core.tools - robtex.com
core.tools
| DNSSEC | ๐ Signed (DS record present) | ||||||
| A | 207.180.250.130๐ฉ๐ช CONTABO207.180.250.0/23 | ||||||
| PTR | vmd36038.contaboserver.net | ||||||
| NS | hk21.irondns.net โญ | ||||||
| A | 2a01:5b0:24::2๐ฉ๐ช KNIPPWORLDWIDE2a01:5b0:24::/48 KNIPP worldwide | ||||||
| PTR | hk21.irondns.net | ||||||
| A | 195.253.100.2๐ฉ๐ช KNIPPWORLDWIDE195.253.100.0/24 KNIPP worldwide | ||||||
| PTR | hk21.irondns.net | ||||||
| NS | us19-east.irondns.net | ||||||
| A | 2a01:5b0:22::4๐ฉ๐ช KNIPPWORLDWIDE2a01:5b0:22::/48 KNIPP worldwide | ||||||
| PTR | us19-east.irondns.net | ||||||
| A | 195.253.98.4๐ฉ๐ช KNIPPWORLDWIDE195.253.98.0/24 KNIPP worldwide | ||||||
| PTR | us19-east.irondns.net | ||||||
| NS | us20-west.irondns.net | ||||||
| A | 2a01:5b0:23::2๐ฉ๐ช KNIPPWORLDWIDE2a01:5b0:23::/48 KNIPP worldwide | ||||||
| PTR | us20-west.irondns.net | ||||||
| A | 195.253.99.2๐ฉ๐ช KNIPPWORLDWIDE195.253.99.0/24 KNIPP worldwide | ||||||
| PTR | us20-west.irondns.net | ||||||
| SOA | hk21.irondns.netsecretariat@corenic.org serial=650 | ||||||
tools
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | v0n0.nic.tools โญ | ||||||
| NS | v0n1.nic.tools | ||||||
| NS | v0n2.nic.tools | ||||||
| NS | v0n3.nic.tools | ||||||
| NS | v2n0.nic.tools | ||||||
| NS | v2n1.nic.tools | ||||||
| SOA | v0n0.nic.toolshostmaster@donuts.email serial=1792829658 | ||||||
Same first word
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DNS History
4 records (4 active, 0 former)
โNShk21.irondns.net2026-10-07 โ 2026-10-24 ยท 2 obs
โ 2026-10-24 08:44:12
โNSus19-east.irondns.net2026-10-07 โ 2026-10-24 ยท 2 obs
โ 2026-10-24 08:44:12
โNSus20-west.irondns.net2026-10-07 โ 2026-10-24 ยท 2 obs
โ 2026-10-24 08:44:12
โA207.180.250.1302026-10-07 โ 2026-10-24 ยท 2 obs
โ 2026-10-24 08:44:12
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tools | v0n1.nic.tools, v0n3.nic.tools, v2n1.nic.tools, v0n0.nic.tools... | 12 records |
| core.tools | hk21.irondns.net, us19-east.irondns.net, us20-west.irondns.net | - |
โ Authoritative Response
Server:195.253.100.2
NS records: hk21.irondns.net, us19-east.irondns.net, us20-west.irondns.net
๐ DNSSEC Status
๐ Secure (DNSSEC validated)
Chain of trust verified from root to domain
โฑ๏ธ Timing
Total: 1531ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.180.250.130 |
| NS | 3 | us19-east.irondns.net, us20-west.irondns.net... |
| SOA | 1 | hk21.irondns.net secretariat.corenic.org |
๐ Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n1.nic.tools, v0n1.nic.tools, v0n3.nic.tools...)
Analysis
IP Addresses
core.tools resolves to one IP address: 207.180.250.130.
Name Servers
DNS for core.tools is handled by three authoritative name servers: hk21.irondns.net, us19-east.irondns.net and us20-west.irondns.net.
core.tools shares at least some of its name servers with other domains, including frimo.us, tmail.us, renzel.us and two others.
These name servers are frequently paired with the name servers pns.dtag.de, secondary004.dtag.net and ns22.irondns.net.
Three hostnames โ hk21.irondns.net, us19-east.irondns.net and us20-west.irondns.net โ each have two IP addresses: hk21.irondns.net has 195.253.100.2 and 2a01:5b0:24::2, us19-east.irondns.net has 195.253.98.4 and 2a01:5b0:22::4, and us20-west.irondns.net has 195.253.99.2 and 2a01:5b0:23::2.