Am starting a simple thread to collect all the FREE SEO Tools that are useful and here's my first one. Yoast OnPage.org read more details at https://en.onpage.org/ FREE service to analyse errors on your page does the following: 1 project 100 URLs 1 user 1 crawl per month 5 keywords no exports no support Like the way they pitch their pricing - "What would it cost you if you had a broken website?" They don't talk about discounts and being the cheapest but instead they focus on value. What would it cost you? more details on pricing at https://en.onpage.org/product/pricing/ NOTE: I do not get paid and am not an affiliate and am in no way linked to Yoast website. I do not speak for Yoast and am not promoting the site except for the value they provide to users.