🛡️Validate Proxy Enforcement

Using iframes, check if your company proxy is blocking based on intended policy — perfect for testing Zscaler ZIA or Netskope policy.

Validate category-based filtering and explicit proxy policy compliance.

Add Inventory

Type a URL and category above then click to add it to your test inventory. URLs without http:// will get https:// added automatically.
Loads a built-in list of 34 representative Zscaler categories covering everything from Entertainment and Finance to Gambling and Adult content — good for a broad policy check.
Supports two formats:

Simple: Category,URL (header row required)

Zscaler: The official Zscaler URL categories CSV from help.zscaler.com — auto-detected and parsed automatically. Save it locally as targets.csv and import here.
Download examples: ⬇ Quick (15 cats) ⬇ Full (34 cats)

Active Inventory

Downloads your current inventory as a CSV file in the simple format (Category,URL) that can be re-imported later.
Removes all targets from the active inventory. Does not affect the iframe results already generated below.

Filter & Execute

Checks or unchecks all category filters at once.
Opens each selected URL in a sandboxed iframe below. If your proxy blocks a category, the iframe will fail to load or show a block page — confirming your policy is working. OK = loaded, PENDING = still loading.

Live Test Results

Select categories above to initiate testing.