Network performance recording

Last updated: Aug 01, 2023

PostHog can capture network requests and their performance that occur during the browser session, so you can see the effect of slow network requests or errors on the user experience.

You can enable network recording from your project settings:

Enable network recording in your PostHog

To remove sensitive information from the URL, these network requests can be modified before being captured like so:

Web

posthog.init('<ph_project_api_key>', {
    session_recording: {
        maskNetworkRequestFn: (request) => {
            // For example: ignoring a request entirely
            if (request.url.includes('example.com')) {
                return null
            }

            // ... or remove the query string from the URL
            request.url = request.url.split('?')[0]
            return request
        }
    }
})

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