Use SRI with count.js

For most people gc.zgo.at/count.js should be fine, but there are also stable versions if you want to use subresource integrity (SRI). This will verify the integrity of the script to ensure there are no changes, and browsers will refuse to run it if there are.

You won’t get any updates, with this – the versioned script will always remain the same. Any existing version of count.js is guaranteed to remain compatible, but you may need to update it in the future for new features.

Latest

No changes

v5 (9 June 2025) 

<script data-goatcounter="https://MYCODE.goatcounter.com/count"
        async src="//gc.zgo.at/count.v5.js"
        crossorigin="anonymous"
        integrity="sha384-atnOLvQb9t+jTSipvd75X2yginT4PjVbqDdlJAmxMm+wYElFmeR6EmLP5bYeoRVQ"></script>

  • Use <img>-based fallback if navigator.sendBeacon fails, for example due to Content-Security-Policy errors.

  • Expose window.goatcounter.filter() and window.goatcounter.get_data().

  • No longer check for window.goatcounter.vars and window.counter These were changed a week or so after the initial release over five years ago. AFAIK no one is using them. If you do, then use window.goatcounter (or data-goatcounter-settings) instead of window.goatcounter.vars and data-goatcounter="url" on the script tag instead of window.counter.

v4 (8 Dec 2023) 

<script data-goatcounter="https://MYCODE.goatcounter.com/count"
        async src="//gc.zgo.at/count.v4.js"
        crossorigin="anonymous"
        integrity="sha384-nRw6qfbWyJha9LhsOtSb2YJDyZdKvvCFh0fJYlkquSFjUxp9FVNugbfy8q1jdxI+"></script>
  • Use navigator.sendBeacon when available.

v3 (1 Dec 2021) 

<script data-goatcounter="https://MYCODE.goatcounter.com/count"
        async src="//gc.zgo.at/count.v3.js"
        crossorigin="anonymous"
        integrity="sha384-QGgNMMRFTi8ul5kHJ+vXysPe8gySvSA/Y3rpXZiRLzKPIw8CWY+a3ObKmQsyDr+a"></script>
  • Support start and end in the visitor counter.
  • Update localhost filter to include 0.0.0.0
  • Tabs opened in the background didn’t always get accounted for (see #487 for details).
  • Remove the timeout; this was already increased from 3 to 10 seconds in v2. Tracking will now happen no matter how long it takes for the page to load.

v2 (11 Mar 2021) 

<script data-goatcounter="https://MYCODE.goatcounter.com/count"
        async src="//gc.zgo.at/count.v2.js"
        crossorigin="anonymous"
        integrity="sha384-PeYXrhTyEaBBz91ANMgpSbfN1kjioQNPHNDbMvevUVLJoWrVEjDCpKb71TehNAlj"></script>
  • Allow loading settings from data-goatcounter-settings on the script tag.
  • Increase timeout from 3 seconds to 10 seconds.
  • Add braces around if since some minifiers can’t deal with “dangling else” well (the code is correct, it’s the minifier that’s broken).

v1 (25 Dec 2020) 

<script data-goatcounter="https://MYCODE.goatcounter.com/count"
      async src="//gc.zgo.at/count.v1.js"
      crossorigin="anonymous"
      integrity="sha384-RD/1OXO6tEoPGqxhwMKSsVlE5Y1g/pv/Pf2ZOcsIONjNf1O+HPABMM4MmHd3l5x4"></script>
  • Initial stable version.

Questions or problems?

Feel free to get in touch if you’ve got any questions or having any problems; a lot of times they can be resolved without too much problems.

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