tu521.com - robtex.com
tu521.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=1774454997 | ||||||
Same first word
tu521.com |
DNS History
11 records (0 active, 11 former)
○NSa.share-dns.com2026-03-25 → 2026-03-25 · 1 obs
○ 2026-03-25 16:17:18
○NSa7.share-dns.com2026-03-25 → 2026-03-25 · 1 obs
○ 2026-03-25 16:17:18
○NSb.share-dns.net2026-03-25 → 2026-03-25 · 1 obs
○ 2026-03-25 16:17:18
○NSb7.share-dns.net2026-03-25 → 2026-03-25 · 1 obs
○ 2026-03-25 16:17:18
○NSdns10.hichina.com2016-01-24 → 2016-04-12 · 4 obs
● 2016-01-24 14:13:38
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
○NSdns9.hichina.com2016-01-24 → 2016-04-12 · 4 obs
● 2016-01-24 14:13:38
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
○NSjuming.dnsdun.com2018-05-25 → 2018-05-25 · 3 obs
○ 2017-01-22 17:46:22
● 2018-05-25 14:42:14
○ 2026-03-25 16:17:18
● 2018-05-25 14:42:14
○ 2026-03-25 16:17:18
○NSjuming.dnsdun.net2018-05-25 → 2018-05-25 · 3 obs
○ 2017-01-22 17:46:22
● 2018-05-25 14:42:14
○ 2026-03-25 16:17:18
● 2018-05-25 14:42:14
○ 2026-03-25 16:17:18
○A38.6.232.1492026-03-25 → 2026-03-25 · 1 obs
○ 2026-03-25 16:17:18
○A47.75.135.1472018-05-25 → 2018-05-25 · 2 obs
● 2018-05-25 14:42:14
○ 2026-03-25 16:17:18
○ 2026-03-25 16:17:18
○CNAMEwww.server-hz2.kalegou.com2016-01-24 → 2016-04-12 · 4 obs
● 2016-01-24 14:13:38
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
● 2016-04-12 00:47:46
○ 2017-01-22 17:46:22
○ 2026-03-25 16:17:18
🔍 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:192.52.178.30
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: 206ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|