If you're not already an Ahrefs user, I would to encourage you to sign up to a free Ahrefs Webmaster Tools account.
With it, you'll be able monitor your site's health and understand your backlink profile. This a must if you want to keep it clean and spam free and yes, it's all for free! Not to mention that if you sign up for AWT you'll be able to use today's note on your own site!