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In the browser settings, select "Open Browser Settings" and then, finding the "Advanced" button, go to the "System" section. Click on the button "Open proxy server settings for computer" and in the section "Manual proxy settings" move the slider to the position "On". Now enter in the appropriate fields the IP address, proxy, port and click "Save".
If you plan to use a proxy every day, it is recommended to pay attention to paid services. There, the connection is as reliable as possible, with no bandwidth limitations. However, the performance of numerous free proxies is not guaranteed.
Scraping a large number of web pages using JavaScript typically involves the use of a headless browser or a scraping library. Puppeteer is a popular headless browser library for Node.js that allows you to automate browser actions, including web scraping.
Here's a basic example using Puppeteer:
Install Puppeteer:
npm install puppeteer
Create a JavaScript script for web scraping:
const puppeteer = require('puppeteer');
async function scrapeWebPages() {
const browser = await puppeteer.launch();
const page = await browser.newPage();
// Array of URLs to scrape
const urls = ['https://example.com/page1', 'https://example.com/page2', /* add more URLs */];
for (const url of urls) {
await page.goto(url, { waitUntil: 'domcontentloaded' });
// Perform scraping actions here
const title = await page.title();
console.log(`Title of ${url}: ${title}`);
// You can extract other information as needed
// Add a delay to avoid being blocked (customize the delay based on your needs)
await page.waitForTimeout(1000);
}
await browser.close();
}
scrapeWebPages();
Run the script:
node your-script.js
In this example:
urls
array contains the list of web pages to scrape. You can extend this array with the URLs you need.page.title()
.Keep in mind the following:
The easiest way is to try to open any site or application that requires an Internet connection. If the data download goes well, then the VPN is working properly. If there is a "No connection" error, then the VPN is not working properly for some reason.
An "open" proxy means one that is publicly available. It can be used by many network users at the same time. But because of this its bandwidth is also quite low, because the server simultaneously handles all requests through a single port.
What else…