The Ultimate Decision Guide: Scrapy vs. Playwright vs. Selenium vs. Proxies

This guide is your roadmap. It tells you exactly which tool to use by following a step-by-step investigation process. We start with the simplest method and only move to complex tools if necessary.

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Step 1: The "Static" Check (Pure Scrapy)

Goal: Check if the website is simple HTML. This is the fastest and best method.

The Test: Run this command in your terminal:

scrapy fetch --nolog "https://example.com" > output.html

Open output.html in your browser.

Decision:

• ✅ I see the data:

  • Use: Pure Scrapy.

  • Why: It is lightweight, fast, and doesn't need a browser.

  • Example: Wikipedia, News blogs, Craigslist.

• ❌ I see a blank page / "Loading...":

  • Go to Step 2. (The site is Dynamic).

• ❌ I see "Access Denied" / CAPTCHA:

  • Go to Step 4. (The site is Blocking you).

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Step 2: The "Hidden API" Check (Smart Scrapy)

Goal: Check if the data is hidden in a JSON file (common in modern sites).

The Test:

1. Open the website in Chrome.

2. Right-click -> Inspect -> Network tab.

3. Select the Fetch/XHR filter.

4. Refresh the page (or scroll down if it's infinite scroll).

5. Look for requests returning JSON data. Tip: Use Ctrl+F in the Network tab to search for a specific price or title you see on the page.

Decision:

• ✅ I found a JSON file with the data:

  • Use: Scrapy + API Request.

  • Why: It's much faster than loading a browser. You get clean data directly.

  • Example: Crypto prices, Stock markets, E-commerce "Load More" buttons.

• ❌ I found nothing / Data is in complex JS:

  • Go to Step 3.

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Step 3: The "Browser" Check (Playwright vs. Selenium)

Goal: The site uses complex JavaScript (React, Vue, Angular) to build the page. We need a real browser engine.

The Choice: You have two main options here.

Option A: Scrapy + Playwright (Recommended)

• When to use: For 95% of dynamic websites.

• Why: It is faster, more reliable, and handles modern web features better than Selenium.

• Example: Single Page Applications (SPAs), sites with complex rendering.

Option B: Scrapy + Selenium

• When to use:

  1. You are already an expert in Selenium and don't want to learn Playwright.

  2. You need to interact with a very old website that only works on specific older browsers.

• Why: It's the "classic" tool, but generally slower and heavier than Playwright.

Decision:

• ✅ Use Scrapy + Playwright unless you have a specific reason to use Selenium.

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Step 4: The "Anti-Bot" Check (Proxies & Stealth)

Goal: The website knows you are a bot and is blocking you (403 Forbidden, 503 Service Unavailable, CAPTCHA).

The Test: Your scrapy fetch failed with an error code or showed a CAPTCHA.

The Solution Ladder: Climb this ladder until it works.

1. Level 1: User-Agent Rotation

   • Problem: You are identifying as "Scrapy/2.5".

   • Solution: Use scrapy-user-agents to pretend to be Chrome/Firefox.

   • Use Case: Basic blogs, small e-commerce sites.

2. Level 2: Stealth Mode (Browser Fingerprinting)

   • Problem: The site checks your browser internals (e.g., "Is navigator.webdriver true?").

   • Solution: Use Scrapy + Playwright with args=["--disable-blink-features=AutomationControlled"].

   • Use Case: Cloudflare protected sites, sophisticated detection.

3. Level 3: Proxies (IP Blocking)

   • Problem: The site blocked your IP address because you made too many requests.

   • Solution: Use Rotating Proxies (e.g., Bright Data, Smartproxy).

   • Use Case: Amazon, Google, LinkedIn, scraping thousands of pages.

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Real-World Examples: Which Strategy to Choose?

Here are 4 distinct scenarios to help you practice choosing.

Scenario 1: The Tech Blog

• Task: Scrape article titles from a tech news site.

• Test: scrapy fetch shows the titles in the HTML.

• Verdict: Pure Scrapy.

• Why: Simple HTML, no need for overhead.

Scenario 2: The Sneaker Store (Infinite Scroll)

• Task: Scrape prices of sneakers. The page loads more shoes as you scroll.

• Test: scrapy fetch only shows the first 20 shoes.

• Network Check: You find a request to api.store.com/products?page=2.

• Verdict: Scrapy + API.

• Why: Simulating scrolling with a browser is slow and flaky. Calling the API is instant.

Scenario 3: The Interactive Dashboard

• Task: Scrape data from a financial dashboard that requires clicking tabs to reveal charts.

• Test: scrapy fetch shows a blank page. Network tab shows encrypted/complex data streams.

• Verdict: Scrapy + Playwright.

• Why: You need to click buttons (page.click()) and wait for the charts to render (page.wait_for_selector()).

Scenario 4: The Giant (Amazon/Google)

• Task: Scrape product rankings.

• Test: scrapy fetch returns a CAPTCHA or 503 error immediately.

• Verdict: Scrapy + Playwright + Proxies.

• Why:

  • Playwright: To render the page and look like a real browser.

  • Proxies: To rotate IP addresses so they don't ban you after 5 requests.

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Summary Decision Table

Follow this order every time, and you will always build the most efficient scraper possible.