Visual Web Rippe'r Blog

There are numerous web scraper tools available today and deciding which of them is best for your web page scraping activities can be quite a daunting task. The so called high end web scrape tools may cost as much as a hundred thousand dollars but they may end up disappointing you.

The prerequisite for high end web page scraper tools is that they should be able to extract huge amounts of data in whatever format the user needs it; in essence a high degree of scalability and performance. Your web page scraping software should further be able to access websites that are both dynamic and complex in structure.

So far, Visual Web Ripper has displayed outstanding performance having gone further to perform web page scraping even on CAPTCHA protected sites. It even protects the user’s IP address from IP blocking. Many professional web scraper services providers are now opting for Visual Web Ripper as it is affordable yet it outdoes many other web scrape tools in functionality.

Scraping web data from static web sites is quite easy and can be done with most web scraping tools, or even with custom scripts created in scripting languages such as Perl or Python.
Highly dynamic web sites are much more difficult to deal with, and you'll generally need a professional web scraping tool to extract web data from such web sites.

In this article I'll explain how you can extract web data from dynamic web sites using the Visual Web Ripper web scraping tool. Visual Web Ripper is one of the best web scraping tools available and has a very competitive price tag.

First it is important to understand why it is difficult to extract data from dynamic web sites. Dynamic web sites use JavaScript to show and hide content on a web page. It may also modify content or use AJAX to load new content asynchronously from the web server.

Many web scraping tools look only at the static HTML of a web page, and simply ignore all JavaScript and therefore also all dynamic content. Some more advanced web scraping tools may be able to execute JavaScript, but lacks the ability to properly wait for new web content to asynchronously load onto a web page. These tools may let you set fixed time intervals to wait for the dynamic content, but if you set the time interval too low, you may miss data, and if you set the interval too high it will take too long to scrape any decent amount of web data.

Visual Web Ripper provides some excellent tools to scrape dynamic web data. First of all it can execute all JavaScript, but more importantly it has some advanced visual tools you can use to tell Visual Web Ripper how it should wait for dynamic content to load onto a web page. The Visual Web Ripper project designer can automatically monitor dynamic content on a web page and give you an understanding of how a dynamic web page works. This is an essential tool if you want to build high performance data extraction projects targeting dynamic web sites.

Visual Web Ripper has all the advanced tools you need to scrape web data from dynamic web sites, and you may even need to use the build-in scripting engine when targeting some very tricky web sites, but in most cases Visual Web Ripper will do all the work for you, and you don't have to worry if content is loaded dynamically or not.

Web page scraping has become a lot easier with this new web scraping tool, and can now be done by everyone without the need for any programming skills. No more complicated Perl scripts and Regular Expressions that only the most hardcore computer geeks can understand. Now you can simply point and click on content elements on a few web pages and this web scraper will work out the extraction patterns and extract web content across an entire web site.

If you have ever done any web scraping before, you'll know how difficult it is to extract web data from highly dynamic web pages. Most web grabbers will simply fail to extract data from dynamic web pages, but Visual Web Ripper has been specially designed to work well on dynamic web sites. This web grabber will happily extract web content that is loaded dynamically using AJAX and other JavaScript technologies.

While the easy point-and-click approach to web scraping will make the novice users happy, this web scraping tool is also loaded with advanced features that will satisfy even professional web scrapers. In fact, Visual Web Ripper is used by many businesses delivering professional web scraping services.

This web scraper has all the features you would expect from high-end web scraping software, and it delivers all this at a very affordable price. You can extract data from nearly all websites and export extracted web data to a wealth of different formats and databases.

Visual Web Ripper has a build-in scheduler that allows you to keep extracted web data up-to-date right down to the second. You can also use the command-line version to execute data extraction projects from any application. If you have .NET programming skills, you can use the API to build your own custom web page scraper.