learncolorado.com - robtex.com
learncolorado.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=1776170702 | ||||||
DNS History
10 records (0 active, 10 former)
○NSns-us.1and1-dns.com2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○NSns-us.1and1-dns.de2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○NSns-us.1and1-dns.org2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○NSns-us.1and1-dns.us2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○MXmx00.1and1.com2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○MXmx01.1and1.com2015-12-22 → 2016-07-19 · 4 obs
● 2015-12-22 20:08:44
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○A2607:f1c0:1000:90ac:20:76dc:bf94:38002016-07-19 → 2016-07-19 · 4 obs
○ 2016-03-23 05:13:08
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
○A2607:f1c0:1000:90ac:8a40:524:6227:58012015-12-22 → 2016-03-23 · 4 obs
● 2015-12-22 20:08:44
● 2016-03-23 05:13:08
○ 2016-07-19 12:40:58
○ 2026-04-14 13:07:50
● 2016-03-23 05:13:08
○ 2016-07-19 12:40:58
○ 2026-04-14 13:07:50
○A66.175.237.802015-12-22 → 2016-03-23 · 4 obs
● 2015-12-22 20:08:44
● 2016-03-23 05:13:08
○ 2016-07-19 12:40:58
○ 2026-04-14 13:07:50
● 2016-03-23 05:13:08
○ 2016-07-19 12:40:58
○ 2026-04-14 13:07:50
○A74.208.215.652016-07-19 → 2016-07-19 · 4 obs
○ 2016-03-23 05:13:08
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
● 2016-07-19 12:40:58
○ 2017-03-28 13:24:48
○ 2026-04-14 13:07:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net... | - |
✅ Authoritative Response
Server:192.48.79.30
NS records: h.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, e.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: 80ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|