cours-online.com - robtex.com
cours-online.com
| DNSSEC | ⚠️ Not signed | ||||||
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=1777305641 | ||||||
Same first word
Similar names
DNS History
6 records (0 active, 6 former)
○NSns1.eurodns.com2015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
○NSns2.eurodns.com2015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
○NSns3.eurodns.com2015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
○NSns4.eurodns.com2015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
○MXmail.cours-online.com2015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
○A5.135.11.2392015-06-07 → 2017-04-19 · 4 obs
● 2015-06-07 17:41:58
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
● 2017-04-19 19:49:44
○ 2026-03-27 16:03:52
○ 2026-04-27 16:22:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.54.112.30
NS records: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 154ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|