Is Html Validator safe?
Html Validator sends inspected page HTML to W3C's online validator when the user runs online validation.
When the user opens the extension in DevTools and chooses online validation, Html Validator reads the inspected page's HTML and posts it to W3C's validator service. The request sends the page HTML as a multipart form field named fragment to https://validator.w3.org/nu/ so the service can return validation results.
Who publishes itMarc Gueury - no other listings under this identity, 19 shared hostnames
Marc Gueury - no other listings under this identity, 19 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 19 hostnames
Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.
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 0.9.9.5. 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
Write to your clipboard
clipboardWrite
See every page you navigate to, as you navigate to it
webNavigation
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.