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
Words cannot begin to express my gratitude that @littlewardenapp exists and saves my client sites from major incidents again and again. Worth every damn penny ten times over and then some.
May 19, 2018
Little Warden is one of those tools that, once you start using it, you'll wonder how you ever coped without it. Perfect for agencies handling many accounts.
