Best SEO Software in the UK

CSS HTML Validator for Windows, Mac, and Linux is a fast, powerful, highly user configurable, and easy to use web development tool that checks HTML, CSS, SEO, spelling, accessibility (including WCAG 2.0/2.1/2.2), PHP, XHTML, JavaScript, htmx, and links. CSS HTML Validator includes batch processing (in the Pro edition), integrated HTML/CSS editing, and much more. It works offline so it's super-fast and your privacy is protected because your documents are not uploaded to a server for checking. CSS HTML Validator Pro has superior customization features so you can configure the validation to your liking. You can even add your own validator messages, recognize your own HTML elements and attributes, and much more. Try CSS HTML Validator Pro for Windows free for 200 validations or 30 days, whichever comes first. A FREE limited version of htmlval for Mac and Linux is also available.

Rank Tracker is a powerful rank checking platform that allows users to research keyword ideas, analyze SERP competition, and set up unlimited rank tracking and reporting. Rank Tracker is the only local rank tracking software that accurately checks positions for the exact location of your choice: country, state, city, or even an exact street address. Like everything else in this keyword position tracker, these locations are — you guessed it — unlimited. With the tool's 400+ localized search engines, you'll get the most accurate keyword rank checking you ever need.