Downdetector is an online platform that provides users with real-time information about the status of various

website A website (also written as a web site) is any web page whose content is identified by a common domain name and is published on at least one web server. Websites are typically dedicated to a particular topic or purpose, such as news, educatio ...

s and services. The information that is provided by the site is based upon user outage reports, which are collected from various sources, including the page for each website on Downdetector itself and

Twitter Twitter, officially known as X since 2023, is an American microblogging and social networking service. It is one of the world's largest social media platforms and one of the most-visited websites. Users can share short text messages, image ...

. A map is also shown with the locations of the outage reports, and a list of cities with the corresponding number of reports is shown above the map. Downdetector is available in 45 countries, with a different site for each country. Additionally, Downdetector tracks over 12,000 services internationally. Downdetector was founded in April 2012 by Tom Sanders and Sander van de Graaf. Downdetector was acquired by Ookla, the company behind

Speedtest.net Speedtest.net, also known as Speedtest by Ookla, is a web service that provides free analysis of Internet access performance metrics, such as connection data rate and latency. It is the flagship product of Ookla, a web testing and network di ...

, in August 2018. On January 14, 2025, the standalone application added a banner stating its discontinuation in favor of merging with the Speedtest by Ookla application on iOS and Android.

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Websites Internet properties established in 2012 2018 mergers and acquisitions {{Website-stub