Little Warden can check up to every hour and give you a history of what changed and when so you can take action.
It’s simple to make mistakes though (linking to the http version on a https website, changing the page URL without changing the canonical or just making a mistake in the editing, we’ve seen it all).
With this check enabled Little Warden assumes that the rel=‘canonical’ should appear and be self referential to the URL checked but if it should be elsewhere, you can easily override and you’ll get a notification if that rel=‘canonical’ ever changes.
If you're not convinced in 30 days, you get your money back
If you work in SEO (particularly if you work on multiple clients), you should really give @littlewardenapp a go. Monitors various technical SEO aspects that you'd much rather not check manually. Only been using it for around a month and already benefited massively.
Aug 3, 2018
Realising you can't live without that one tool, @littlewardenapp making everything simple and efficient, and constantly keeping us up to date with whats happening with our client's websites.
May 3, 2018
