Plixu

Plixu is a browser-based audit tool built for people who want a fast, plain-language read on why a page is not ranking. You paste in a URL, and the platform runs an automated analysis that combines classic on-page SEO checks with content-aware suggestions generated by GPT-4. Rather than dumping raw crawl data on you, it focuses on the errors and missed opportunities that are most likely to move rankings.

The audit is deliberately broader than keywords and meta tags. Alongside SEO best-practice checks, Plixu reviews UX and UI design choices, pulls desktop and mobile speed insights, and flags accessibility gaps, so the output doubles as a lightweight usability review. Because it analyses both desktop and mobile views, it catches problems that only show up on smaller screens.

Plixu is positioned as free while the product matures: the FAQ states the team wants feedback rather than payment for now, with a richer paid tier planned later. No account is needed to run an audit, and the site says submitted data is used only to generate the analysis and is not retained. The project is run by a team that has also built an SEO agency practice and a companion Chrome extension, so it reads as the productised front end of real agency experience.