crt-u.com - robtex.com
crt-u.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=1785431592 | ||||||
MX for
crt-u.com |
Subdomains
www.crt-u.com |
Same first word
crt-u.com |
Similar names
DNS History
4 records (0 active, 4 former)
○NSns1.supermag-3.com2026-05-20 → 2026-05-20 · 2 obs
● 2026-05-20 03:49:40
○ 2026-07-30 17:31:54
○ 2026-07-30 17:31:54
○NSns2.supermag-3.com2026-05-20 → 2026-05-20 · 2 obs
● 2026-05-20 03:49:40
○ 2026-07-30 17:31:54
○ 2026-07-30 17:31:54
○MXcrt-u.com2026-05-20 → 2026-05-20 · 2 obs
● 2026-05-20 03:49:40
○ 2026-07-30 17:31:54
○ 2026-07-30 17:31:54
○A69.6.243.2452026-05-20 → 2026-05-20 · 2 obs
● 2026-05-20 03:49:40
○ 2026-07-30 17:31:54
○ 2026-07-30 17:31:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.48.79.30
NS records: l.gtld-servers.net, m.gtld-servers.net, 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
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 101ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|