Sometimes the realtime figures in GA show surging peaks every 5 minutes.
This is not reflected at all in the server's access logs and is obviously a GA related issue:
- The strange figures show up only in the afternoon/evening time.
- After a couple of hours they become "normal" again without any changes made in the site in between.
It looks like GA is unable to count precisely and therefore estimates the "missing" signals in a 5 minute interval.
One explanation could be missing cookie consents. But to me it seems impossible that user's consent behavior changes dramatically in just a couple of hours.
Can anybody explain this behavior? May there be any external factors which I oversee?
EDIT Here you see the regular traffic over a 24 hour period at it appears in the server's access logs: