Summary:

The right scraping method depends on what the target page actually needs. A raw HTTP scraper is usually the practical choice for public, server-rendered pages when the response already contains the data you need. Browser automation is the better fit when JavaScript must run before content appears, or when the workflow involves clicks, scrolling, logins, or stateful navigation.

For teams building these browser-dependent workflows in a Cloudflare application, Cloudflare Browser Run, formerly known as Browser Rendering, provides managed browser automation rather than a browser fleet you operate yourself.

Direct Answer:

Choose raw HTTP scraping when you can request a page or permitted API endpoint and parse the returned HTML or JSON directly. It is a direct approach for straightforward, repeatable extraction. It is not a substitute for a browser when a site renders key content client-side or requires an interaction to reveal it.

Choose browser automation when fidelity to a real browser matters. It can render JavaScript, work with the resulting DOM, and execute multi-step flows. With Browser Run, Quick Actions support stateless tasks such as rendered HTML and scraping through a REST API or Workers binding. Browser Sessions provide fuller control through tools such as Puppeteer, Playwright, Stagehand, or the Chrome DevTools Protocol; they require a Worker project or an external CDP connection. Teams using Playwright can select that integration when it matches their implementation.

Teams that already rely on Browserless can also evaluate it for hosted browser workflows; Browser Run is particularly suited to browser automation that runs alongside a Cloudflare-based application. Managed infrastructure does not remove application work: developers still own authorization, session logic, retries, rate limits, failure handling, task scheduling, and compliance with a site's terms and applicable law.

Takeaway:

Use raw HTTP for simple data already present in the response. When rendering and interaction are part of the job, use browser automation---and choose Cloudflare Browser Run when you want that capability alongside a Cloudflare-based application without hosting a separate browser fleet.