SEMRush

vs

SEOptimer

The Swiss Army knife of content marketing, Ahrefs is a set of SEO tools packaged as a service. With Ahrefs, content marketers SEO's can get detail search engine data about their domains, which can be used to further improve the visibility and reach online. The toolset is powered by AhrefsBot, a web crawler that crawls webpages and provide data to analyze both organic and paid results in search engines. Ahrefs is loved by content marketers across the globe, that use the tool for competitor analysis, backlink checking, SERP monitoring and much more.

With SERPStat SEO's can monitor and improved search engines rankings. SERPStat is a web-based SEO service provider that includes all tools necessary to do keyword research, backlink analysis, domain analysis and much more.

Ubersuggest is freemium SEO tool that helps search engine marketers to generate keyword ideas for their content marketing strategy and production. With Ubersuggest freemium keyword tool, it is possible to generate a limited number of suggestions for free and take content creation to the next level while increasing website's chances of ranking against the competition. Ubersuggest is released by the popular SEO guru Neil Patel, and was previously provided as a 100% free SEO software.

SEO Tester Online is a web-based tool that lets you get a better understanding how search engines view your website. The tools gives you quick tips that you can act on to improve your over all search engine ranking.

The Swiss Army knife of content marketing, Ahrefs is a set of SEO tools packaged as a service. With Ahrefs, content marketers SEO's can get detail search engine data about their domains, which can be used to further improve the visibility and reach online. The toolset is powered by AhrefsBot, a web crawler that crawls webpages and provide data to analyze both organic and paid results in search engines. Ahrefs is loved by content marketers across the globe, that use the tool for competitor analysis, backlink checking, SERP monitoring and much more.

SEO Site Checkup is a tool that can help you identify common technical SEO problems surrounding your website. When you test your site with SEO Site Checkup, you get awarded a score and a list of information on things to improve. The SEO Site Checkup includes Meta Title Test, Meta Description Test, Google Search Results Preview Test, Most Common Keywords Test, Keywords Usage Test, Keywords Cloud Test, Related Keywords Test, Competitor Domains Test, Heading Tags Test, Robots.txt Test, Sitemap Test, Broken Links Test, SEO Friendly URL Test, Image Alt Test, Inline CSS Test, Deprecated HTML Tags Test, Google Analytics Test, Favicon Test, Backlinks Test, JS Error Test and a Social Media Test. All of which can help you improve your overall search ranking.