Search engine optimization software can help your website get more traffic and rank higher for targeted keywords. You can use search engine optimization software to detect broken links, improve website performance and increase traffic. Some software is expensive, but others are free. While a free SEO tool can help with only a portion of your SEO strategy it is worth looking into the more expensive tools. Some of the best SEO tools for small businesses include Google Analytics, Moz Pro, and SEMrush.