mathstacktutor.com - dns.ninja
mathstacktutor.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=1792238464 | ||||||
Same first word
mathstacktutor.com |
Previous names
Next names
DNS History
9 records (9 active, 0 former)
●NSns-cloud-c1.googledomains.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●NSns-cloud-c2.googledomains.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●NSns-cloud-c3.googledomains.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●NSns-cloud-c4.googledomains.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●MXalt1.aspmx.l.google.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●MXalt2.aspmx.l.google.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●MXaspmx.l.google.com2026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●A31.43.160.62026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
●A31.43.161.62026-09-16 → 2026-10-17 · 2 obs
● 2026-10-17 12:28:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net... | - |
| mathstacktutor.com | ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com | 8 records |
✅ Authoritative Response
Server:216.239.32.108
NS records: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathstacktutor.com (unsigned zone)
⏱️ Timing
Total: 422ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 31.43.160.6, 31.43.161.6 |
| NS | 4 | ns-cloud-c3.googledomains.com, ns-cloud-c2.googledomains.com... |
| MX | 3 | alt1.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)... |
| TXT | 1 | google-site-verification=Qg4PUl8pkNzOuH2 |
| SOA | 1 | ns-cloud-c1.googledomains.com cloud-dns- |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns-cloud-c1.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com...)
Analysis
IP Addresses
mathstacktutor.com resolves to the IP addresses 31.43.160.6 and 31.43.161.6
idruide.pro, milamettoadvocacia.com.br, personalbrandpursuit.com plus two other host names have IP numbers in common with mathstacktutor.com.
Name Servers
Four name servers handle the delegation for mathstacktutor.com: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.
mathstacktutor.com partially shares its NS delegation with several other domains, including alencian.co, nhrewild.com, buysutra.in and two others.
ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com each carry two IP addresses. ns-cloud-c1.googledomains.com has 216.239.32.108 and 2001:4860:4802:32::6c; ns-cloud-c2.googledomains.com has 216.239.34.108 and 2001:4860:4802:34::6c; ns-cloud-c3.googledomains.com has 216.239.36.108 and 2001:4860:4802:36::6c; ns-cloud-c4.googledomains.com has 216.239.38.108 and 2001:4860:4802:38::6c.
Mail Servers
mathstacktutor.com uses three mail servers — aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
At least some of the mail servers used by mathstacktutor.com are shared with other domains: ceoshan.com, resortmunicipalitypei.com, tamas.pro and two others among them.
These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.
aspmx.l.google.com resolves to 142.251.16.26 and 2607:f8b0:4004:c09::1b. alt1.aspmx.l.google.com resolves to 192.178.234.26 and 2800:3f0:4003:c14::1b. alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b. All three hostnames point to two IP numbers each.