Before we dive into the technical details, it's important to understand that there are several fundamentally different approaches to collecting data from websites. Each has its own advantages and uses:
HTML parsing
Is the most common method. With this approach, the finland telegram number database application works directly with the HTML code of the page, using special libraries such as BeautifulSoup or lxml. This method is especially effective for working with static websites, where the content does not change dynamically after the page is loaded.
API parsing
Often used when it comes to a more professional approach. This is the most stable and legal method of obtaining data, since the sites themselves provide a special interface for accessing the information. However, it is important to consider that most APIs have a limit on the number of requests.
DOM parsing
Used for modern dynamic sites that actively use JavaScript. This method involves analyzing the document structure after all scripts have been fully loaded and executed. Tools such as Selenium or Puppeteer are used for this.