In the case that you should notice stale content for a longer period of time a firewall of your server might start blocking requests from our infrastructure.
This can happen because of a strict firewall or because of the size of your webpage or a small refresh interval set in your Speed Kit App, which both might lead to unusually large amounts of requests from our servers to yours.
This will result in requests from our servers not coming through and thus periodic refreshes of your website's content failing.
If you notice this happening, please add our IP range to your firewall whitelist:
If for some reason you can only add /24 ranges ( e.g. when using Cloudflare), please add: