Yes it is free, but we have also a paid (Pro) version and 7 days free trial for Pro version as well.

We have free version at WordPress plugin directory and one here. Only diiference is that free version from this website can become PRO and one from WP plugin dir can't.

Yes, fairly easy. Just leave it installed for a couple of hours to collect data if you think you are under attack of some sort or for a few days to get an idea of what is going on.

No, it is really lightweight and self-cleaning. It is coded that way to be optimized and fast.

Yes, even if you don't see any attacks or bad bots right away, it doesn't mean they will not come in a day or a month, for example. So, it is better to have it ON and collecting valuable data so you know what is going on and what was happening in the past.

To upgrade the free ShieldUp plugin from the WordPress plugin directory to the Pro version, follow these simple steps:

1. Log in to your WordPress admin dashboard.
2. In ShieldUp "Settings", set "Delete all data/tables when uninstalling plugin" to No.
3. Navigate to the "Plugins" section and deactivate and DELETE the free ShieldUp plugin.
4. Download the Pro version plugin file from this website to your computer.
5. Click on "Add New" and then "Upload Plugin".
6. Choose the downloaded ShieldUp Pro plugin file and click "Install Now".
7. Once installed, activate the ShieldUp Pro plugin.
8. Then you can proceed to setup ShieldUp license key and CloudFlare credentials.

That's it! You've successfully upgraded your ShieldUp plugin to the Pro version. Enjoy the enhanced features and benefits for improved website security.