Page size checker

Measure the total download size of a page: HTML, CSS, JavaScript and images.

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Page size checker

What is the page size checker?

The page size checker downloads a page with its stylesheets, scripts, images and fonts, and adds up their size. See the weight of each type, the number of requests and the largest files, so you know exactly what to optimize.

Heavy pages load slowly, especially on mobile networks, and cost visitors data. Images and JavaScript are usually the biggest part: compress, resize and lazy-load images, and remove the scripts you don't need.

How to use the page size checker

  1. 1Enter the URL of the page.
  2. 2Press Check.
  3. 3Start with the largest files in the list.

Features

Total weight

HTML, CSS, JavaScript, images, fonts and frames.

Breakdown

Size and share of each file type.

Largest files

The 20 heaviest resources of the page.

Compression

Checks that the HTML is gzip or Brotli compressed.

Frequently asked questions

What is a good page size?

Under about 2 MB is a good target; the median web page is around 2.5 MB on mobile.

Why is my page so heavy?

Usually large images, video, web fonts and third-party scripts such as chat widgets and trackers.

Are the sizes compressed?

No, they're the uncompressed sizes. Text files are usually 3–5 times smaller over the network with gzip or Brotli.