A CDN provider can suspend or switch off the zone that delivers a site, usually without giving a reason. Your website is still fine on our servers, but visitors who reach it through that network get an error page instead.
What happens automatically
We check every CDN zone on our networks every ten minutes. When the zone your site is served from has been suspended for an hour, we move the site to another CDN from our pool:
- We build the site on the new CDN while the old zone is left alone.
- We point your domain at the new CDN. Your nameservers do not change, so there is
nothing to update at your registrar.
- We check from outside that your site answers again, and only then e-mail you that it is
back online.
Pages may load from a cold cache for a little while as the new network fills it.
When we cannot move it for you
Some sites need you to decide:
- the site is on a CDN account of your own — it is your account and your choice;
- your domain's DNS is not managed by us, so we cannot point it at the new CDN;
- the move did not complete.
Then you get an e-mail and a notice on the site's CDN page straight away. Open it and choose another CDN — we build the new zone, point your domain at it and remove the old one once the new one serves. If your domain's DNS is elsewhere, reply to the e-mail and we will tell you the record to change.