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While not infinite, the Internet is vast. Some corners of the web are inaccessible or intentionally hidden, or forgotten, or unknown to most of us. Websites and services that use dynamic DNS are one of these unexplored corners of the web.

ddns search

Among the underworlds of the Internet that tend to be little explored are websites that use Dynamic DNS (known by the acronym DDNS).

Dynamic DNS is basically used to associate a variable IP address to a domain name on the Internet dynamically. Instead of having a fixed, static IP address for a domain name, Dynamic DNS allows the IP address to be updated automatically whenever it changes.

This is useful in situations where the IP address of a device or server changes frequently, such as residential Internet connections or mobile connections.

Some applications and use cases for dynamic DNS include:

  1. Remote access
  2. Web site hosting
  3. Security cameras
  4. Game servers
  5. IoT device access

In other words: a whole universe to explore.

ddns search is a meta-search engine that uses Programmable Search Engine to search for content on the most popular DDNS providers.

Currently, the search is limited to the following domains:

  • *.no-ip.com/
  • *.dynu.com/
  • *.no-ip.com/
  • *.us.to/
  • *.mooo.com/
  • *.v6.rocks/
  • *.v6.navy/
  • *.v6.army/
  • *.dns.army/
  • *.dynv6.net/
  • *.line.pm/
  • *.linkpc.net/
  • *.run.place/
  • *.publicvm.com/
  • *.work.gd/
  • *.duckdns.org/

Some of the most popular TCP ports are also used, such as 8080, 8888, among others.

What can be found with this meta-search engine?

Given the nature of the DDNS service, it is possible to find everything from blogs that are only published in subdomains of these services, to IoT device dashboards, weather stations software, amateur radio programs, pre-production systems, etc.

I still remember some of the treasures that I found in my exploratory sessions:

Sunset View WebCam (Dave and Jayne Ashworth)

Beautiful view of a camera controlled by a Raspberry Pi, with weather data.


Juan Galaz

Juan Galaz is an amateur programmer, lover of Linux, who shares different topics on his site: from programming to an incredible collection of webcams:


Juan Lunas

Juan Lunas has a page where he groups a considerable number of cameras installed in the public thoroughfare of what appears to be the city of Vitoria-Gasteiz, Spain.


Luca Carlon

Luca, a computer engineer from Italy, has a blog that talks about computing in general. The site is hosted on a Raspberry Pi.


William R. Walsh

Excellent website by William R. Walsh who describes himself as: “a fairly normal (read: boring) white male in his 30s. I like tinkering with computers and electronics, something that should be pretty obvious when you visit the site".


Weather stations

Raspberry Pi


Amateur Radio Software

Is the project Open Source?

ddns search is released under the WTFPL license; however, the source code is not in a public repository. The reason: there is not much to show. The little code that is written is in the file /js/ddnssearch.js file. You can download the whole site by running: wget -mkEpnp https://ddnssearch.com

You will need to create your own Custom Search and substitute your ID in the index.html file::

<script async src="https://cse.google.com/cse.js?cx=ID"></script>