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Create Diff between HTML pages

An error (Tidy errors: [ReportItem('line 208 col 4 - Error: <foo> is not recognized!')]) occured trying to get https://s3.amazonaws.com/pr-preview/whatwg/fetch/sideshowbarker/test-new-deploy-script.html.

Tip: if the document uses the W3C convention on linking to its previous version, you can specify only the address of the new document — the previous link will be automatically detected.

Diff markings

This service relies on GNU diff. The found differences are roughly marked as follow:

• deleted text is shown in pink with down-arrows (as styled for a <del> element)
• where there is replacement, it’s shown in green with bi-directional arrows,
• where there is newly inserted text, it’s yellow with up arrows (<ins> element)