webcourses.gr - dns.ninja
webcourses.gr
gr
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | grdns.ics.forth.gr ⭐ | ||||||
| NS | estia.ics.forth.gr | ||||||
| NS | gr-a.ics.forth.gr | ||||||
| NS | gr-at.ics.forth.gr | ||||||
| NS | gr-d.ics.forth.gr | ||||||
| NS | gr-m.ics.forth.gr | ||||||
| SOA | grdns.ics.forth.grhmaster-info@ics.forth.gr serial=2607301291 | ||||||
Subdomains
mail.webcourses.gr |
Same first word
webcourses.tv |
webcourses.net |
webcourses.de |
webcourses.ca |
webcourses.us |
webcourses.nz |
webcourses.com |
webcourses.gr |
webcourses.ie |
Similar names
coursesweb.net |
websources.ru |
websources.net |
coursesweb.com |
coursewebs.com |
sourcesweb.com |
sourcewebs.com |
websources.com |
DNS History
6 records (6 active, 0 former)
●NShelium.ns.hetzner.de2026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
●NShydrogen.ns.hetzner.com2026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
●NSoxygen.ns.hetzner.com2026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
●MXmail.webcourses.gr2026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
●A2a01:4f8:1c1b:69fc::12026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
●A46.224.62.2312026-06-12 → 2026-07-30 · 2 obs
● 2026-07-30 14:50:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| gr | gr-m.ics.forth.gr, estia.ics.forth.gr, gr-at.ics.forth.gr, grdns.ics.forth.gr... | - |
| webcourses.gr | hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com | - |
✅ Authoritative Response
Server:88.198.229.192
NS records: hydrogen.ns.hetzner.com, helium.ns.hetzner.de, oxygen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for webcourses.gr (unsigned zone)
⏱️ Timing
Total: 1017ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.224.62.231 |
| AAAA | 1 | 2a01:4f8:1c1b:69fc::1 |
| NS | 3 | hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com... |
| MX | 1 | mail.webcourses.gr (pri: 5) |
| TXT | 2 | v=spf1 a mx a:webcourses.gr ip4:46.224.6, google-site-verification=RHn4WbV3Kc3brK3 |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
Hierarchy
webcourses.gr serves as the parent of mail.webcourses.gr.
IP Addresses
webcourses.gr directs to two IP numbers, 46.224.62.231 and 2a01:4f8:1c1b:69fc::1
There are other host names — mail.webcourses.gr among them — that share IP numbers with webcourses.gr.
Name Servers
DNS for webcourses.gr is handled by three authoritative name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
webcourses.gr has at least partial name server overlap with other domains, such as scherpf.eu, safe-web.org, devmonks.de and two others.
These name servers are routinely co-deployed with the name servers ns1.first-ns.de, robotns2.second-ns.de, ns.second-ns.com and two others.
Three hostnames — hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de — each have two IP addresses: hydrogen.ns.hetzner.com has 213.133.100.98 and 2a01:4f8:0:1::add:1098, oxygen.ns.hetzner.com has 88.198.229.192 and 2a01:4f8:0:1::add:2992, and helium.ns.hetzner.de has 193.47.99.5 and 2001:67c:192c::add:5.
Mail Servers
webcourses.gr routes its mail through a single mail server, mail.webcourses.gr.
mail.webcourses.gr has two IP addresses: 46.224.62.231 and 2a01:4f8:1c1b:69fc::1.