While web crawlers can be useful and even necessary for certain legitimate purposes, their use can also raise significant legal concerns, particularly when it comes to issues of privacy, copyright, and computer fraud. Make sure to use them legally and ethically.
Tired of your web crawlers getting blocked? Try using a free proxy. In this article we explain what proxies are, how to use them, and where to get them.
Looking for some quick code to build your web crawler in PHP? Here's some code we use a lot here at Potent Pages to make our development a lot easier!
In this tutorial, we create a PHP website spider that uses the robots.txt file to know which pages we're allowed to download. We continue from our previous tutorials to create a robust web spider and expand on it to check for download crawling permissions.
Looking to download a site or multiple webpages? Interested in examining all of the titles and descriptions for a site? We created a quick tutorial on building a script to do this in PHP. Learn how to download webpages and follow links to download an entire website.
Looking to automatically download webpages? Here's how to download a page using PHP and cURL.