o-calc.com - robtex.com
o-calc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.254.0.77🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK | ||||||
| PTR | sh-77.1blu.de | ||||||
| NS | ns01.1blu.de ⭐ | ||||||
| A | 87.238.195.66🇩🇪 EVANZOAS87.238.192.0/21 DE-EVANZO-MK | ||||||
| NS | ns02.1blu.de | ||||||
| A | 178.254.5.130🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK | ||||||
| MX | mail.o-calc.com ⭐ | ||||||
| A | 178.254.4.101🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK | ||||||
| PTR | ms-10.1blu.de | ||||||
| TXT | v=spf1 mx include:_spf.1blu.de -all | ||||||
| SOA | ns01.1blu.dehostmaster@1blu.de 2025-01-07 #3 | ||||||
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=1778596006 | ||||||
Subdomains
mail.o-calc.com |
Same first word
o-calc.com |
Similar names
DNS History
9 records (4 active, 5 former)
●NSns01.1blu.de2026-03-27 → 2026-05-12 · 3 obs
● 2026-03-27 19:56:42
● 2026-05-12 14:35:52
●NSns02.1blu.de2026-03-27 → 2026-05-12 · 3 obs
● 2026-03-27 19:56:42
● 2026-05-12 14:35:52
○NSns1.methfessel-computers.de2015-07-14 → 2017-01-25 · 4 obs
● 2017-01-25 23:09:52
○ 2026-03-27 19:56:42
○ 2026-05-12 14:35:52
○NSns2.methfessel-computers.de2015-07-14 → 2017-01-25 · 4 obs
● 2017-01-25 23:09:52
○ 2026-03-27 19:56:42
○ 2026-05-12 14:35:52
○NSns3.methfessel-computers.de2015-07-14 → 2017-01-25 · 4 obs
● 2017-01-25 23:09:52
○ 2026-03-27 19:56:42
○ 2026-05-12 14:35:52
●MXmail.o-calc.com2026-03-27 → 2026-05-12 · 3 obs
● 2026-03-27 19:56:42
● 2026-05-12 14:35:52
○MXmail1.methfessel-computers.de2015-07-14 → 2017-01-25 · 4 obs
● 2017-01-25 23:09:52
○ 2026-03-27 19:56:42
○ 2026-05-12 14:35:52
●A178.254.0.772026-03-27 → 2026-05-12 · 3 obs
● 2026-03-27 19:56:42
● 2026-05-12 14:35:52
○A217.19.187.512015-07-14 → 2017-01-25 · 4 obs
● 2017-01-25 23:09:52
○ 2026-03-27 19:56:42
○ 2026-05-12 14:35:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| o-calc.com | ns01.1blu.de, ns02.1blu.de | - |
✅ Authoritative Response
Server:178.254.5.130
NS records: ns01.1blu.de, ns02.1blu.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for o-calc.com (unsigned zone)
⏱️ Timing
Total: 1134ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.254.0.77 |
| NS | 2 | ns02.1blu.de, ns01.1blu.de |
| MX | 1 | mail.o-calc.com (pri: 10) |
| TXT | 1 | v=spf1 mx include:_spf.1blu.de -all |
| SOA | 1 | ns01.1blu.de hostmaster.1blu.de |
Analysis
Hierarchy
The parent of mail.o-calc.com is o-calc.com.
IP Addresses
o-calc.com points to a single IP address: 178.254.0.77.
Other host names such as aktuar-hamburg.de, 3r3.de, herrmann.uno, ostsee-ferienhaus-kellenhusen.de and fehmarn-marketing.de share IPs with o-calc.com.
Name Servers
Two name servers ns01.1blu.de and ns02.1blu.de handle the delegation for o-calc.com.
o-calc.com shares the same name server setup as other domains, for example funkwelle.org, tenschert.com, reutron.de, lonzig.de and bennitalent.com.
Host names with one IP number:
ns01.1blu.de points to 87.238.195.66; ns02.1blu.de points to 178.254.5.130.
Mail Servers
The mail.o-calc.com mail server handles o-calc.com.
mail.o-calc.com points to a single IP number: 178.254.4.101.