Since this morning (May 25, 2021) around 10:00 am (GMT -4:00 Eastern Time), all the sites that I host give the error 523. But intermittently.
Sometimes the sites work fine and 5 minutes later, there is an error 523. A few minutes later the sites come back and fall back to 523 just after.
Yesterday and today this morning before 10:00 am the hosting server was working perfectly. Nothing has been changed on the side of the host server. The hosting server is located in the Canada region of Montreal.
The traffic has decreased by 10 times.
Do you know if I am the only one with this problem?
I am trying to locate the problem but since nothing has changed on the hosting server side, I am trying to find where it all came from.
Sites are www.sweepstakespit.com, www.concoursenligne.ca, www.appartqc.ca, and other more.