SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Linkody - Save time and money by managing your SEO linkbuilding with Linkody.
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
Backlinks by Neil Patel - A backlinks research tool for competitive intelligence
Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
LinkMiner - Find competitors' backlinks you can replicate easily. LinkMiner is an easy-to-use backlink checker tool focusing on backlinks that matter.