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Asked: 2026-05-13T17:00:26+00:00

My question is about verification more than anything else. What can be used to

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My question is about verification more than anything else. What can be used to determine what is unique in an HTML document? (The document can have a degree of being dynamic.)

What is able to be used, or generated to recognize that a page is the correct page to an accuracy of say 99%, taking into consideration you can store a “fingerprint” of sorts of the page you are verifying?

For clarity, this is an added extra to encryption/https etc. This page can and will change with dynamic content according to specific users, however so can the fingerprint, but a single fingerprint cannot 100% match 100% of users due to the nature of dynamic content. Therefore a hash cannot work here, at least not in a simplistic form.

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1 Answer

  1. Editorial Team

    A unique fingerprint of a HTML page is easy to calculate. Build a hash from the following:

    • protocol: http or https
    • URL: domain + uri
    • Query_string
    • the exact page’s contents down to a byte

    Optionally some headers:

    • Server
    • Content-Type this is important
    • Content-encoding this probably too
    • more ideas? Feel free to edit them in.

    this assumes you’re not POSTing any data to pages.

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