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This is a proxy tester; it generates iframes and calls the below list of URLs.
The URL list is sourced from "Zscaler URL Categories (07222020.csv)".
When iframes are used, many websites will block the content due to the Same-Origin Policy.
So, if you see a **blank iframe** (with a green border), it means you **reached the site** but the site is blocking cross-origin embedding.
If you see a **website rendered**, it means you were able to **reach the site** and it allows cross-site embedding.
A **red border** (instead of blue/green) indicates your **proxy policy blocked** the connection.
This tool is intended for use by authorized personnel only to test proxy blocking functions.
Caution: Triggering iframes can cause your company's HR and IT department to contact you.
Add URLs to the list. You can change their category directly in the list. Be aware of the Same-Origin Policy: many websites prevent themselves from being embedded.
No webpages displayed yet. Add URLs and click 'Display Selected Webpages'.