Credible Websites Only: Top Level Domain Whitelist

Name: Credible Websites Only: Top Level Domain Whitelist
Rating: 5 (3 reviews)
Author: Zachary Darland

This extension is a zero-configuration content blocker. It allows access only to websites with 'credible' top-level domains.

As of May 2026, Credible Websites Only: Top Level Domain Whitelist has 2 users and a 5.00/5 rating from 3 reviews in the Productivity category.

Zachary Darland Productivity

Chrome Web Store ↗.crx

Users0%

Rating0%

5.00

3 reviews

Reviews0%

Version

1.1.1

Manifest V3

Permissions & access

Permissions: tabsscripting
Host access: <all_urls>

Screenshots

Credible Websites Only: Top Level Domain Whitelist screenshot 1

Credible Websites Only: Top Level Domain Whitelist screenshot 2

Credible Websites Only: Top Level Domain Whitelist screenshot 3

Credible Websites Only: Top Level Domain Whitelist screenshot 4

Credible Websites Only: Top Level Domain Whitelist screenshot 5

About

Intended for use with managed browser environments where this functionality would be desired, like a school.

Allows only access to .com .net .org .gov and .edu websites.

Doesn't restrict access to web resources accessed via IP address.

For forced installations in managed environments using Google Workspace, an exceptions list can be implemented by using the blocked hosts list on the app and extensions page.

Born out of a desire to have a top level domain whitelist, but finding out this was not possible with G-Suite tooling as of authorship.