itprogrammingcourses.com - robtex.com
itprogrammingcourses.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=1789895654 | ||||||
DNS History
11 records (0 active, 11 former)
○NSns1.linode.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○NSns2.linode.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○NSns3.linode.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○NSns4.linode.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○NSns5.linode.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○MXalt1.aspmx.l.google.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○MXalt2.aspmx.l.google.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○MXaspmx.l.google.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○MXaspmx2.googlemail.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○MXaspmx3.googlemail.com2015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
○A92.51.242.532015-05-25 → 2017-05-22 · 4 obs
● 2015-05-25 16:56:06
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
● 2017-05-22 08:11:42
○ 2026-09-06 03:19:12
○ 2026-09-20 09:20:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.5.6.30
NS records: m.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 479ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|