Software House in Islamabad Pakistan With Best Software Team

In today's age with the rising competition and foundation of new companies, it wasn’t easy for GrithX to secure its place but we took this challenge and turned it into a reality. Today with the efforts and dedication of our team and use of the latest technology trends.

What is web scraping for?

Its use is very clear: we can take advantage of the web scraping to get industrial amounts of information (Big data) without typing a single word. Through search algorithms, we can track hundreds of websites to extract only the information we need.

For this it will be very useful to master regex (regular expression) to delimit the searches or make them more precise and that the filtering of the information is better.

Some examples for which we will need the web scraping:

For content marketing: we can design a robot that makes a 'scrape' of specific data on a website and we can use it to generate our own content. Example: scrape the statistical data on the official website of a football league to generate our own database.

To gain visibility in social networks: we can use the data of a scrape to interact through a robot with users in social networks. Example: create an Instagram bot that selects the links of each photo and then schedule a comment on each post.

To control the image and visibility of our brand on the internet: through a scrape we can automate the position by which several articles on our website are positioned on Google or, for example, control the presence of our brand name in certain forums. Example: track the position in Google of all the entries in our blog.

How does a web scraping work?

Let's put a basic example of how a web scraper works. Imagine that we are interested in extracting the title of 400 pages that have the same format and are located within the same site. In each of the 400 pages, the title is within a selector <h1>that in turn is within one <div>with the class .header.

What our web scraper will do is detect that selector h1that is inside the header class (.header h1)and extract that information on each of these 400 pages. Then we can obtain all this information through the export of data in formats such as a listing in .jsonor a file .csv.

What knowledge do you have to have to be a good web scraper?

Web scraping is a discipline that must combine two very different aspects of web knowledge, both essential to have a versatile profile on the web. On the one hand, we must master the visualization of data at the conceptual level and on the other, we must have the necessary technical knowledge to be able to accurately extract the data with specialized tools.

After all, this will be summed up in knowing how to manage large amounts of data (big data). We must be minimally familiar with the visualization of large amounts of data in order to rank and interpret the data we extract from a website. And not only to extract the data but also when considering the extraction strategy we must know what the data that we are going to extract will be in order to give them an informative sense for the user.

There are 3 key points that we must master to be good web scrapers:

1. Knowledge of web layout. Web scrapers work by selecting Html selectors and for this, we will need to have four basic knowledge of web architecture.

2. Know how to use software to visualize data such as a Google spreadsheet processor, known as Google Spreadsheets, or a basic text editor such as Sublime.

3. Have knowledge of regex. Having minimal knowledge of regex (also called regular expression) will make our work much easier when working with large amounts of data since it can save us thousands of hours of laborious work when correcting or debugging data before importing them to the desired platform.

Mobile App Development Services

Grithx is the best Mobile app development services company in Islamabad for all platforms. We develop both native and hybrid mobile applications and use SAAS to make these apps available to users. Our team consists of highly capable and expert members for cross-platform app development.