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cuobook.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
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=1771291435 | ||||||
Up
mail.cuobook.com |
Same first word
cuobook.com |
DNS History
10 records (0 active, 10 former)
○NSf1g1ns1.dnspod.net2018-12-31 → 2018-12-31 · 2 obs
● 2018-12-31 08:51:52
○ 2026-02-17 14:30:36
○ 2026-02-17 14:30:36
○NSf1g1ns2.dnspod.net2018-12-31 → 2018-12-31 · 2 obs
● 2018-12-31 08:51:52
○ 2026-02-17 14:30:36
○ 2026-02-17 14:30:36
○MXmail.pickelhost.com2026-02-17 → 2026-02-17 · 1 obs
○ 2026-02-17 14:30:36
○A107.148.217.1462018-12-31 → 2018-12-31 · 2 obs
● 2018-12-31 08:51:52
○ 2026-02-17 14:30:36
○ 2026-02-17 14:30:36
○A91.195.240.942026-02-17 → 2026-02-17 · 1 obs
○ 2026-02-17 14:30:36
🔍 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: 192.35.51.30
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: 261ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|