cool.education - robtex.com
cool.education
| DNSSEC | ⚠️ Not signed | ||||||
| A | 84.241.172.203🇳🇱 PREVIDER-AS84.241.128.0/18 Previder BV - NL | ||||||
| PTR | host-84-241-172-203.dsl.introweb.nl | ||||||
| NS | nsauth1.introweb.nl ⭐ | ||||||
| A | 2001:1690:1:a::a🇳🇱 PREVIDER-AS2001:1690::/32 NL-PREVIDER-IPV6 | ||||||
| PTR | nsauth1.introweb.nl | ||||||
| A | 80.65.96.48🇳🇱 PREVIDER-AS80.65.96.0/19 Previder BV - NL | ||||||
| PTR | nsauth1.introweb.nl | ||||||
| NS | nsauth2.introweb.nl | ||||||
| A | 2a0d:8600:1::5a🇳🇱 DCSPINE2a0d:8600::/29 | ||||||
| PTR | nsauth2.introweb.nl | ||||||
| A | 86.105.160.91🇺🇸 DCSPINE86.105.160.0/22 | ||||||
| PTR | nsauth2.introweb.nl | ||||||
| NS | nsauth3.introweb.net | ||||||
| A | 2001:1690:1:c::a🇳🇱 PREVIDER-AS2001:1690::/32 NL-PREVIDER-IPV6 | ||||||
| PTR | nsauth3.introweb.net | ||||||
| A | 62.165.127.221🇳🇱 PREVIDER-AS62.165.64.0/18 Previder BV - NL | ||||||
| PTR | nsauth3.introweb.net | ||||||
| SOA | nsauth1.introweb.nlhostmaster@introweb.nl serial=1 | ||||||
education
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.education ⭐ | ||||||
| NS | v0n1.nic.education | ||||||
| NS | v0n2.nic.education | ||||||
| NS | v0n3.nic.education | ||||||
| NS | v2n0.nic.education | ||||||
| NS | v2n1.nic.education | ||||||
| SOA | v0n0.nic.educationhostmaster@donuts.email serial=1775984689 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSnsauth1.introweb.nl2026-04-10 → 2026-04-12 · 2 obs
● 2026-04-12 09:35:00
●NSnsauth2.introweb.nl2026-04-10 → 2026-04-12 · 2 obs
● 2026-04-12 09:35:00
●NSnsauth3.introweb.net2026-04-10 → 2026-04-12 · 2 obs
● 2026-04-12 09:35:00
●A84.241.172.2032026-04-10 → 2026-04-12 · 2 obs
● 2026-04-12 09:35:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| education | v0n0.nic.education, v0n1.nic.education, v0n2.nic.education, v0n3.nic.education... | 12 records |
| cool.education | nsauth1.introweb.nl, nsauth3.introweb.net, nsauth2.introweb.nl | - |
✅ Authoritative Response
Server:86.105.160.91
NS records: nsauth1.introweb.nl, nsauth3.introweb.net, nsauth2.introweb.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cool.education (unsigned zone)
⏱️ Timing
Total: 846ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 84.241.172.203 |
| NS | 3 | nsauth2.introweb.nl, nsauth1.introweb.nl... |
| SOA | 1 | nsauth1.introweb.nl hostmaster.introweb. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.education, v0n1.nic.education, v0n2.nic.education...)
Analysis
IP Addresses
cool.education points to a single IP: 84.241.172.203.
Other host names such as apps.moo.nl and suite.moo.nl share IP numbers with cool.education.
Name Servers
cool.education is delegated to three name servers: nsauth3.introweb.net, nsauth1.introweb.nl and nsauth2.introweb.nl.
cool.education partially shares name servers with other domains; examples include kienhuishoving.nl, speelzolder.be, kdvlaluna.nl, 129.241.84.in-addr.arpa and trainingsmolen.com.
these name servers are commonly used with the name servers ns.arkin.nl.
Host names with two IP numbers:
nsauth3.introweb.net points to 2001:1690:1:c::a and 62.165.127.221.
nsauth1.introweb.nl points to 2001:1690:1:a::a and 80.65.96.48.
nsauth2.introweb.nl points to 2a0d:8600:1::5a and 86.105.160.91.