Edit: Cloudflare has an "increased error rates" incident going right now that started around 9:35am that they're saying is due to a fiber cut. They're still working to resolve the issue but maybe it was partially worked around pretty quickly? https://new.cloudflarestatus.com/incidents/v3yl7jqmqj51
Based on Downdetector some services started having issues around 9:30 but some other services didn't have issues until 10:00 so maybe there was some kind of domino effect.