Home » Semrush SEO Toolkit Course » Look at the image below. Where should you click to learn about toxic markers of the first backlink in the list? Look at the image below. Where should you click to learn about toxic markers of the first backlink in the list? by Editorial Staff Advertisement 15shares Facebook LinkedIn Pinterest Twitter Email 2 1 3 4 Join our listSubscribe to our mailing list and get interesting stuff and updates to your email inbox. Thank you for subscribing.Something went wrong.We respect your privacy and take protecting it seriously