Is there a way to send Grafana dashboard snapshots to a website after a fixed interval of time
Maybe this could be used together with a cron job to send PDF snapshots (not Grafana snapshots):
You could also get a png snapshot of a panel using the direct rendered image link. For example, this link is the direct rendered image link for a panel on the home page of the Grafana play site
You could create a cron job (or other service with a timer) that regularly downloads that link.