coolchallenge.nl - robtex.com
coolchallenge.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:14f🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3030::ac43:80ca🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.1.79Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.128.202🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dimitris.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c06🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c306🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2306🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| A | 108.162.195.6🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| A | 162.159.44.6Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| A | 172.64.35.6🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dimitris.ns.cloudflare.com | ||||||
| NS | ophelia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26f8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2f8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22f8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| A | 108.162.194.248🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| A | 162.159.38.248Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| A | 172.64.34.248🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ophelia.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.1.79, 172.67.128.202 | ||||||
| IPv6 hints | 2606:4700:3030::6815:14f, 2606:4700:3030::ac43:80ca | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=241, name=cloudflare-ech.com | ||||||
| SOA | dimitris.ns.cloudflare.comdns@cloudflare.com serial=2400436855 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-13 13:30:02 +0000 (EPOCH 1776087002) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-13 #26 | ||||||
rank #11492 in the tld
Same first word
coolchallenge.nl |
DNS History
6 records (6 active, 0 former)
●NSdimitris.ns.cloudflare.com2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
●NSophelia.ns.cloudflare.com2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
●A104.21.1.792026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
●A172.67.128.2022026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
●A2606:4700:3030::6815:14f2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
●A2606:4700:3030::ac43:80ca2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-13 14:07:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| coolchallenge.nl | ophelia.ns.cloudflare.com, dimitris.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.195.6
NS records: ophelia.ns.cloudflare.com, dimitris.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coolchallenge.nl (unsigned zone)
⏱️ Timing
Total: 134ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.1.79, 172.67.128.202 |
| AAAA | 2 | 2606:4700:3030::ac43:80ca, 2606:4700:3030::6815:14f |
| NS | 2 | dimitris.ns.cloudflare.com, ophelia.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dimitris.ns.cloudflare.com dns.cloudflar |
Analysis
IP Addresses
coolchallenge.nl resolves to four IP numbers: 2606:4700:3030::6815:14f, 2606:4700:3030::ac43:80ca, 104.21.1.79 and 172.67.128.202.
Other host names such as travenorixaelo.sbs, briojobs.com, decwork.ru, revisium.com and inoneo.com share IPs with coolchallenge.nl.
Name Servers
coolchallenge.nl is delegated to two name servers: dimitris.ns.cloudflare.com and ophelia.ns.cloudflare.com.
coolchallenge.nl shares the same name server setup as abreai.com, stepbrandshoes.gr, trinityrelocationgroup.com, glimp.net and cherokeemech.net.
coolchallenge.nl at least partially shares name servers with other domains, for instance 360biolabs.com, goldspire-nexor-soft.com, opalsupport.com, solteblinds.com.au and proportionalplate.com.
these name servers are often used in conjunction with the name servers treasure.ns.cloudflare.com.
Host names with six IP numbers:
dimitris.ns.cloudflare.com points to 2606:4700:58::a29f:2c06, 2803:f800:50::6ca2:c306, 2a06:98c1:50::ac40:2306, 108.162.195.6, 162.159.44.6 and 172.64.35.6.
ophelia.ns.cloudflare.com points to 2606:4700:50::a29f:26f8, 2803:f800:50::6ca2:c2f8, 2a06:98c1:50::ac40:22f8, 108.162.194.248, 162.159.38.248 and 172.64.34.248.