ctfchallenge.org - robtex.com
ctfchallenge.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1774884686 | ||||||
Same first word
ctfchallenge.com |
ctfchallenge.org |
DNS History
8 records (8 active, 0 former)
●NSns1038.ui-dns.org2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●NSns1046.ui-dns.com2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●NSns1068.ui-dns.biz2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●MXmx00.ionos.co.uk2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●MXmx01.ionos.co.uk2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●A2001:8d8:100f:f000::2bb2026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
●A217.160.0.2282026-03-01 → 2026-03-30 · 2 obs
● 2026-03-30 15:57:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org... | - |
| ctfchallenge.org | ns1038.ui-dns.org, ns1046.ui-dns.com, ns1068.ui-dns.biz, ns1108.ui-dns.de | 2 records |
✅ Authoritative Response
Server:217.160.82.46
NS records: ns1038.ui-dns.org, ns1046.ui-dns.com, ns1068.ui-dns.biz, ns1108.ui-dns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctfchallenge.org (unsigned zone)
⏱️ Timing
Total: 542ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.228 |
| AAAA | 1 | 2001:8d8:100f:f000::2bb |
| NS | 4 | ns1068.ui-dns.biz, ns1108.ui-dns.de... |
| MX | 2 | mx01.ionos.co.uk (pri: 10), mx00.ionos.co.uk (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-eu.ionos.com ~all |
| SOA | 1 | ns1068.ui-dns.biz hostmaster.1und1.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1038.ui-dns.org, ns1038.ui-dns.org)
Analysis
IP Addresses
ctfchallenge.org points to two IP numbers: 2001:8d8:100f:f000::2bb and 217.160.0.228.
Other host names such as nejmat-sahara-tours.com, mbculina.de, mansionparty.fr, onlineessen.de and ralfschmidt-online.de share IP numbers with ctfchallenge.org.
Name Servers
ctfchallenge.org is delegated to four name servers: ns1068.ui-dns.biz, ns1046.ui-dns.com, ns1108.ui-dns.de and ns1038.ui-dns.org.
At least part of the name servers for ctfchallenge.org are shared with other domains, for instance stifter-service.de, xn--bersetzungs-service-49b.net, luedecke.com, cryptosoft.de and yorkshrman.co.uk.
these name servers are commonly used with the name servers ns1068.ui-dns.org, ns1068.ui-dns.com, ns1068.ui-dns.de, ns1038.ui-dns.de, ns1046.ui-dns.biz, ns1038.ui-dns.biz, ns1038.ui-dns.com, ns1046.ui-dns.org, ns1108.ui-dns.org and ns1108.ui-dns.biz.
Three IPs:
ns1108.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:108, 185.132.32.108 and 217.160.80.108.
Two IPs:
ns1068.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5144:100 and 217.160.81.68.
ns1046.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:522e:100 and 217.160.82.46.
ns1038.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5326:100 and 217.160.83.38.
Mail Servers
ctfchallenge.org is handled by two mail servers: mx00.ionos.co.uk and mx01.ionos.co.uk.
ctfchallenge.org uses the same mail server setup as other domains, for instance irishdance.co.uk, multiplierdotaudio.com, neilwlaw.com, theultimaterange.com and i-menu.co.
Some mail servers are shared between ctfchallenge.org and other domains, for instance digitalnotation.com.
Hostnames with a single IP
mx00.ionos.co.uk resolves to: 212.227.15.41.
mx01.ionos.co.uk resolves to: 217.72.192.67.