The website Gzip compression checker provides website Gzip compression checks, compression ratio detection, download speed after compression, page size after compression, original file size and a before/after gzip comparison.
When Gzip is enabled, output sent to the browser is compressed before the data is displayed, reducing the amount of data transferred over the network, speeding up browsing and saving bandwidth.
This tool belongs to the “Webmaster tools” category.
Your input is processed locally in the browser whenever possible. We do not store it.
Most checks rely on public fetching, and the target may sit behind a CDN. Re-test later or compare nodes.
It comes from a public endpoint and can lag. The MIIT record is authoritative.
Ship multiple sizes (or a PNG) and declare link rel="icon"; browser caching also delays the new icon.