Try Monkey Test It
It can be a pain in the ass going through your site, checking for details like broken links and SEO mistakes. But now you can simply enlist an army of monkeys to help.
Go ahead and unleash this army of monkeys. They will descend upon your site, checking for bugs, broken links, SEO mistakes, and mobile friendliness.
Monkey Test It is free (although they plan to add premium features in the future) and it integrates with the team collaboration platform Slack (https://slack.com/). I’ll be posting a training about Slack in the near future.