leantheory.com - robtex.com
leantheory.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=1775011707 | ||||||
Same first word
leantheory.com |
Similar names
DNS History
7 records (6 active, 1 former)
●NSns37.domaincontrol.com2015-05-09 → 2026-04-01 · 2 obs
● 2026-04-01 02:54:38
●NSns38.domaincontrol.com2015-05-09 → 2026-04-01 · 2 obs
● 2026-04-01 02:54:38
●MXmailstore1.secureserver.net2015-05-09 → 2026-04-01 · 2 obs
● 2026-04-01 02:54:38
●MXsmtp.secureserver.net2015-05-09 → 2026-04-01 · 2 obs
● 2026-04-01 02:54:38
●A15.197.148.332026-03-19 → 2026-04-01 · 3 obs
● 2026-03-19 16:44:08
● 2026-04-01 02:54:38
●A3.33.130.1902026-03-19 → 2026-04-01 · 3 obs
● 2026-03-19 16:44:08
● 2026-04-01 02:54:38
○A50.63.202.432015-05-09 → 2017-12-30 · 4 obs
● 2017-12-30 08:52:18
○ 2026-03-19 16:44:08
○ 2026-04-01 02:54:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| leantheory.com | ns37.domaincontrol.com, ns38.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.108.19
NS records: ns37.domaincontrol.com, ns38.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for leantheory.com (unsigned zone)
⏱️ Timing
Total: 91ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.33.130.190, 15.197.148.33 |
| NS | 2 | ns37.domaincontrol.com, ns38.domaincontrol.com |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | ns37.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns37.domaincontrol.com, ns37.domaincontrol.com, ns38.domaincontrol.com...)
Analysis
IP Addresses
leantheory.com has two IP numbers: 3.33.130.190 and 15.197.148.33.
Other host names, for instance roofmaths.com, outerbanksservices.com, palmettocrescent.com, tabuchielectric.com and arcticacservices.com share IP numbers with leantheory.com.
Name Servers
leantheory.com's delegation uses two name servers: ns37.domaincontrol.com and ns38.domaincontrol.com.
leantheory.com uses the same name server setup as other domains, such as championwindowphiladelphia.com, noiseandvibrationsolutions.com, hardeepchana.com, allthingsparty.us and fpgpensions.com.
leantheory.com at least partially shares name servers with other domains, for example galacto.com.
Host names with two IPs:
ns37.domaincontrol.com points to 2603:5:21c1::13 and 97.74.108.19
ns38.domaincontrol.com points to 2603:5:22c1::13 and 173.201.76.19
Mail Servers
leantheory.com is served by two mail servers mailstore1.secureserver.net and smtp.secureserver.net.
leantheory.com shares the same mail server setup as other domains, for instance blackdiamondmenu.com, rigged-up.net, leiff.info, jelena-djurisic.com and cargogods.com.
leantheory.com shares some mail servers with other domains, at least in part; for example arijem.net and mccanndogs.com.
Host names with three IP numbers:
The host name mailstore1.secureserver.net resolves to 216.69.141.78, 216.69.141.114 and 216.69.141.162.
The host name smtp.secureserver.net resolves to 216.69.141.71, 216.69.141.84 and 216.69.141.113.