According to Wikipedia, "as of 2017, Cloudflare provides DNS services to 12 million websites". It is being widely reported thousands of sites are unavailable due to an outage at Cloudflare. Looking at the Newslookup.com crawler so far today I am finding about 40 news sites out of 1500 aggregated today are unreachable due to the problem at Cloudflare.
Cloudflare Status reports. [URL=https://www.cloudflarestatus.com/]https://www.cloudflarestatus.com/[/URL]
HTTP 502 errors
Monitoring - Cloudflare has implemented a fix for this issue and is currently monitoring the results.
We will update the status once the issue is resolved.
Jul 2, 14:15 UTC
Investigating - Cloudflare is observing network performance issues. Customers may be experiencing 502 errors while accessing sites on Cloudflare.
We are working to mitigate impact to Internet users in this region.
Jul 2, 13:52 UTC