mathproblem.org - dns.ninja
mathproblem.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:21fcCloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:9812Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.33.252Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.152.18Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | charles.ns.cloudflare.com ⭐ | ||||||
| NS | grannbo.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.33.252, 172.67.152.18 | ||||||
| IPv6 hints | 2606:4700:3035::6815:21fc, 2606:4700:3037::ac43:9812 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=124, name=cloudflare-ech.com | ||||||
| SOA | charles.ns.cloudflare.comdns@cloudflare.com serial=2415550960 | ||||||
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=1792757636 | ||||||
DNS History
6 records (6 active, 0 former)
●NScharles.ns.cloudflare.com2026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
●NSgrannbo.ns.cloudflare.com2026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
●A104.21.33.2522026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
●A172.67.152.182026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
●A2606:4700:3035::6815:21fc2026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
●A2606:4700:3037::ac43:98122026-09-17 → 2026-10-23 · 2 obs
● 2026-09-17 02:43:42
● 2026-10-23 12:49:00
● 2026-10-23 12:49:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| mathproblem.org | grannbo.ns.cloudflare.com, charles.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.150
NS records: grannbo.ns.cloudflare.com, charles.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathproblem.org (unsigned zone)
⏱️ Timing
Total: 2316ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.152.18, 104.21.33.252 |
| AAAA | 2 | 2606:4700:3035::6815:21fc, 2606:4700:3037::ac43:9812 |
| NS | 2 | charles.ns.cloudflare.com, grannbo.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | charles.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
mathproblem.org directs to four IP numbers, which are 104.21.33.252, 172.67.152.18, 2606:4700:3035::6815:21fc and 2606:4700:3037::ac43:9812.
Name Servers
mathproblem.org is served by two delegated name servers, charles.ns.cloudflare.com and grannbo.ns.cloudflare.com.