developer.cat - dns.ninja

developer.cat

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::270🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-0270.elastic-ssl.ui-r.com
A217.160.0.193🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSns-es.1and1-dns.es ⭐
A2001:8d8:fe:53:0:d9a0:5005:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-es.1and1-dns.es
A217.160.80.5🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-es.1and1-dns.es
NSns-es.1and1-dns.biz
A2001:8d8:fe:53:0:d9a0:5105:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-es.1and1-dns.biz
A217.160.81.5🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-es.1and1-dns.biz
NSns-es.1and1-dns.com
A2001:8d8:fe:53:0:d9a0:5205:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-es.1and1-dns.com
A217.160.82.5🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-es.1and1-dns.com
NSns-es.1and1-dns.org
A2001:8d8:fe:53:0:d9a0:5305:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns-es.1and1-dns.org
A217.160.83.5🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns-es.1and1-dns.org
MXmx00.ionos.es ⭐
A212.227.15.41🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2
PTRmx00.kundenserver.de
MXmx01.ionos.es ⭐
A217.72.192.67🇩🇪 IONOS-AS217.72.192.0/20 Web.de
PTRmx01.kundenserver.de
TXTv=spf1 include:_spf-eu.ionos.com ~all
SOAns-es.1and1-dns.eshostmaster@1and1.com 2017-04-08 #15

cat

DNSSEC🔒 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=2606042039

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developer.nab
developer.cz
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developer.email
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redevelop.us
developer.aero
developer.inf.br
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developer.ps
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developer.tel
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developer.cafe
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developer.run
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developer.lublin.pl
developer.si
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developer.ma
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developer.scb
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DNS History

14 records (8 active, 6 former)

2017201820192020202120222023202420252026NSns-es.1and1-dns.bizns-es.1and1-dns.comns-es.1and1-dns.esns-es.1and1-dns.orgMXmx00.ionos.esmx01.ionos.esmx00.1and1.esmx01.1and1.esA2001:8d8:100f:f000::270217.160.0.1932001:8d8:1001:11b3:5c11:6149:5f62:300d2001:8d8:1001:11b3:7f19:de63:ad59:d81a217.160.230.81217.160.247.20
●NSns-es.1and1-dns.biz2016-03-01 → 2026-06-04 · 2 obs
● 2016-03-01 20:59:58
● 2026-06-04 20:47:00
●NSns-es.1and1-dns.com2016-03-01 → 2026-06-04 · 2 obs
● 2016-03-01 20:59:58
● 2026-06-04 20:47:00
●NSns-es.1and1-dns.es2016-03-01 → 2026-06-04 · 2 obs
● 2016-03-01 20:59:58
● 2026-06-04 20:47:00
●NSns-es.1and1-dns.org2016-03-01 → 2026-06-04 · 2 obs
● 2016-03-01 20:59:58
● 2026-06-04 20:47:00
○MXmx00.1and1.es2016-03-01 → 2020-03-21 · 4 obs
● 2016-03-01 20:59:58
● 2020-03-21 05:22:30
○ 2026-02-17 10:38:30
○ 2026-06-04 20:47:00
●MXmx00.ionos.es2026-02-17 → 2026-06-04 · 3 obs
○ 2020-03-21 05:22:30
● 2026-02-17 10:38:30
● 2026-06-04 20:47:00
○MXmx01.1and1.es2016-03-01 → 2020-03-21 · 4 obs
● 2016-03-01 20:59:58
● 2020-03-21 05:22:30
○ 2026-02-17 10:38:30
○ 2026-06-04 20:47:00
●MXmx01.ionos.es2026-02-17 → 2026-06-04 · 3 obs
○ 2020-03-21 05:22:30
● 2026-02-17 10:38:30
● 2026-06-04 20:47:00
○A2001:8d8:1001:11b3:5c11:6149:5f62:300d2016-03-01 → 2016-03-01 · 3 obs
● 2016-03-01 20:59:58
○ 2016-07-01 02:35:38
○ 2026-06-04 20:47:00
○A2001:8d8:1001:11b3:7f19:de63:ad59:d81a2016-07-01 → 2016-07-01 · 4 obs
○ 2016-03-01 20:59:58
● 2016-07-01 02:35:38
○ 2017-04-02 05:55:58
○ 2026-06-04 20:47:00
●A2001:8d8:100f:f000::2702017-04-02 → 2026-06-04 · 3 obs
○ 2016-07-01 02:35:38
● 2017-04-02 05:55:58
● 2026-06-04 20:47:00
●A217.160.0.1932017-04-02 → 2026-06-04 · 3 obs
○ 2016-07-01 02:35:38
● 2017-04-02 05:55:58
● 2026-06-04 20:47:00
○A217.160.230.812016-07-01 → 2016-07-01 · 4 obs
○ 2016-03-01 20:59:58
● 2016-07-01 02:35:38
○ 2017-04-02 05:55:58
○ 2026-06-04 20:47:00
○A217.160.247.202016-03-01 → 2016-03-01 · 3 obs
● 2016-03-01 20:59:58
○ 2016-07-01 02:35:38
○ 2026-06-04 20:47:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
catcat.ns.nic.es, cat.pch.net, nsc.nic.de, anyc1.irondns.net...10 records
developer.catns-es.1and1-dns.org, ns-es.1and1-dns.biz, ns-es.1and1-dns.es, ns-es.1and1-dns.com-

