columbine-instructor-guide.com - robtex.com
columbine-instructor-guide.com
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=1776168862 | ||||||
Same first word
columbine-instructor-guide.com |
DNS History
8 records (7 active, 1 former)
●NSns31.domaincontrol.com2015-08-04 → 2026-04-14 · 4 obs
○ 2015-11-29 23:55:42
● 2020-03-01 00:48:26
● 2026-04-14 12:44:24
●NSns32.domaincontrol.com2015-08-04 → 2026-04-14 · 2 obs
● 2026-04-14 12:44:24
●NSns41.domaincontrol.com2015-11-29 → 2026-04-14 · 3 obs
● 2015-11-29 23:55:42
● 2026-04-14 12:44:24
●NSns42.domaincontrol.com2015-11-29 → 2026-04-14 · 3 obs
● 2015-11-29 23:55:42
● 2026-04-14 12:44:24
●MXmailstore1.secureserver.net2015-08-04 → 2026-04-14 · 2 obs
● 2026-04-14 12:44:24
●MXsmtp.secureserver.net2015-08-04 → 2026-04-14 · 2 obs
● 2026-04-14 12:44:24
●A107.180.46.1462026-04-11 → 2026-04-14 · 3 obs
● 2026-04-11 23:21:00
● 2026-04-14 12:44:24
○A72.167.1.1282015-08-04 → 2020-03-01 · 4 obs
● 2020-03-01 00:48:26
○ 2026-04-11 23:21:00
○ 2026-04-14 12:44:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net... | - |
| columbine-instructor-guide.com | ns41.domaincontrol.com, ns42.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.68.21
NS records: ns41.domaincontrol.com, ns42.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for columbine-instructor-guide.com (unsigned zone)
⏱️ Timing
Total: 216ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 107.180.46.146 |
| NS | 4 | ns31.domaincontrol.com, ns32.domaincontrol.com... |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | ns41.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns41.domaincontrol.com, ns41.domaincontrol.com, ns42.domaincontrol.com...)
Analysis
IP Addresses
columbine-instructor-guide.com points to IP number: 107.180.46.146.
Other host names such as mail.kolut.com, mail.adamrankin.com, mail.mycbbook.com, chinesejournal.com and vreg.com share IPs with columbine-instructor-guide.com.
Name Servers
columbine-instructor-guide.com is delegated to four name servers: ns31.domaincontrol.com, ns32.domaincontrol.com, ns41.domaincontrol.com and ns42.domaincontrol.com.
columbine-instructor-guide.com at least partially shares name servers with other domains, for instance justcarcare.co.uk, ibtesama.com, stjwschool.org, r-lp.com and goulden.com.
Host names with two IP numbers: ns31.domaincontrol.com points to 2603:5:2191::10 and 97.74.105.16; ns32.domaincontrol.com points to 2603:5:2291::10 and 173.201.73.16; ns41.domaincontrol.com points to 2603:5:2142::15 and 97.74.100.21; ns42.domaincontrol.com points to 2603:5:2242::15 and 173.201.68.21.
Mail Servers
columbine-instructor-guide.com is handled by two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.
The mail server setup for columbine-instructor-guide.com matches that of other domains, for instance promlabs.co.uk, marvia.net, repd.net, lolspec.com and waterwaysmarina.org.
Host names with three IP numbers: mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162; smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113.