248.0/24 BITLY/GCP | ||||||
| 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 ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| 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 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns-1523.awsdns-62.org2026-03-08 → 2026-06-06 · 2 obs
● 2026-06-06 18:48:48
●NSns-1590.awsdns-06.co.uk2026-03-08 → 2026-06-06 · 2 obs
● 2026-06-06 18:48:48
●NSns-56.awsdns-07.com2026-03-08 → 2026-06-06 · 2 obs
● 2026-06-06 18:48:48
●NSns-566.awsdns-06.net2026-03-08 → 2026-06-06 · 2 obs
● 2026-06-06 18:48:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cat | nsc.nic.de, cat.ns.nic.es, switch.nic.cat, cat.pch.net... | 10 records |
| study.cat | ns-743.awsdns-28.net, ns-1264.awsdns-30.org, ns-1983.awsdns-55.co.uk, ns-53.awsdns-06.com | - |
| dev.study.cat | ns-1523.awsdns-62.org, ns-1590.awsdns-06.co.uk, ns-56.awsdns-07.com, ns-566.awsdns-06.net | - |
✅ Authoritative Response
Server:205.251.192.56
NS records: ns-1523.awsdns-62.org, ns-1590.awsdns-06.co.uk, ns-56.awsdns-07.com, ns-566.awsdns-06.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for study.cat (unsigned zone)
⏱️ Timing
Total: 1020ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1523.awsdns-62.org, ns-1590.awsdns-06.co.uk... |
| SOA | 1 | ns-566.awsdns-06.net awsdns-hostmaster.a |
📌 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
Name Servers
Authority for dev.study.cat is delegated across 4 name servers: ns-56.awsdns-07.com, ns-566.awsdns-06.net, ns-1523.awsdns-62.org and ns-1590.awsdns-06.co.uk.
dev.study.cat has at least partial name server overlap with other domains, such as paxodessa.tv, d3bgcnobrkbceq.cloudfront.net, fcx3.app and two others.
ns-56.awsdns-07.com, ns-566.awsdns-06.net, ns-1523.awsdns-62.org and ns-1590.awsdns-06.co.uk all point to exactly two IP numbers each: ns-56.awsdns-07.com → 205.251.192.56 and 2600:9000:5300:3800::1; ns-566.awsdns-06.net → 205.251.194.54 and 2600:9000:5302:3600::1; ns-1523.awsdns-62.org → 205.251.197.243 and 2600:9000:5305:f300::1; ns-1590.awsdns-06.co.uk → 205.251.198.54 and 2600:9000:5306:3600::1.