Blocked clicks are clicks that matched blocked traffic rule or block pattern and were prevented from counting towards the Views and Clicks numbers in CPV Lab Pro.
Usually you will only need to check the most recent blocked clicks and not blocked clicks from many months ago.
There is an option to automatically clean the blocked clicks by removing records older than a specific number of days (the default value is 30 days).
You can configure the number of days to keep blocked clicks in the database from the Settings page, like in the image below where it is set to 30 days:
In order to have the blocked clicks cleanup working without any human interaction, you need to have setup at least one of the following 2 CRON jobs:
Wurfl Cron job
Campaigns Cron job
It doesn’t matter which Cron job is enabled, it can be one or both.