What is one method to find broken links on a web page?

• A. Analyze the HTML code manually
• B. Send HTTP requests and check response codes
• C. Use browser developer tools exclusively
• D. Search for links based on regex patterns

Answer: (B)

Sending HTTP requests and checking response codes is a highly effective method for finding broken links on a web page. This involves programmatically requesting the URL of each link found on the page and then examining the HTTP response codes returned by the server. A successful response (typically 200 OK) indicates that the link is working. In contrast, response codes like 404 (Not Found) or 500 (Server Error) signify broken links.

This method allows for automated scanning of numerous links quickly, making it efficient for web developers and testers. While manual analysis of HTML code can help identify links, it is time-consuming and prone to human error. Using browser developer tools can aid in the debugging process, but it relies heavily on user interaction and may not provide a comprehensive overview of all links on a page. Searching for links based on regex patterns can help extract links but does not verify their status, meaning it won't confirm whether they are functional or broken. Thus, sending HTTP requests to check response codes remains the most reliable approach for detecting broken links.