T Themerella
Comparison

Wappalyzer Alternative for Free Website Reports

Themerella focuses on free shareable web reports that combine tech stack evidence with SEO, accessibility, security, performance signals, and fix tasks.

Safe public URL scan. Results include technology evidence, SEO checks, security headers, accessibility basics, and a developer fix list.

Use caseThemerellaOther tech lookup tools
Technology detectionYes, with evidence and confidenceUsually yes
SEO/security/a11y fixesIncluded in one reportOften separate or limited
Shareable reportCore workflowVaries
Free-first SEO tool pagesPrimary strategyVaries