Free website tech stack, SEO, accessibility, and security checker.
Enter a URL and get a shareable report showing what the site is built with, what quality issues exist, and what to fix first.
One scanner engine, multiple high-intent tool entrances.
Each tool page starts with the same URL input and resolves into a full Themerella report.
Free Website Tech Stack Checker
Enter any URL to detect CMS, frontend framework, hosting/CDN, analytics, WordPress theme/plugin signals, payment tools, and evidence.
ToolFree Website Quality Checker
Scan a website for technology, SEO, performance signals, accessibility basics, security headers, and a prioritized fix list.
ToolFree WordPress Theme Detector
Detect whether a site uses WordPress, identify theme and plugin asset signals, and find legacy ThemeRella/Boo traces.
ToolFree SEO Checker
Check title, meta description, canonical, robots, sitemap, headings, Open Graph, links, schema, and indexability issues.
ToolFree Security Headers Checker
Check HTTPS, HSTS, CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy, cookie flags, and server header signals.
Detection with evidence, risk, and next actions.
The report does not only show logos. Every technology includes a category, confidence level, and public evidence. Every issue turns into a developer-ready fix task.
- Detected: WordPress · Cloudflare · GA4 · WooCommerce
- Top issue: Missing Content-Security-Policy header
- Action: Copy fix list · Save PDF · Monitor later