isu-wf.com - robtex.com
isu-wf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 141.41.9.103🇩🇪 DFN141.41.0.0/16 -FH-WOLF | ||||||
| PTR | isu-wf.de | ||||||
| NS | dns1.sonia.de ⭐ | ||||||
| A | 2001:638:60a:a001::250🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| A | 141.41.1.250🇩🇪 DFN141.41.0.0/16 -FH-WOLF | ||||||
| PTR | dns1.sonia.de | ||||||
| NS | dns-1.serv.uni-osnabrueck.de | ||||||
| A | 2001:638:508:f50::83ad:f501🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | dns-1.serv.uni-osnabrueck.de | ||||||
| A | 131.173.245.1🇩🇪 DFN131.173.0.0/16 UOS | ||||||
| PTR | dns-1.serv.uni-osnabrueck.de | ||||||
| NS | dns2.sonia.de ⚠️ Not in parent delegation | ||||||
| A | 2001:638:60a:a001::150🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| A | 141.41.1.150🇩🇪 DFN141.41.0.0/16 -FH-WOLF | ||||||
| PTR | dns2.sonia.de | ||||||
| MX | mx1.sonia.de ⭐ | ||||||
| A | 141.41.1.237🇩🇪 DFN141.41.0.0/16 -FH-WOLF | ||||||
| PTR | mx1.sonia.de | ||||||
| MX | mx2.sonia.de ⭐ | ||||||
| A | 141.41.1.238🇩🇪 DFN141.41.0.0/16 -FH-WOLF | ||||||
| PTR | mx2.sonia.de | ||||||
| TXT | HARICA-IQgKwHNFg9rj0fSvkId | ||||||
| SOA | dns1.sonia.dehostmaster@sonia.de 2025-07-07 #2 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1781723615 | ||||||
Same first word
DNS History
8 records (6 active, 2 former)
●NSdns-1.serv.uni-osnabrueck.de2015-09-01 → 2026-06-17 · 2 obs
● 2026-06-17 19:36:44
○MXmailgate1.sonia.de2015-09-01 → 2019-02-14 · 4 obs
● 2019-02-14 05:58:56
○ 2026-02-24 05:03:28
○ 2026-06-17 19:36:44
○MXmailgate2.sonia.de2015-09-01 → 2019-02-14 · 4 obs
● 2019-02-14 05:58:56
○ 2026-02-24 05:03:28
○ 2026-06-17 19:36:44
●MXmx1.sonia.de2026-02-24 → 2026-06-17 · 3 obs
● 2026-02-24 05:03:28
● 2026-06-17 19:36:44
●MXmx2.sonia.de2026-02-24 → 2026-06-17 · 3 obs
● 2026-02-24 05:03:28
● 2026-06-17 19:36:44
●A141.41.9.1032026-02-24 → 2026-06-17 · 2 obs
● 2026-06-17 19:36:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| isu-wf.com | dns-1.serv.uni-osnabrueck.de, dns1.sonia.de | - |
✅ Authoritative Response
Server:131.173.245.1
NS records: dns-1.serv.uni-osnabrueck.de, dns1.sonia.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isu-wf.com (unsigned zone)
⏱️ Timing
Total: 789ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 141.41.9.103 |
| NS | 3 | dns1.sonia.de, dns2.sonia.de... |
| MX | 2 | mx2.sonia.de (pri: 10), mx1.sonia.de (pri: 10) |
| TXT | 1 | HARICA-IQgKwHNFg9rj0fSvkId |
| SOA | 1 | dns1.sonia.de hostmaster.sonia.de |
Analysis
IP Addresses
isu-wf.com resolves to one IP address: 141.41.9.103.
www.sonia.de, ostfalia.de, www.salzgitter-forum-mobilitaet.de and two other host names share IP numbers with isu-wf.com.
Name Servers
isu-wf.com has three name servers — dns1.sonia.de, dns2.sonia.de and dns-1.serv.uni-osnabrueck.de.
isu-wf.com has at least partial name server overlap with other domains, such as hbk-bs.de, textiles-gestalten.uni-osnabrueck.de, oberhofprediger.de and two others.
dns-2.serv.uni-osnabrueck.de, dns-3.serv.uni-osnabrueck.de and deneb.dfn.de — plus 4 other name servers — are commonly paired with these name servers.
Each of dns1.sonia.de, dns2.sonia.de and dns-1.serv.uni-osnabrueck.de points to two IP numbers. dns1.sonia.de points to 141.41.1.250 and 2001:638:60a:a001::250. dns2.sonia.de points to 141.41.1.150 and 2001:638:60a:a001::150. dns-1.serv.uni-osnabrueck.de points to 131.173.245.1 and 2001:638:508:f50::83ad:f501.
Mail Servers
Mail for isu-wf.com is handled by two mail servers — mx1.sonia.de and mx2.sonia.de.
isu-wf.com uses an identical mail server configuration to several other domains — among them isu-wf.de, versus-wf.de, ostfalia.net and two more.
isu-wf.com has at least partial mail server overlap with other domains such as kigo-lkbs.de, martin-chemnitz-bs.de, st-michaelis-bs.de and two more.
This set of mail servers commonly appears together with the mail servers mx3.sonia.de.
mx1.sonia.de directs to 141.41.1.237 and mx2.sonia.de directs to 141.41.1.238; each host name points to exactly one IP number.