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How to Run Multi-instance Google Maps Plugin

The most effective way to dramatically boost Google Maps scraping speed is running multiple scrape tasks in parallel. This tutorial walks Windows users through achieving that with multiple browser instances.

Core Idea

Duplicate the browser's portable version folder to create multiple isolated browser environments. Install and run the Google Maps plugin separately in each — for fully independent, parallel scraping.

Product page: Google Maps Scraper · Overview

1. Preparation · Download the Portable Browser​

We recommend the 64-bit portable build of CentBrowser — green, no install needed, perfect for multi-instance use.

1. Download and Unzip​

  • Step 1 — Download the 64-bit portable zip.
  • Step 2 — Double-click the .zip and extract into its own folder, e.g., a new baifen folder on the desktop.

Unzipping the CentBrowser portable build into a baifen folder on the desktop — folder contains chrome.exe and other portable files

2. Launch and Create a Shortcut​

  • Step 1 — Enter the unzipped baifen folder and double-click chrome.exe to launch the browser.
  • Step 2 — Right-click chrome.exe → Send to → Desktop (create shortcut) for easy access later.

Windows File Explorer — right-click chrome.exe, choose Send to → Desktop, secondary menu showing

2. Core Step · Duplicate Browser Instances​

Create multiple isolated browser instances by duplicating the folder.

  • Step 1 — Copy the baifen folder you created earlier — one copy per instance you want.
  • Step 2 — Rename the copies to keep them distinct, e.g., baifen-1 / baifen-2 / baifen-3 / baifen-4.

Windows File Explorer — baifen folder copied 4 times, renamed baifen-1 through baifen-4

  • Step 3 — Create a desktop shortcut for the chrome.exe in each new folder and rename for easy identification.

Windows desktop — 4 browser instance shortcuts, each mapped to a separate baifen folder

3. Configure and Run · Install the Plugin and Scrape​

1. Install the Plugin in Each Browser​

2. Run Scrape Tasks in Parallel​

  • Open all the browsers that now have the plugin installed.
  • In each browser's plugin, set different keywords or regions and start scraping at the same time — each runs independently and they don't interfere.
  • Plugin usage details: Google Maps Plugin Guide.

Windows desktop — 4 browser windows running different scrape tasks simultaneously, no interference

Run interfaces of the 4 plugin instances — each showing independent scrape progress, keyword, and region

Important Performance Note

For the best scraping speed, do not minimize any browser window while running. Browsers throttle background task performance when minimized, which seriously hurts efficiency.

FAQ​

Q1 · Why use a portable browser for multi-instance?​

A portable browser's data is fully isolated — each folder is an independent environment with its own cache / cookies / plugin data — so multi-instances don't conflict or cross-contaminate.

Q2 · How many instances can I run?​

Theoretically no limit — it comes down to your machine's hardware (mostly CPU and RAM). Based on your specs, start with 2-4 instances and monitor resource usage.

Q3 · Will multi-instance data get mixed up?​

No. Data scraped by each plugin is independently tagged. Through Cloud Sync, it all flows into your account where you view and manage everything centrally in the cloud.

Practical Tips​

    1. Start small — On your first try, start with 2 instances. Once your machine runs smoothly, scale up.
    1. Differentiate tasks — Assign each browser instance a different keyword or geographic region to maximize scraping breadth and efficiency.
    1. Check in periodically — For long unattended scrape runs, check each window now and then to make sure there's no CAPTCHA or unexpected interruption needing attention.

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