optmath.com - dns.ninja
optmath.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=1785554542 | ||||||
Subdomains
mail.optmath.com |
Same first word
optmath.com |
Similar names
DNS History
7 records (7 active, 0 former)
●NSroot-dns.netcup.net2026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
●NSsecond-dns.netcup.net2026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
●NSthird-dns.netcup.net2026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
●MXmail.optmath.com2026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
●MXmxf9a3.netcup.net2026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
●A2a03:4000:30:607::10:15922026-03-03 → 2026-08-01 · 4 obs
○ 2026-07-02 13:39:42
● 2026-07-13 17:28:06
● 2026-08-01 03:28:06
●A46.38.249.1612026-03-03 → 2026-08-01 · 2 obs
● 2026-08-01 03:28:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net... | - |
| optmath.com | root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net | - |
✅ Authoritative Response
Server:188.68.63.68
NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for optmath.com (unsigned zone)
⏱️ Timing
Total: 722ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.38.249.161 |
| AAAA | 1 | 2a03:4000:30:607::10:1592 |
| NS | 3 | second-dns.netcup.net, root-dns.netcup.net... |
| MX | 2 | mail.optmath.com (pri: 10), mxf9a3.netcup.net (pri: 50) |
| TXT | 1 | v=spf1 mx a include:_spf.webhosting.syst |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
optmath.com serves as the parent of mail.optmath.com.
IP Addresses
optmath.com directs to two IP numbers, 46.38.249.161 and 2a03:4000:30:607::10:1592
Among the host names that share IP numbers with optmath.com are thermodynamik.de, www.webillusions.de, mx0.3d-pdf.de and two others.
Name Servers
Three name servers are authoritative for optmath.com: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
optmath.com has at least partial name server overlap with other domains, such as gratis-hp.de, adhoc-gaming.com, nick-hartmann.de and two others.
root-dns.netcup.net resolves to 46.38.225.225 and 2a03:4000:0:1::e1e1. second-dns.netcup.net resolves to 37.221.199.199 and 2a03:4000:2:24b::c7c7. third-dns.netcup.net resolves to 188.68.63.68 and 2a03:4001:0:106::3f44. All three hostnames point to two IP numbers each.
Mail Servers
The MX records for optmath.com point to two mail servers: mail.optmath.com and mxf9a3.netcup.net.
optmath.com shares at least some of its mail servers with other domains — for example gitanos.de, kloete.de, mr-5.de and two more.
It is common to find these mail servers paired with the mail servers mail.gitanos.de.
Hosts with two IP numbers each:
mxf9a3.netcup.net maps to two IP addresses — 46.38.249.163 and 2a03:4000:0:276:b4c4:95ff:fe50:76a3.
Hosts that resolve to one IP address:
mail.optmath.com points to the IP address 46.38.249.163.
These two host names — mxf9a3.netcup.net and mail.optmath.com — each point to 46.38.249.163 IP addresses.