A customer of mine complaines that she has fallen down on her Alexa ranking. On 01/05/18 she was on rank 36.699 (approximately).
On 01/08/18 she was on a one >70.000 !
This is really weird. On 01/05/18 (during the night) there was heavy load (load average over 30). So I blocked 2-3 IPs. (but I am not aware of blocking Alexa spiders).
Any ideas what could have happened ?