There are various tools on the internet for testing your Ad Blocker. While these may not be a complete list they're an interesting test tool but also jumping off point for learning about different types of ad injection and networks.
- [https://d3ward.github.io/toolz/adblock](https://d3ward.github.io/toolz/adblock)
- [https://canyoublockit.com/](https://canyoublockit.com/)
- [https://adblock-tester.com/](https://adblock-tester.com/)