Web Scrapper / Parser
Web sites are written using HTML, which means that each web page is a structured document. Sometimes it would be great to obtain some data from them and preserve the structure while we’re at it. Web sites don’t always provide their data in comfortable formats such as CSV or JSON.
This is where web scraping comes in. Web scraping is the practice of using a computer program to sift through a web page and gather the data that you need in a format most useful to you while at the same time preserving the structure of the data.
Web scraping software may access the World Wide Web directly using the Hypertext Transfer Protocol, or through a web browser. A web scraper is an Application Programming Interface (API) to extract data from a web site.
Advantage of Web Scrapper
Web scraping services provide an essential service at a low cost.
Once a web scraping services deploys the proper mechanism to extract data, you are assured that you are not only getting data from a single page but from the entire domain. This means that with just a onetime investment, a lot of data can be collected.
Web scraping technologies need very little to no maintenance over a long period.
The web scraping services are not only fast, they are accurate too. Simple errors in data extraction can cause major mistakes later on.