This video explains how to identify toxic or blacklisted domains before buying backlinks. The conversation features Kasra Dash, Karl Hudson and James Dooley discussing why many links still harm rankings, how Google handles zero value domains and how the new free Blacklist Checker helps detect unsafe sites. The video shows how agencies and website owners can avoid wasting money on harmful links, prevent penalties and improve backlink safety through proactive checks and disavows. The impact of toxic links on rankings is highlighted clearly because the tool exposes guest post farms, PBNs and spam networks that look strong on metrics but deliver no value.