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Page size checker
Enter a URL. The tool fetches the page and reports the raw HTML size, the content-length and encoding headers, and the final URL after redirects.
Why page size matters
HTML size is a floor for load time, and load time feeds Core Web Vitals and engagement. A 50KB HTML document is usually fine; a 3MB one is usually the symptom of inline bloat, render-blocking markup or a CMS dumping everything into the page.
What the numbers mean
- Raw size: the served HTML bytes, uncompressed.
- Content-Encoding: gzip or brotli means the wire transfer is much smaller.
- Final URL: after redirects, which is the page you are really measuring.