Common HTTP policies

The following policies are commonly used to secure HTTP traffic.

Refer to the HTTP policies page for a comprehensive list of other selectors, operators, and actions.

​​ Block sites

Block attempts to reach sites by hostname or URL paths. Different approaches may be required based on how a site is organized.

​​ Block sites by hostname

Block all subdomains that use a host.

​​ Block sites by URL

Block a section of a site without blocking the entire site. For example, you can block a specific subreddit, such as reddit.com/r/gaming, without blocking reddit.com.

​​ Block content categories

Block content categories which go against your organization’s acceptable use policy.

​​ Block unauthorized applications

To minimize the risk of shadow IT Open external link , some organizations choose to limit their users’ access to certain web-based tools and applications. For example, the following policy blocks AI assistants:

​​ Check user identity

Configure access on a per user or group basis by adding identity-based conditions to your policies.

​​ Skip inspection for groups of applications

Certain client applications, such as Zoom or Apple services, rely on certificate pinning. The TLS inspection performed by Cloudflare Gateway will cause errors when users visit those applications. To avoid this behavior, you must add a Do Not Inspect HTTP policy.

Gateway evaluates Do Not Inspect policies first. We recommend moving your Do Not Inspect policies to the top of the list to reduce confusion.

​​ Check device posture

Require devices to have certain software installed or other configuration attributes. For instructions on setting up a device posture check, refer to Enforce device posture.

​​ Enforce a minimum OS version

Perform an OS version check to ensure users are running at least a minimum version.

​​ Check for a specific file

Perform a file check to ensure users have a certain file on their system.

Since the file path will be different for each operating system, you can configure a file check for each system and use the Or logical operator to only require one of the checks to pass.

​​ Enforce session duration

Require users to re-authenticate after a certain amount of time has elapsed.

​​ Isolate high risk sites in remote browser

If you are using the Browser Isolation add-on, refer to our list of common Isolate policies.

​​ Bypass inspection for self-signed certificates

When accessing origin servers with certificates not signed by a public certificate authority, you must bypass TLS decryption.

​​ Block file types

Block the upload or download of files based on their type.

​​ Block Google services

To enable Gateway inspection for Google Drive traffic, you must add the Cloudflare certificate to Google Drive.

​​ Block Google Drive uploads

Block file uploads to Google Drive.

​​ Block Google Drive downloads

Block file downloads from Google Drive.

​​ Block Gmail downloads

Block file downloads from Gmail.

​​ Isolate ChatGPT

Browser Isolation users can isolate interactions with ChatGPT.

In Configure policy settings, you can customize restrictions for ChatGPT. For example, to prevent your users from inputting sensitive information, you can select Disable copy / paste and Disable file uploads.