L.ssl.fastly.net points to new IP


I’m getting an alert from one of my monitors that l.ssl.fastly.net is now pointing to a new IP address. I’m just making sure that:

  1. This is known change.
  2. How often does this change?



From what to what IP did it change? The last octet of the IP should not change, but depending on which datacenter you’re routed to, the first three octets can change rather frequently. Depending on your location it could be every couple of minutes even. Factors are BGP route changes, multiple datacenters tasked to serve a region, load shedding from one datacenter to another, maintenance, and more.