check.linux.do - dns.ninja
check.linux.do
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:10::6814:10ea🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:10::ac42:a63d🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.20.16.234Cloudflare104.20.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.66.166.61🇺🇸 Cloudflare172.66.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.20.16.234, 172.66.166.61 | ||||||
| IPv6 hints | 2606:4700:10::6814:10ea, 2606:4700:10::ac42:a63d | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=67, name=cloudflare-ech.com | ||||||
linux.do
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dahlia.ns.cloudflare.com ⚠️ Not in zone NS records | ||||||
| NS | marek.ns.cloudflare.com ⚠️ Not in zone NS records | ||||||
rank #10 in the tld
linux.do
Key facts
- Owner / operator: unknown
- TLD:
.do— ccTLD for the Dominican Republic - Primary purpose: community forum / discussion board for Linux and related tech topics
- Status: active
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●A104.20.16.2342026-03-18 → 2026-07-05 · 2 obs
● 2026-03-18 00:38:46
● 2026-07-05 00:45:22
● 2026-07-05 00:45:22
●A172.66.166.612026-03-18 → 2026-07-05 · 2 obs
● 2026-03-18 00:38:46
● 2026-07-05 00:45:22
● 2026-07-05 00:45:22
●A2606:4700:10::6814:10ea2026-03-18 → 2026-07-05 · 2 obs
● 2026-03-18 00:38:46
● 2026-07-05 00:45:22
● 2026-07-05 00:45:22
●A2606:4700:10::ac42:a63d2026-03-18 → 2026-07-05 · 2 obs
● 2026-03-18 00:38:46
● 2026-07-05 00:45:22
● 2026-07-05 00:45:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| do | a.lactld.org, ns.nic.do, ns1.nic.do, ns2.nic.do... | 14 records |
| linux.do | marek.ns.cloudflare.com, dahlia.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.202
NS records: marek.ns.cloudflare.com, dahlia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for do (unsigned zone)
⏱️ Timing
Total: 4292ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.66.166.61, 104.20.16.234 |
| AAAA | 2 | 2606:4700:10::ac42:a63d, 2606:4700:10::6814:10ea |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 14
In-bailiwick: 10 (ns.nic.do, ns.nic.do, ns1.nic.do...)
Out-of-bailiwick: 4 (a.lactld.org, a.lactld.org, phloem.uoregon.edu...)
Analysis
IP Addresses
check.linux.do resolves to four IP addresses: 104.20.16.234, 172.66.166.61, 2606:4700:10::6814:10ea and 2606:4700:10::ac42:a63d.
Among the host names that share IP numbers with check.linux.do are status.linux.do, linuxdo.de, www.volunteergardener.org and two others.