u-masts.com - robtex.com
u-masts.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | docks20.rzone.de ⚠️ Not in zone NS records | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:20🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks20.rzone.de | ||||||
| A | 217.160.80.147🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks20.rzone.de | ||||||
| NS | shades17.rzone.de ⚠️ Not in zone NS records | ||||||
| A | 2607:f1c0:fe:53:185:132:34:144🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades17.rzone.de | ||||||
| A | 185.132.34.144🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades17.rzone.de | ||||||
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=1785085967 | ||||||
Same first word
u-masts.com |
Similar names
DNS History
5 records (2 active, 3 former)
○MXsmtpin.rzone.de2019-12-14 → 2019-12-14 · 3 obs
○ 2026-05-25 22:17:00
○ 2026-07-26 17:30:08
○A2a01:238:20a:202:1078::2019-12-14 → 2019-12-14 · 3 obs
○ 2026-05-25 22:17:00
○ 2026-07-26 17:30:08
○A81.169.145.782019-12-14 → 2019-12-14 · 3 obs
○ 2026-05-25 22:17:00
○ 2026-07-26 17:30:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| u-masts.com | shades17.rzone.de, docks20.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.147
NS records: shades17.rzone.de, docks20.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for u-masts.com (unsigned zone)
⏱️ Timing
Total: 493ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
u-masts.com has two authoritative name servers — docks20.rzone.de and shades17.rzone.de.
The name server configuration of u-masts.com is shared with other domains, for instance openairamfernsehturm.de, cvkn.de, dm-law.de and two others.
There is at least partial name server overlap between u-masts.com and other domains — etnord.de, techage.de, tributetwentyseven.com and two more among them.
These name servers regularly appear alongside shades18.rzone.de, docks11.rzone.de, shades11.rzone.de and 7 other name servers in NS record sets.
Both docks20.rzone.de and shades17.rzone.de have two IP addresses each. docks20.rzone.de resolves to 217.160.80.147 and 2001:8d8:fe:53:5747:2a74:d:20; shades17.rzone.de resolves to 185.132.34.144 and 2607:f1c0:fe:53:185:132:34:144.