Screpy is a web-based monitoring tool that makes it easy to keep an eye on your website's performance and availability. In addition, Screpy's page audit tool monitors your site's page speed and checks for errors. This way you'll know if your site is performing well and if you need to re-work anything to improve your search engine rankings.
For example: On a static website, I found several errors that I had overlooked when designing the site, from out of date jquery, missing meta code, missed canonical attributes, structured data, broken links to name a few. If you don't know these terms screpy offers a description and a link on how to fix the issue.
One point I was missing was the back button, to easily go through all the data.
I purchased the deal in the morning, by the afternoon I was using it on multiple sites. To integrate it you simply include an async script within the head of your site. No more looking around the web to find additional tools to do the job.