Multiple major media websites are down this morning, with error codes displaying on each page.
News sites including The Guardian, Financial Times, Independent, New York Times, Evening Standard and French newspaper Le Monde are all down following the sudden outage.
Social media website Reddit, music listening service Spotify as well as Amazon, Ebay and Etsy have all been impacted in the widespread incident.
The Guardian tweeted: "The Guardian's website and app are currently being affected by a wider internet outage and will be back as soon as possible."
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The UK Government website is also down, giving the message "Error 503 Service Unavailable".
Glasgow Club confirmed it has also been impacted by the outage, with its video service down.
The outage appears to have been sparked by an issue with a content delivery network (CDN), a system used to host websites and their content on the internet and serve it to users.
Fastly, one of the world's major CDNs, has reported a major outage across its global network, which is believed to have caused the outage.
The company offers services such as speeding up loading times for websites, protect them from denial-of-service cyberattacks and helping them deal with bursts of traffic in order to stay online and stable.
The US-firm has confirmed it is "currently investigating potential impact to performance with our CDN services".
