open-number.com - robtex.com
open-number.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 85.88.9.181🇩🇪 SURFPLANET-AS85.88.0.0/19 Surfplanet GmbH PA-Block | ||||||
| NS | ns1.namesecure.de ⭐ | ||||||
| A | 2a04:2b00:14cc::225🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48 | ||||||
| PTR | ns1.dnsres.net | ||||||
| A | 193.227.117.225🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24 | ||||||
| PTR | ns1.dnsres.net | ||||||
| PTR | ns3.registrant-verification.ispapi.net | ||||||
| NS | ns2.namesecure.de | ||||||
| A | 2a04:2b00:14dd::225🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48 | ||||||
| PTR | ns2.dnsres.net | ||||||
| A | 194.50.187.225🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24 | ||||||
| PTR | ns2.dnsres.net | ||||||
| PTR | ns1.registrant-verification.ispapi.net | ||||||
| MX | mail.open-number.com ⭐ | ||||||
| A | 85.88.3.238🇩🇪 SURFPLANET-AS85.88.0.0/19 Surfplanet GmbH PA-Block | ||||||
| PTR | mail.infininet.de | ||||||
| SOA | ns1.namesecure.dehostmaster@namesecure.de 2019-06-07 #16 | ||||||
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=1774711657 | ||||||
Subdomains
mail.open-number.com |
Same first word
open-number.com |
DNS History
4 records (4 active, 0 former)
●NSns1.namesecure.de2015-06-23 → 2026-03-28 · 2 obs
● 2026-03-28 15:32:14
●NSns2.namesecure.de2015-06-23 → 2026-03-28 · 2 obs
● 2026-03-28 15:32:14
●MXmail.open-number.com2015-06-23 → 2026-03-28 · 2 obs
● 2026-03-28 15:32:14
●A85.88.9.1812015-06-23 → 2026-03-28 · 2 obs
● 2026-03-28 15:32:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net... | - |
| open-number.com | ns1.namesecure.de, ns2.namesecure.de | - |
✅ Authoritative Response
Server:194.50.187.225
NS records: ns1.namesecure.de, ns2.namesecure.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for open-number.com (unsigned zone)
⏱️ Timing
Total: 517ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.88.9.181 |
| NS | 2 | ns2.namesecure.de, ns1.namesecure.de |
| MX | 1 | mail.open-number.com (pri: 10) |
| SOA | 1 | ns1.namesecure.de hostmaster.namesecure. |
Analysis
Hierarchy
open-number.com is a parent of mail.open-number.com.
IP Addresses
open-number.com points to a single IP number: 85.88.9.181.
Other host names, for instance oneframe.de, bettkampf.com, youreg.de, 1frame.de and spamcan.de share IP numbers with open-number.com.
Name Servers
Delegation for open-number.com rests with two name servers, ns1.namesecure.de and ns2.namesecure.de.
open-number.com shares the same name server setup as other domains, including bfc-eckermeier.de, top-speedy.at, postfach.it, amc-finanzmarkt.de and heilpraktiker-bad-breisig.com.
open-number.com at least partially shares name servers with other domains, for instance moderatoren-service.de, timewarp.eu, yoga-reise.eu, weldotherm.pl and heinrichgoertz.de.
These name servers are commonly used with the name servers ns3.namesecure.de.
Host names with two IP numbers: ns1.namesecure.de points to 2a04:2b00:14cc::225 and 193.227.117.225; ns2.namesecure.de points to 2a04:2b00:14dd::225 and 194.50.187.225.
Mail Servers
open-number.com is handled by a single mail server, mail.open-number.com.
mail.open-number.com points to a single IP: 85.88.3.238.