sitelens Website audit tool

Our own open-source website audit: performance, SEO, accessibility and security in a PDF report anyone can understand.

Client: Revize (open-source project)
Industry: Website audit tool
Scope of work: Open-source tool, Product website, PDF report, Website brand book
Technologies: Node.js · Astro · PageSpeed Insights

Open source · MIT

A free tool anyone can use. The code is open under the MIT licence, so every score can be checked and the tool extended.

Challenge
Popular audit tools speak developer – „Largest Contentful Paint exceeds threshold” means little to a business owner. We wanted an audit that tells the owner what to do and the developer where to look.
What we did
We built sitelens: paste an address in the browser or run one command (npx sitelens). It checks performance, SEO, accessibility and security, explains every issue in plain language – what is wrong, why it matters, who fixes it and how much work it takes – and puts it all in a six-page PDF report. It also runs in GitHub Actions and stops a deployment when the score drops below a threshold. Besides the audit, it generates a brand book of any website: colours, fonts and styles in one place.
Outcome
A free tool anyone can use. The code is open under the MIT licence, so every score can be checked and the tool extended.