study199.com - robtex.com
study199.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=1794556026 | ||||||
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DNS History
21 records (0 active, 21 former)
○NSns01.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns02.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns03.domaincontrol.com2017-07-08 → 2017-07-08 · 4 obs
○ 2016-09-15 06:29:10
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
○NSns04.domaincontrol.com2017-07-08 → 2017-07-08 · 4 obs
○ 2016-09-15 06:29:10
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
○NSns13.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns15.domaincontrol.com2015-08-15 → 2016-03-13 · 5 obs
● 2015-08-15 09:38:56
○ 2015-12-12 11:08:32
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○ 2015-12-12 11:08:32
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns17.domaincontrol.com2015-08-15 → 2016-03-13 · 5 obs
● 2015-08-15 09:38:56
○ 2015-12-12 11:08:32
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○ 2015-12-12 11:08:32
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns18.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns25.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns27.domaincontrol.com2015-08-15 → 2015-12-12 · 4 obs
● 2015-08-15 09:38:56
● 2015-12-12 11:08:32
○ 2016-03-13 08:03:56
○ 2026-11-13 07:56:34
● 2015-12-12 11:08:32
○ 2016-03-13 08:03:56
○ 2026-11-13 07:56:34
○NSns28.domaincontrol.com2015-12-12 → 2015-12-12 · 4 obs
○ 2015-08-15 09:38:56
● 2015-12-12 11:08:32
○ 2016-03-13 08:03:56
○ 2026-11-13 07:56:34
● 2015-12-12 11:08:32
○ 2016-03-13 08:03:56
○ 2026-11-13 07:56:34
○NSns33.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns58.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns71.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSns72.domaincontrol.com2015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
○NSpdns07.domaincontrol.com2016-09-15 → 2016-09-15 · 4 obs
○ 2016-03-13 08:03:56
● 2016-09-15 06:29:10
○ 2017-07-08 11:53:52
○ 2026-11-13 07:56:34
● 2016-09-15 06:29:10
○ 2017-07-08 11:53:52
○ 2026-11-13 07:56:34
○NSpdns08.domaincontrol.com2016-09-15 → 2016-09-15 · 4 obs
○ 2016-03-13 08:03:56
● 2016-09-15 06:29:10
○ 2017-07-08 11:53:52
○ 2026-11-13 07:56:34
● 2016-09-15 06:29:10
○ 2017-07-08 11:53:52
○ 2026-11-13 07:56:34
○MXmailstore1.secureserver.net2015-08-15 → 2017-07-08 · 4 obs
● 2015-08-15 09:38:56
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
○MXsmtp.secureserver.net2015-08-15 → 2017-07-08 · 4 obs
● 2015-08-15 09:38:56
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
○A166.62.88.1792016-09-15 → 2017-07-08 · 5 obs
○ 2016-03-13 08:03:56
● 2016-09-15 06:29:10
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
● 2016-09-15 06:29:10
● 2017-07-08 11:53:52
○ 2026-10-19 07:01:46
○ 2026-11-13 07:56:34
○A172.246.148.532015-08-15 → 2016-03-13 · 4 obs
● 2015-08-15 09:38:56
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
● 2016-03-13 08:03:56
○ 2016-09-15 06:29:10
○ 2026-11-13 07:56:34
🔍 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:192.31.80.30
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: 186ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|