coursemason.com - robtex.com
coursemason.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=1771291435 | ||||||
DNS History
11 records (10 active, 1 former)
●NSns23.domaincontrol.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●NSns24.domaincontrol.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●MXalt1.aspmx.l.google.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●MXalt2.aspmx.l.google.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●MXaspmx.l.google.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●MXaspmx2.googlemail.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●MXaspmx3.googlemail.com2015-08-22 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●A15.197.142.1732026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
○A184.168.221.192015-08-22 → 2017-03-26 · 3 obs
● 2017-03-26 23:43:58
○ 2026-02-26 13:19:44
●A3.33.152.1472026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
●A52.162.107.402026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 13:19:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| coursemason.com | ns23.domaincontrol.com, ns24.domaincontrol.com | 4 records |
✅ Authoritative Response
Server: 173.201.69.12
NS records: ns23.domaincontrol.com, ns24.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coursemason.com (unsigned zone)
⏱️ Timing
Total: 321ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 15.197.142.173, 3.33.152.147... |
| NS | 2 | ns23.domaincontrol.com, ns24.domaincontrol.com |
| MX | 5 | alt1.aspmx.l.google.com (pri: 20), alt2.aspmx.l.google.com (pri: 30)... |
| TXT | 1 | google-site-verification=pNeB0gWExRvgs0I |
| SOA | 1 | ns23.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns23.domaincontrol.com, ns23.domaincontrol.com, ns24.domaincontrol.com...)
AI analysis
coursemason.com points to three IP numbers: 3.33.152.147, 15.197.142.173 and 52.162.107.40.
Other host names including pervpleasures.com, scelicpa.com, campolab.com, albertallenback.com and keithward.net share IP numbers with coursemason.com.
coursemason.com's delegation uses two name servers, ns23.domaincontrol.com and ns24.domaincontrol.com.
coursemason.com shares the same name server setup as other domains, for example elaracing.com, oracletaxforms.com, ebnds.ca, brianastlefineart.com and webspareparts.eu.
Host names with two IPs:
ns23.domaincontrol.com points to: 2603:5:2151::c and 97.74.101.12
ns24.domaincontrol.com points to: 2603:5:2251::c and 173.201.69.12
coursemason.com is handled by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
The mail servers for coursemason.com are shared with other domains, for instance ns500671.ns500754.ns500754.ns500671.ns500754.ns500671.ns500705.ns500705.ns500688.ns500678.ns500291.ns500291.ns500291.ns500131.lustychickser.com, ns500754.ns500742.ns500754.ns500742.ns500754.ns500688.ns500705.ns500649.ns500649.ns500649.ns500666.tenderladiesbz.com, mangovoice.com, traititrail.com and kvag.net.
these mail servers are commonly used with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Hostnames with two IPs:
aspmx2.googlemail.com points to: 2607:f8b0:4003:c30::1b and 74.125.27.27.
aspmx3.googlemail.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.27.
aspmx.l.google.com points to: 2607:f8b0:4004:c19::1b and 172.253.62.27.
alt1.aspmx.l.google.com points to: 2607:f8b0:4003:c30::1b and 74.125.27.26.
alt2.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1a and 192.178.209.26.
Hostnames pointing to 2607:f8b0:4003:c30::1b: aspmx2.googlemail.com and alt1.aspmx.l.google.com.
Hostnames pointing to 2607:f8b0:4001:c70::1a: aspmx3.googlemail.com and alt2.aspmx.l.google.com.