math.is - dns.ninja
math.is
| DNSSEC | ⚠️ Not signed | ||||||
| A | 66.45.226.106🇺🇸 NJIIX-166.45.224.0/19 NJIIX.net 110B Meadowlands Pkwy Secaucus, NJ 07094 | ||||||
| NS | cdns1.interserver.net ⭐ | ||||||
| A | 216.158.228.164🇺🇸 NJIIX-1216.158.224.0/20 Proxy by NJIIX.NET | ||||||
| PTR | cdns1.interserver.net | ||||||
| NS | cdns2.interserver.net | ||||||
| A | 216.158.234.243🇺🇸 NJIIX-1216.158.224.0/20 Proxy by NJIIX.NET | ||||||
| PTR | cdns2.interserver.net | ||||||
| NS | cdns3.interserver.net | ||||||
| A | 199.231.191.75🇺🇸 NJIIX-1199.231.184.0/21 Proxy by NJIIX.NET | ||||||
| PTR | cdns3.interserver.net | ||||||
| MX | mail.math.is ⭐ | ||||||
| A | 66.45.226.106🇺🇸 NJIIX-166.45.224.0/19 NJIIX.net 110B Meadowlands Pkwy Secaucus, NJ 07094 | ||||||
| TXT | v=spf1 +mx +a +ip4:173.225.100.50 +include:relay.mailbaby.net +include:relay.... | ||||||
| SOA | cdns1.interserver.netdns@interserver.net 2026-06-20 #0 | ||||||
is
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.is ⭐ | ||||||
| NS | c.nic.is | ||||||
| NS | d.nic.is | ||||||
| NS | e.nic.is | ||||||
| NS | f.nic.is | ||||||
| SOA | a.nic.ishostmaster@isnic.is serial=1784106601 | ||||||
Subdomains
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
●NScdns1.interserver.net2026-02-21 → 2026-07-15 · 3 obs
● 2026-02-21 14:22:30
● 2026-07-15 09:59:10
●NScdns2.interserver.net2026-02-21 → 2026-07-15 · 3 obs
● 2026-02-21 14:22:30
● 2026-07-15 09:59:10
●NScdns3.interserver.net2026-02-21 → 2026-07-15 · 3 obs
● 2026-02-21 14:22:30
● 2026-07-15 09:59:10
○NSliv.ns.cloudflare.com2016-12-23 → 2016-12-23 · 3 obs
○ 2026-02-21 14:22:30
○ 2026-07-15 09:59:10
○NSlynn.ns.cloudflare.com2016-12-23 → 2016-12-23 · 3 obs
○ 2026-02-21 14:22:30
○ 2026-07-15 09:59:10
●MXmail.math.is2026-02-21 → 2026-07-15 · 2 obs
● 2026-07-15 09:59:10
○A5.9.83.892016-12-23 → 2016-12-23 · 3 obs
○ 2026-02-21 14:22:30
○ 2026-07-15 09:59:10
●A66.45.226.1062026-02-21 → 2026-07-15 · 3 obs
● 2026-02-21 14:22:30
● 2026-07-15 09:59:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | f.nic.is, e.nic.is, a.nic.is, c.nic.is... | - |
| math.is | cdns2.interserver.net, cdns1.interserver.net, cdns3.interserver.net | - |
✅ Authoritative Response
Server:216.158.234.243
NS records: cdns2.interserver.net, cdns1.interserver.net, cdns3.interserver.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for math.is (unsigned zone)
⏱️ Timing
Total: 861ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 66.45.226.106 |
| NS | 3 | cdns3.interserver.net, cdns2.interserver.net... |
| MX | 1 | mail.math.is (pri: 25) |
| TXT | 1 | v=spf1 +mx +a +ip4:173.225.100.50 +inclu |
| SOA | 1 | cdns1.interserver.net dns.interserver.ne |
Analysis
Hierarchy
The parent domain of vps.math.is and mail.math.is is math.is.
IP Addresses
math.is directs to one IP number, which is 66.45.226.106.
Among the host names that share IP numbers with math.is are joesshop.net, enlightenmentis.com, cpanel.joshmathis.com and two others.
Name Servers
math.is is delegated to three name servers: cdns1.interserver.net, cdns2.interserver.net and cdns3.interserver.net.
math.is has at least partial name server overlap with other domains, such as alankaa.com, nwadgrewards.com, unicoplus.com and two others.
cdns1.interserver.net, cdns2.interserver.net and cdns3.interserver.net each resolve to a single IP address: cdns1.interserver.net resolves to 216.158.228.164, cdns2.interserver.net resolves to 216.158.234.243 and cdns3.interserver.net resolves to 199.231.191.75.
Mail Servers
math.is routes its mail through a single mail server, mail.math.is.
mail.math.is resolves to a single IP number: 66.45.226.106.