opus.radio - robtex.com
opus.radio
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.92.227.50🇱🇺 BCELU81.92.227.0/24 LU-BCE-AS | ||||||
| PTR | dummy.tsl.lu | ||||||
| NS | us19-east.irondns.net ⭐ | ||||||
| A | 2a01:5b0:22::4🇩🇪 KNIPPWORLDWIDE2a01:5b0:22::/48 KNIPP worldwide | ||||||
| PTR | us19-east.irondns.net | ||||||
| A | 195.253.98.4🇩🇪 KNIPPWORLDWIDE195.253.98.0/24 KNIPP worldwide | ||||||
| PTR | us19-east.irondns.net | ||||||
| NS | us20-west.irondns.net | ||||||
| A | 2a01:5b0:23::2🇩🇪 KNIPPWORLDWIDE2a01:5b0:23::/48 KNIPP worldwide | ||||||
| PTR | us20-west.irondns.net | ||||||
| A | 195.253.99.2🇩🇪 KNIPPWORLDWIDE195.253.99.0/24 KNIPP worldwide | ||||||
| PTR | us20-west.irondns.net | ||||||
| MX | fm.nwe.de ⭐ | ||||||
| A | 213.206.175.23🇩🇪 PFALZKOM213.206.160.0/19 | ||||||
| PTR | fm.nwe.de | ||||||
| MX | mail.opus.radio(10) | ||||||
| A | 213.166.52.101🇱🇺 EPT-LU213.166.32.0/19 PT-LU | ||||||
| PTR | mail.100komma7.lu | ||||||
| SOA | us19-east.irondns.netsecretariat@corenic.org 2026-02-02 #0 | ||||||
radio
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | anycast9.irondns.net ⭐ | ||||||
| NS | a.nic.radio | ||||||
| NS | b.nic.radio | ||||||
| NS | c.nic.radio ⚠️ Not in parent delegation | ||||||
| NS | d.nic.radio ⚠️ Not in parent delegation | ||||||
| SOA | anycast9.irondns.netdnsmaster@corenic.org serial=2607241335 | ||||||
Subdomains
mail.opus.radio |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSus19-east.irondns.net2026-07-07 → 2026-07-24 · 2 obs
● 2026-07-24 13:54:44
●NSus20-west.irondns.net2026-07-07 → 2026-07-24 · 2 obs
● 2026-07-24 13:54:44
●MXmail.opus.radio2026-07-07 → 2026-07-24 · 2 obs
● 2026-07-24 13:54:44
●A81.92.227.502026-07-07 → 2026-07-24 · 2 obs
● 2026-07-24 13:54:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| radio | anycast10.irondns.net, anycast24.irondns.net, a.nic.radio, anycast9.irondns.net... | 12 records |
| opus.radio | us19-east.irondns.net, us20-west.irondns.net | - |
✅ Authoritative Response
Server:195.253.98.4
NS records: us19-east.irondns.net, us20-west.irondns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opus.radio (unsigned zone)
⏱️ Timing
Total: 881ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.92.227.50 |
| NS | 2 | us19-east.irondns.net, us20-west.irondns.net |
| MX | 2 | fm.nwe.de (pri: 5), mail.opus.radio (pri: 10) |
| SOA | 1 | us19-east.irondns.net secretariat.coreni |
📌 Glue Records Collected
Total: 12
In-bailiwick: 4 (a.nic.radio, a.nic.radio, b.nic.radio...)
Out-of-bailiwick: 8 (anycast10.irondns.net, anycast10.irondns.net, anycast24.irondns.net...)
Analysis
Hierarchy
opus.radio is the parent zone for mail.opus.radio.
IP Addresses
opus.radio has exactly one IP address — 81.92.227.50.
100komma7.lu, for instance, is one of the other host names sharing IP numbers with opus.radio.
Name Servers
opus.radio uses two name servers for its delegation: us19-east.irondns.net and us20-west.irondns.net.
The name server configuration of opus.radio is shared with other domains, for instance t-mobile-business.us, ukr.radio, sedus.us and two others.
opus.radio partially shares its NS delegation with several other domains, including virtus.sport, xn--zqw76c.com, t-mobile-team.us and two others.
These name servers are regularly seen alongside pns.dtag.de and hk21.irondns.net as name servers.
The two host names us19-east.irondns.net and us20-west.irondns.net each have a pair of IP addresses: us19-east.irondns.net has 195.253.98.4 and 2a01:5b0:22::4, and us20-west.irondns.net has 195.253.99.2 and 2a01:5b0:23::2.
Mail Servers
opus.radio uses two mail servers, fm.nwe.de and mail.opus.radio.
At least some of the mail servers used by opus.radio are shared with other domains: djhn.de, bbw-worms.drk.de, euro-bbw.drk.de and two others among them.
These mail servers tend to be used in conjunction with the mail servers mail4.100komma7.lu.
fm.nwe.de resolves to 213.206.175.23. mail.opus.radio resolves to 213.166.52.101. Both host names point to a single IP number.