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Page Size Checker

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SEO & Web

Page Size Checker

Check the full page size including all resources.

Workspace

Run the tool here

Browser utility

Output

Run the workspace to see the response here.

How to use

Enter the page URL.
Run the check and note the HTML size and asset count.
Compress the largest assets first — images usually win.

About this tool

Measure a page's HTML size, request count and transfer weight so you can spot what is slowing it down.

Page Size Checker is part of the TmpMailer SEO & Web set — free browser utilities that open instantly, need no account, and pair well with a temporary-email workflow when you just need a quick result.

Common use cases

Checking whether a CMS page has grown too heavy.
Finding uncompressed images after a content migration.
Comparing a page before and after a performance change.

Common questions

Does page size include images?

The headline size is the HTML document. Linked assets are counted separately, and the full transfer depends on what the browser loads.

What is a reasonable page weight?

Aim for a few hundred kilobytes of critical HTML and CSS, with images lazy-loaded. Heavy landing pages should be justified by content.

Why is the reported size different from DevTools?

Compression, caching and third-party requests change the total. This check measures the server response, not the full browser waterfall.

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