a4math.com - robtex.com
a4math.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 64.29.17.1🇺🇸 Amazon64.29.17.0/24 EC2 Prefix | ||||||
| A | 216.198.79.65🇺🇸 Amazon216.198.79.0/24 EC2 Prefix | ||||||
| NS | ns1.vercel-dns.com ⭐ | ||||||
| A | 2620:4d:4000:6259:7:13:0:1🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns1.p13.nsone.net | ||||||
| A | 198.51.44.13🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns1.p13.nsone.net | ||||||
| NS | ns2.vercel-dns.com | ||||||
| A | 2a00:edc0:6259:7:13::2🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns2.p13.nsone.net | ||||||
| A | 198.51.45.13🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns2.p13.nsone.net | ||||||
| TXT | google-site-verification=Relf530Yub4KnM200YmGpvlPbfj0Zj9qRHxNjOT4dro | ||||||
| SOA | ns1.vercel-dns.comhostmaster@nsone.net serial=1768893350 | ||||||
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=1776268407 | ||||||
Subdomains
www.a4math.com |
Same first word
a4math.com |
DNS History
5 records (4 active, 1 former)
●NSns1.vercel-dns.com2026-03-25 → 2026-04-15 · 2 obs
● 2026-04-15 16:20:58
●NSns2.vercel-dns.com2026-03-25 → 2026-04-15 · 2 obs
● 2026-04-15 16:20:58
●A216.198.79.652026-04-15 → 2026-04-15 · 3 obs
● 2026-04-15 16:20:56
● 2026-04-15 16:20:58
●A64.29.17.12026-03-25 → 2026-04-15 · 2 obs
● 2026-04-15 16:20:58
○A64.29.17.652026-03-25 → 2026-03-25 · 3 obs
○ 2026-04-15 16:20:56
○ 2026-04-15 16:20:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net... | - |
| a4math.com | ns1.vercel-dns.com, ns2.vercel-dns.com | 4 records |
✅ Authoritative Response
Server:198.51.44.13
NS records: ns1.vercel-dns.com, ns2.vercel-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a4math.com (unsigned zone)
⏱️ Timing
Total: 132ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 216.198.79.1, 64.29.17.65 |
| NS | 2 | ns1.vercel-dns.com, ns2.vercel-dns.com |
| TXT | 1 | google-site-verification=Relf530Yub4KnM2 |
| SOA | 1 | ns1.vercel-dns.com hostmaster.nsone.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.vercel-dns.com, ns1.vercel-dns.com, ns2.vercel-dns.com...)
Analysis
Hierarchy
The parent of www.a4math.com is a4math.com.
IP Addresses
a4math.com resolves to two IP numbers: 64.29.17.1 and 216.198.79.65.
Other host names, for instance vitor.pw, www.google-ready.com, mail.lafa.com.ua, sifat.net and agentart.net share IP numbers with a4math.com.
Name Servers
Two name servers ns1.vercel-dns.com and ns2.vercel-dns.com handle delegation for a4math.com.
a4math.com uses the same name server setup as other domains, for example dejatunes.com, lmp.cl, riderscorner.net, merbuk.com and real-face.com.
a4math.com partially shares name servers with other domains; examples include dynamicrides.co.uk, landmeters.nl, fudthepug.com, glr.se and ydrink.co.
These name servers are commonly used with ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
Host names with two IP numbers:
ns1.vercel-dns.com points to: 2620:4d:4000:6259:7:13:0:1 and 198.51.44.13
ns2.vercel-dns.com points to: 2a00:edc0:6259:7:13::2 and 198.51.45.13