sertu.org - robtex.com
sertu.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=1784146545 | ||||||
Same first word
Similar names
DNS History
8 records (8 active, 0 former)
●NSns1033.ui-dns.biz2021-09-18 → 2026-07-15 · 2 obs
● 2026-07-15 20:47:04
●NSns1071.ui-dns.org2021-09-18 → 2026-07-15 · 2 obs
● 2026-07-15 20:47:04
●NSns1120.ui-dns.com2021-09-18 → 2026-07-15 · 2 obs
● 2026-07-15 20:47:04
●A2001:8d8:100f:f000::24a2021-09-18 → 2026-07-15 · 2 obs
● 2026-07-15 20:47:04
●A217.160.0.32021-09-18 → 2026-07-15 · 2 obs
● 2026-07-15 20:47:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| sertu.org | ns1033.ui-dns.biz, ns1071.ui-dns.org, ns1120.ui-dns.com, ns1031.ui-dns.de | 2 records |
✅ Authoritative Response
Server:185.132.32.31
NS records: ns1033.ui-dns.biz, ns1071.ui-dns.org, ns1120.ui-dns.com, ns1031.ui-dns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sertu.org (unsigned zone)
⏱️ Timing
Total: 683ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.3 |
| AAAA | 1 | 2001:8d8:100f:f000::24a |
| NS | 4 | ns1031.ui-dns.de, ns1120.ui-dns.com... |
| MX | 2 | mx00.ionos.es (pri: 10), mx01.ionos.es (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-eu.ionos.com ~all |
| SOA | 1 | ns1071.ui-dns.org hostmaster.1und1.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1071.ui-dns.org, ns1071.ui-dns.org)
Analysis
IP Addresses
sertu.org has two IP addresses: 217.160.0.3 and 2001:8d8:100f:f000::24a
www.hbr.de, cfuonline.eu, freetobeshe.com and two other host names share IP numbers with sertu.org.
Name Servers
The authoritative name servers for sertu.org are ns1033.ui-dns.biz, ns1120.ui-dns.com, ns1031.ui-dns.de and ns1071.ui-dns.org.
There is at least partial name server overlap between sertu.org and other domains — leben-lieben-lachen.net, hughmcelvannamenswear.com, michelsonit.net and two more among them.
These name servers regularly appear alongside ns1120.ui-dns.org, ns1031.ui-dns.org, ns1031.ui-dns.biz and 7 other name servers in NS record sets.
All four hostnames — ns1033.ui-dns.biz, ns1120.ui-dns.com, ns1031.ui-dns.de and ns1071.ui-dns.org — resolve to two IP numbers apiece: ns1033.ui-dns.biz to 185.132.33.33 and 2607:f1c0:fe:53:185:132:33:33; ns1120.ui-dns.com to 217.160.82.120 and 2001:8d8:fe:53:0:d9a0:5278:100; ns1031.ui-dns.de to 185.132.32.31 and 2607:f1c0:fe:53:185:132:32:31; ns1071.ui-dns.org to 217.160.83.71 and 2001:8d8:fe:53:0:d9a0:5347:100.
Mail Servers
Mail for sertu.org is handled by two mail servers — mx00.ionos.es and mx01.ionos.es.
sertu.org uses an identical mail server configuration to several other domains — among them elym.es, balducentras.com, movilnen.com and two more.
mx00.ionos.es → 212.227.15.41 and mx01.ionos.es → 217.72.192.67: one IP number per host name.