It's a Chrome extension. It probably spies on every website you visit, and SEO is bullshit anyway.<p><a href="https://web.archive.org/web/20200407001323/https://www.superhighway98.com/seo" rel="nofollow">https://web.archive.org/web/20200407001323/https://www.super...</a><p><a href="https://web.archive.org/web/20210105030339/https://www.johnwdefeo.com/articles/seo-is-ruining-the-internet" rel="nofollow">https://web.archive.org/web/20210105030339/https://www.johnw...</a>