ohcourse.com - robtex.com
ohcourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 82.223.212.243🇪🇸 IONOS-AS82.223.0.0/16 arsys.es | ||||||
| PTR | llxm527.servidoresdns.net | ||||||
| NS | dns3.hispaworksgroup.com ⭐ | ||||||
| A | 82.223.170.73🇪🇸 IONOS-AS82.223.0.0/16 arsys.es | ||||||
| PTR | dns3.hispaworksgroup.com | ||||||
| NS | dns4.hispaworksgroup.com | ||||||
| A | 82.223.171.73🇪🇸 IONOS-AS82.223.0.0/16 arsys.es | ||||||
| PTR | dns4.hispaworksgroup.com | ||||||
| MX | mx.serviciodecorreo.es ⭐ | ||||||
| A | 82.223.190.100🇪🇸 IONOS-AS82.223.0.0/16 arsys.es | ||||||
| PTR | mx.serviciodecorreo.es | ||||||
| TXT | v=spf1 include:_spf.serviciodecorreo.es ~all | ||||||
| SOA | dns3.hispaworksgroup.comhostmaster@hispaworksgroup.com 2019-04-10 #25 | ||||||
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=1776975951 | ||||||
Same first word
ohcourse.com |
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns3.hispaworksgroup.com2026-03-17 → 2026-04-23 · 2 obs
● 2026-04-23 20:34:26
●NSdns4.hispaworksgroup.com2026-03-17 → 2026-04-23 · 2 obs
● 2026-04-23 20:34:26
●MXmx.serviciodecorreo.es2026-03-17 → 2026-04-23 · 2 obs
● 2026-04-23 20:34:26
●A82.223.212.2432026-03-17 → 2026-04-23 · 2 obs
● 2026-04-23 20:34:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| ohcourse.com | dns3.hispaworksgroup.com, dns4.hispaworksgroup.com | 2 records |
✅ Authoritative Response
Server:82.223.170.73
NS records: dns3.hispaworksgroup.com, dns4.hispaworksgroup.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ohcourse.com (unsigned zone)
⏱️ Timing
Total: 408ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.223.212.243 |
| NS | 2 | dns3.hispaworksgroup.com, dns4.hispaworksgroup.com |
| MX | 1 | mx.serviciodecorreo.es (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.serviciodecorreo.es |
| SOA | 1 | dns3.hispaworksgroup.com hostmaster.hisp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns3.hispaworksgroup.com, dns4.hispaworksgroup.com)
Analysis
IP Addresses
ohcourse.com resolves to one IP number: 82.223.212.243.
Other host names, for instance clinicadentalcentre.com, promonauinmobiliaria.es, gestorcultural.org, rimevi.es and gestinmosoft.com share IP numbers with ohcourse.com.
Name Servers
ohcourse.com's delegation uses two name servers: dns3.hispaworksgroup.com and dns4.hispaworksgroup.com.
ohcourse.com uses the same name server setup as other domains, such as palomarabogados.com, ticketoh.com, gironella.biz, cinesaplay.es and nukkias.com.
Host names with a single IP address: dns3.hispaworksgroup.com points to 82.223.170.73; dns4.hispaworksgroup.com points to 82.223.171.73.
Mail Servers
A single mail server handles ohcourse.com, mx.serviciodecorreo.es.
ohcourse.com shares the same mail server setup as other domains, for instance acusticar.com, asccirugiaveterinaria.com, remolqueshf.com, castillodearteaga.com and expodisplayservice.net.
Host name mx.serviciodecorreo.es resolves to a single IP: 82.223.190.100.