https://www.bbc.co.uk/news/technology-57399628
Looks like reddit is one of those affected too
A number of leading media websites are currently not working, including the Guardian, Financial Times, Independent and the New York Times.
The UK government website - gov.uk - is also down.
Affected websites displayed the message: "Error 503 Service Unavailable".
Early reports have suggested it could be related to Fastly, a cloud computing provider, which underpins a lot of major websites.
Looks like reddit is one of those affected too

I guess it's too difficult to fix the issue so it actually recognises the number or put a bit of text on the page to say leave off the last 3 digits...