I can recommend a tool that I use myself https://senlix.com/ With it, you can perform the following types of checks:
- site traffic;
- check the speed of the site;
- error detection;
- parameters of the CEO;
- analysis and optimization of the site.
All of these features are free.
If you need a tool to track the site and get statistics, then I can offer this option host-tracker.com/InstantCheck/Create Here, 30 days of free use, you get free monitoring 24/7 and detailed statistics.