mathscool.org - dns.ninja
mathscool.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.233.180.5🇮🇹 BASICNETWORKS-AS91.233.180.0/24 | ||||||
| PTR | secure.eu-server.net | ||||||
| NS | ns1.eu-server.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 91.233.180.5🇮🇹 BASICNETWORKS-AS91.233.180.0/24 | ||||||
| PTR | secure.eu-server.net | ||||||
| NS | ns1.server-15.com ⚠️ Not in zone NS records | ||||||
| A | 91.233.180.5🇮🇹 BASICNETWORKS-AS91.233.180.0/24 | ||||||
| PTR | secure.eu-server.net | ||||||
| NS | ns2.eu-server.net ⚠️ Not in parent delegation | ||||||
| A | 31.13.230.55🇧🇬 TELE9031.13.230.0/24 Telecom GmbH | ||||||
| PTR | ns2.eu-server.net | ||||||
| NS | ns2.server-15.com ⚠️ Not in zone NS records | ||||||
| A | 31.13.230.55🇧🇬 TELE9031.13.230.0/24 Telecom GmbH | ||||||
| PTR | ns2.eu-server.net | ||||||
| MX | mathscool.org ⭐ | ||||||
| A | 91.233.180.5🇮🇹 BASICNETWORKS-AS91.233.180.0/24 | ||||||
| PTR | secure.eu-server.net | ||||||
| TXT | v=spf1 ip4:91.233.180.5 +a +mx ~all | ||||||
| SOA | ns1.eu-server.netsupport@server-1.com 2026-05-16 #1 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784117823 | ||||||
MX for
mathscool.org |
Same first word
mathscool.org |
mathscool.com |
Similar names
alcomhost.com |
atmschool.com |
solomatch.com |
machtools.in |
mochaslot.com |
machtools.it |
coolmaths.co.uk |
solomatch.net |
machtools.com |
toolsmach.com |
amtschool.net |
alcomhost.net |
coolmaths.com |
matschool.de |
DNS History
7 records (6 active, 1 former)
●NSns1.eu-server.net2026-02-22 → 2026-07-15 · 3 obs
● 2026-02-22 12:41:30
● 2026-07-15 12:40:20
●NSns1.server-15.com2015-08-02 → 2026-07-15 · 2 obs
● 2026-07-15 12:40:20
●NSns2.eu-server.net2026-02-22 → 2026-07-15 · 3 obs
● 2026-02-22 12:41:30
● 2026-07-15 12:40:20
●NSns2.server-15.com2015-08-02 → 2026-07-15 · 2 obs
● 2026-07-15 12:40:20
●MXmathscool.org2015-08-02 → 2026-07-15 · 2 obs
● 2026-07-15 12:40:20
○A212.72.165.792015-08-02 → 2017-01-29 · 4 obs
● 2017-01-29 13:39:28
○ 2026-02-22 12:41:30
○ 2026-07-15 12:40:20
●A91.233.180.52026-02-22 → 2026-07-15 · 3 obs
● 2026-02-22 12:41:30
● 2026-07-15 12:40:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| mathscool.org | ns1.server-15.com, ns2.server-15.com | - |
✅ Authoritative Response
Server:91.233.180.5
NS records: ns1.server-15.com, ns2.server-15.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathscool.org (unsigned zone)
⏱️ Timing
Total: 1087ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.233.180.5 |
| NS | 2 | ns2.eu-server.net, ns1.eu-server.net |
| MX | 1 | mathscool.org (pri: 0) |
| TXT | 1 | v=spf1 ip4:91.233.180.5 +a +mx ~all |
| SOA | 1 | ns1.eu-server.net support.server-1.com |
Analysis
Mail Server Role
mathscool.org is listed as a mail server for itself.
IP Addresses
mathscool.org resolves to one IP address: 91.233.180.5.
mail.raypasnen.com, 007-host.com, ns2.server-eu.com and two other host names share IP numbers with mathscool.org.
Name Servers
The authoritative name servers for mathscool.org are ns1.server-15.com, ns2.server-15.com, ns1.eu-server.net and ns2.eu-server.net.
There is at least partial name server overlap between mathscool.org and other domains — roverdesign.ch, cheap-host.eu, server-eu.com and two more among them.
Of the four host names ns1.server-15.com, ns2.server-15.com, ns1.eu-server.net and ns2.eu-server.net, each resolves to a single IP address: ns1.server-15.com to 91.233.180.5, ns2.server-15.com to 31.13.230.55, ns1.eu-server.net to 91.233.180.5 and ns2.eu-server.net to 31.13.230.55.
These two host names — ns1.server-15.com and ns1.eu-server.net — each point to 91.233.180.5 IP addresses.
These two host names — ns2.server-15.com and ns2.eu-server.net — each point to 31.13.230.55 IP addresses.
Mail Servers
Mail for mathscool.org is handled by one mail server — mathscool.org.
There is one IP number for mathscool.org: 91.233.180.5.