✅ Authoritative Response

Server:217.160.83.5

NS records: ns-es.1and1-dns.org, ns-es.1and1-dns.biz, ns-es.1and1-dns.es, ns-es.1and1-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for developer.cat (unsigned zone)

⏱️ Timing

Total: 4590ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.193
AAAA12001:8d8:100f:f000::270
NS4ns-es.1and1-dns.es, ns-es.1and1-dns.com...
MX2mx00.ionos.es (pri: 10), mx01.ionos.es (pri: 10)
TXT1v=spf1 include:_spf-eu.ionos.com ~all
SOA1ns-es.1and1-dns.es hostmaster.1and1.com

📌 Glue Records Collected

Total: 10

In-bailiwick: 2 (switch.nic.cat, switch.nic.cat)

Out-of-bailiwick: 8 (cat.ns.nic.es, cat.pch.net, nsc.nic.de...)

Analysis

IP Addresses

developer.cat points to two IP numbers: 217.160.0.193 and 2001:8d8:100f:f000::270.

asm-supporters.fr, fingercode.de, menada.eu plus two other host names have IP numbers in common with developer.cat.

Name Servers

developer.cat carries NS records pointing to 4 name servers: ns-es.1and1-dns.biz, ns-es.1and1-dns.com, ns-es.1and1-dns.es and ns-es.1and1-dns.org.

At least some of developer.cat's name servers are shared with other domains, for example trendistopic.com, gumabe.com, loretxea.com and two more.

It is common to see these name servers paired with name servers ns1045.ui-dns.biz, ns1045.ui-dns.com and ns1045.ui-dns.de plus three others.

Four hostnames, each resolving to a pair of IP addresses: ns-es.1and1-dns.biz directs to 217.160.81.5 and 2001:8d8:fe:53:0:d9a0:5105:100; ns-es.1and1-dns.com directs to 217.160.82.5 and 2001:8d8:fe:53:0:d9a0:5205:100; ns-es.1and1-dns.es directs to 217.160.80.5 and 2001:8d8:fe:53:0:d9a0:5005:100; ns-es.1and1-dns.org directs to 217.160.83.5 and 2001:8d8:fe:53:0:d9a0:5305:100.

Mail Servers

developer.cat uses two mail servers, mx00.ionos.es and mx01.ionos.es.

The mail server setup of developer.cat matches that of other domains such as elcable.io, escritorislandia.com, 180-grados.com and two others.

Each of mx00.ionos.es and mx01.ionos.es has one IP address: mx00.ionos.es uses 212.227.15.41 and mx01.ionos.es uses 217.72.192.67.