pythonstudio.duckdns.org - dns.ninja
pythonstudio.duckdns.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 31.70.100.156🇬🇧 BT-UK-AS31.64.0.0/12 | ||||||
| PTR | ip31-70-100-156.pbiaas.com | ||||||
| MX | pythonstudio.duckdns.org ⭐ | ||||||
| A | 31.70.100.156🇬🇧 BT-UK-AS31.64.0.0/12 | ||||||
| PTR | ip31-70-100-156.pbiaas.com | ||||||
duckdns.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 16.52.4.238🇺🇸 Amazon16.52.0.0/16 EC2 YUL prefix | ||||||
| NS | ns1.duckdns.org ⭐ | ||||||
| NS | ns2.duckdns.org | ||||||
| NS | ns3.duckdns.org | ||||||
| NS | ns4.duckdns.org | ||||||
| NS | ns5.duckdns.org | ||||||
| NS | ns6.duckdns.org | ||||||
| NS | ns7.duckdns.org | ||||||
| NS | ns8.duckdns.org | ||||||
| NS | ns9.duckdns.org | ||||||
| MX | smtp.google.com ⭐ | ||||||
| TXT | google-site-verification=D-6gaVUztvrU5uB_hbdBs3hAL9zswN_qHCJoOLIbU54 | ||||||
| SOA | ns1.duckdns.orghostmaster@duckdns.org 2026-09-07 #2 | ||||||
rank #520 in the tld
⚠️ On DNS blocklist: dyndns
📈 Tranco rank: #198
DuckDNS - Free Dynamic DNS Service
DuckDNS is a free dynamic DNS (DDNS) service that allows users to map a subdomain underduckdns.orgto their dynamically changing IP address. This is particularly useful for home servers, IoT devices, and self-hosted services where the ISP assigns a new IP address periodically. The service is entirely free with no paid tiers—operational costs are covered through optional donations via Patreon and Bitcoin.
Key Features
- Free dynamic DNS with subdomains like
yourname.duckdns.org - Simple HTTP/HTTPS API for updating IP addresses (works with scripts, routers, and IoT devices)
- Automatic IP detection when no IP is specified in the update request
- Custom domain support via CNAME records pointing to your DuckDNS subdomain
- Multiple authentication options: Google, GitHub, Twitter (Reddit login discontinued due to legal request)
- Minimal data collection: only stores email, IP, token, domains, and target IPs
Technical Infrastructure
- Hosted entirely on AWS (Amazon Web Services)
- Primary server: 15.223.156.67 (AWS Canada - ca-central-1)
- 9 nameservers (ns1-ns9.duckdns.org), all on AWS Canada infrastructure
- Mail: Handled by Amazon SES (inbound-smtp.us-west-2.amazonaws.com)
- DNSSEC: Not signed
- IPv6: Detection not currently supported due to AWS VPC limitations
History & Community
DuckDNS was created by a small team who wanted a simple, reliable DDNS service for their own use. The project operates at minimal cost by leveraging AWS infrastructure efficiently. It has gained recognition in the self-hosting community and was recommended by Gnu Tomorrow as a quality free DDNS option. The service maintains an active community through Google Groups for support and discussion.
MX for
pythonstudio.duckdns.org |
Same first word
Similar names
Previous names
Next names
DNS History
2 records (2 active, 0 former)
●MXpythonstudio.duckdns.org2026-09-18 → 2026-09-29 · 2 obs
● 2026-09-29 07:04:46
●A31.70.100.1562026-09-18 → 2026-09-29 · 2 obs
● 2026-09-29 07:04:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| duckdns.org | ns1.duckdns.org, ns9.duckdns.org, ns5.duckdns.org, ns7.duckdns.org... | 9 records |
✅ Authoritative Response
Server:3.97.51.116
NS records: ns1.duckdns.org, ns9.duckdns.org, ns5.duckdns.org, ns7.duckdns.org, ns8.duckdns.org, ns2.duckdns.org, ns4.duckdns.org, ns6.duckdns.org, ns3.duckdns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duckdns.org (unsigned zone)
⏱️ Timing
Total: 381ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.70.100.156 |
| MX | 1 | pythonstudio.duckdns.org (pri: 50) |
| TXT | 1 | |
📌 Glue Records Collected
Total: 9
In-bailiwick: 9 (ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org...)
Analysis
Mail Server Role
The MX record for pythonstudio.duckdns.org points back to pythonstudio.duckdns.org — it is its own mail server.
IP Addresses
pythonstudio.duckdns.org directs to one IP number, which is 31.70.100.156.
Mail Servers
The MX record for pythonstudio.duckdns.org points to a single mail server: pythonstudio.duckdns.org.
pythonstudio.duckdns.org points to one IP number — 31.70.100.156.