Helpie FAQ

  • How does this carbon calculator work?

    Please check the page ‘How does it work?’ Please note that a more accurate calculator, version 3 to be released in the near future (mid 2023). We support our industry peers’ work on researching and developing an up-to-date unified approach.

  • The tests does not work on my website, why?

    Our carbon calculator may not sometimes read certain website addresses.

    Potential reasons are:

    • The full web address is not entered. Please copy and paste full URL from address bar.
    • Very slow websites and tests time out.
    • Routing issues in your DNS settings, so we can’t load the page to test.

    Please check your website’s load times and DNS settings.

  • Are there other carbon calculators for websites?

    Website Carbon at is a tool that is recommended and also We support a collective effort by our industry peers on researching, developing and maintaining an up-to-date standardised approach to calculating a website’s emissions. Website Emissions is a free tool available to the public (an updated version 3 to be released in the near future).

  • Are these test results public?

    Yes, when you test your website using this tool, it generates a public report with the results. We cannot test pages protected by a password or on a local server.

  • Can you remove my test results?

    If you have submitted a test and do not want the results to be made public, or if you accidentally tested a private development website address and need to remove the public results page, please contact us via email and we will remove the record as soon as it is reasonably possible. If you tested a public url, the results won’t be deleted.