mathstacktutor.com - robtex.com
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=1794014106 | ||||||
Same first word
mathstacktutor.com |
Previous names
Next names
DNS History
9 records (9 active, 0 former)
●NSns-cloud-c1.googledomains.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●NSns-cloud-c2.googledomains.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●NSns-cloud-c3.googledomains.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●NSns-cloud-c4.googledomains.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●MXalt1.aspmx.l.google.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●MXalt2.aspmx.l.google.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●MXaspmx.l.google.com2026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●A31.43.160.62026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
●A31.43.161.62026-09-16 → 2026-11-07 · 2 obs
● 2026-11-07 01:25:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, m.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:216.239.34.108
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: 910ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 31.43.160.6, 31.43.161.6 |
| NS | 4 | ns-cloud-c4.googledomains.com, ns-cloud-c1.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 points to the IP addresses 31.43.160.6 and 31.43.161.6
Among the host names that share IP numbers with mathstacktutor.com are idruide.pro, milamettoadvocacia.com.br, personalbrandpursuit.com and two others.
Name Servers
The domain mathstacktutor.com is delegated to these four name servers: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.
The name servers of mathstacktutor.com overlap at least partially with those of other domains — among them alencian.co, nhrewild.com, buysutra.in and two more.
Each of the four hosts ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com has two IP addresses. ns-cloud-c1.googledomains.com points to 216.239.32.108 and 2001:4860:4802:32::6c. ns-cloud-c2.googledomains.com points to 216.239.34.108 and 2001:4860:4802:34::6c. ns-cloud-c3.googledomains.com points to 216.239.36.108 and 2001:4860:4802:36::6c. ns-cloud-c4.googledomains.com points to 216.239.38.108 and 2001:4860:4802:38::6c.
Mail Servers
Mail for mathstacktutor.com is routed through three mail servers — aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
mathstacktutor.com shares at least some of its mail servers with other domains — for example ceoshan.com, resortmunicipalitypei.com, tamas.pro and two more.
It is common to find these mail servers paired with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 more.
Each of aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com points to two IP numbers. aspmx.l.google.com points to 172.217.75.27 and 2607:f8b0:4023:2009::1a. alt1.aspmx.l.google.com points to 172.253.145.26 and 2607:f8b0:4023:3003::1b. alt2.aspmx.l.google.com points to 172.253.135.27 and 2607:f8b0:4023:1015::1b.