I'm sharing a list of tools that run in your browser called bookmarklets or favelets that run entirely in your web browser to perform various website/seo/promotion tasks. These are little scripts that are run in your browser with a single click and don't require installation/extensions/addons/software - completely safe and free to use.
The list has all sorts of tools tools including
- Auditing your site and finding SEO, code and content mistakes
- Finding broken links on your page
- Auditing your site's page load speed and mobile issues and making recommendations to improve it
- Pinging your content to get it indexed faster
- Finding keyword density on pages
- Checking for duplicate content and plagarism of your content or against your content
- Finding social media mentions of a page quickly
- Identifying which links on a page are no follow
- And lots more...
All of this runs in your browser, so there's no tracking, no viruses, no bs.
20+ Free SEO Browser-based tools
Make sure you use a modern browser like Firefox or Chrome as older IE may not work so well with these.