immowerker.com - robtex.com
immowerker.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.209.151.19🇩🇪 UUU-TELECOM-AS81.209.151.0/24 | ||||||
| NS | ns1.3u.net ⭐ | ||||||
| A | 2a05:8e40:0:2::3:42🇩🇪 UUU-TELECOM-AS2a05:8e40::/29 3U Telecom | ||||||
| A | 81.209.151.254🇩🇪 UUU-TELECOM-AS81.209.151.0/24 | ||||||
| NS | ns2.3u.net | ||||||
| A | 2a05:8e40:0:2::3:52🇩🇪 UUU-TELECOM-AS2a05:8e40::/29 3U Telecom | ||||||
| A | 83.125.107.34🇩🇪 UUU-TELECOM-AS83.125.106.0/23 3U | ||||||
| PTR | ns2.3u.net | ||||||
| MX | smtp.3u.net ⭐ | ||||||
| A | 81.209.151.4🇩🇪 UUU-TELECOM-AS81.209.151.0/24 | ||||||
| PTR | smtp.3u.net | ||||||
| SOA | ns1.3u.netops@3u.net 2016-06-08 #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=1778410131 | ||||||
Same first word
immowerker.com |
immowerker.de |
immowerker.net |
DNS History
5 records (4 active, 1 former)
●A81.209.151.192016-07-03 → 2026-05-10 · 3 obs
● 2016-07-03 16:57:16
● 2026-05-10 10:57:38
○A81.209.159.142015-08-03 → 2016-03-10 · 4 obs
● 2016-03-10 15:53:28
○ 2016-07-03 16:57:16
○ 2026-05-10 10:57:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| immowerker.com | ns1.3u.net, ns2.3u.net | - |
✅ Authoritative Response
Server:81.209.151.254
NS records: ns1.3u.net, ns2.3u.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for immowerker.com (unsigned zone)
⏱️ Timing
Total: 671ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.209.151.19 |
| NS | 2 | ns1.3u.net, ns2.3u.net |
| MX | 1 | smtp.3u.net (pri: 100) |
| SOA | 1 | ns1.3u.net ops.3u.net |
Analysis
IP Addresses
immowerker.com points to a single IP: 81.209.151.19.
Other host names, for instance immowerker.de, 01086.com, exacor.de, immowerker.net and acara-telecom.de share IP numbers with immowerker.com.
Name Servers
immowerker.com's delegation is to two name servers ns1.3u.net and ns2.3u.net.
immowerker.com shares the same name server configuration as other domains, such as 3u-energy.de, 218.239.80.in-addr.arpa, fussbodenheizung-online.de, exacor.de and 3usolarkraftwerk.de.
Host names with two IP numbers: ns1.3u.net points to 2a05:8e40:0:2::3:42 and 81.209.151.254; ns2.3u.net points to 2a05:8e40:0:2::3:52 and 83.125.107.34
Mail Servers
immowerker.com is served by a single mail server, smtp.3u.net.
immowerker.com uses the same mail server setup as other domains such as one-tel.de, pelia.net, 3u-energy-pe.de, 3uenergy.net and selfio-gmbh.de.
smtp.3u.net points to IP number 81.209.151.4.