Is HTML Validator safe?
HTML Validator sends inspected page HTML to validator.w3.org when you request online validation.
When you use the extension's online validation controls, it captures the inspected page's HTML and submits it to W3C's validator service. The submitted data is the page DOM content packaged as form data for validation at validator.w3.org.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 1.0.0.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Read and change your data on every site you visit
<all_urls>
Store data in your browser
storage
Act on the current tab, but only after you click the extension
activeTab
Write to your clipboard
clipboardWrite
See every page you navigate to, as you navigate to it
webNavigation
Run its own code inside the pages you visit
scripting
Where it sends data
Destinations our analysis observed HTML Validator contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- validator.w3.org
HTML Validator sends data to validator.w3.org. 3 other extensions we have analysed send data here.