devpycourse.com - dns.ninja
devpycourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:5057 ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:b09f ✓ In HTTPS hints | ||||||
| A | 104.21.80.87 ✓ In HTTPS hints | ||||||
| A | 172.67.176.159 ✓ In HTTPS hints | ||||||
| NS | david.ns.cloudflare.com ⭐ | ||||||
| NS | tia.ns.cloudflare.com | ||||||
| MX | _dc-mx.1bd055d48b5e.devpycourse.com ⭐ | ||||||
| TXT | v=spf1 a mx include:relay.mailchannels.net ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.80.87, 172.67.176.159 | ||||||
| IPv6 hints | 2606:4700:3033::6815:5057, 2606:4700:3033::ac43:b09f | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=9, name=cloudflare-ech.com | ||||||
| SOA | david.ns.cloudflare.comdns@cloudflare.com serial=2419001617 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1793656541 | ||||||
DNS History
7 records (7 active, 0 former)
●NSdavid.ns.cloudflare.com2026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●NStia.ns.cloudflare.com2026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●MX_dc-mx.1bd055d48b5e.devpycourse.com2026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●A104.21.80.872026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●A172.67.176.1592026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●A2606:4700:3033::6815:50572026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
●A2606:4700:3033::ac43:b09f2026-09-08 → 2026-11-02 · 2 obs
● 2026-09-08 21:16:16
● 2026-11-02 21:58:42
● 2026-11-02 21:58:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| devpycourse.com | david.ns.cloudflare.com, tia.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.152
NS records: david.ns.cloudflare.com, tia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 1861ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.176.159, 104.21.80.87 |
| AAAA | 2 | 2606:4700:3033::6815:5057, 2606:4700:3033::ac43:b09f |
| NS | 2 | david.ns.cloudflare.com, tia.ns.cloudflare.com |
| MX | 1 | _dc-mx.1bd055d48b5e.devpycourse.com (pri |
| TXT | 1 | v=spf1 a mx include:relay.mailchannels. |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | david.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (david.ns.cloudflare.com, david.ns.cloudflare.com, david.ns.cloudflare.com...)
Analysis
IP Addresses
devpycourse.com points to four IP numbers: 104.21.80.87, 172.67.176.159, 2606:4700:3033::6815:5057 and 2606:4700:3033::ac43:b09f.
Name Servers
devpycourse.com is delegated to two name servers, david.ns.cloudflare.com and tia.ns.cloudflare.com.
Mail Servers
devpycourse.com is handled by one mail server, _dc-mx.1bd055d48b5e.devpycourse.com.