Comment by lpmitchell

This seems to be impacting a number of huge sites, including the UK government website[0].

[0] https://www.gov.uk/

https://m.media-amazon.com/

https://pages.github.com/

https://www.paypal.com/

https://stackoverflow.com/

https://nytimes.com/

Edit:

Fastly's incident report status page: https://status.fastly.com/incidents/vpk0ssybt3bj