How to remove automatic data from websites

2024-09-10 07:40:24

he web scraping It is a powerful technique that allows you to automatically extract data from various online sites. More people and companies are interested in adding this technique to their processes, but they don’t know where to start. If that is your case, the following post will help you. We will teach you a how to extract automatic data from websites quickly, reliably and securely.

What is scratching?

he to scratch It is the process of extracting data and gathering information from various web pages. Thanks to it, companies can track, monitor and record information of interest 24 hours a day.

It can be put to various uses, such as collecting addresses and telephone numbers of contacts from online portals, monitoring real estate market prices to get better prices, viewing and comparing competitors’ prices to set the best possible cost, get ideas for marketing campaigns on social networks. or collect various reviews on specialized websites to find out what users say about us.

How scraping is done

In the past, data extraction was not done automatically. In fact, it was done at the code level and people had to spend hours and hours browsing the data on web pages until they found information they were interested in.

Of course, it was impractical and took too much time. Few people were committed to reliable “data scraping”.

Currently, It is done through automated tools which tracks and copies data into spreadsheets or templates.

Here we bring together the different ways to perform automatic data extraction so you can choose the one that best suits your needs and budget:

Programming languages

Programming software is able to perform data extraction automatically. The best known, for exampleo Java, JavaScript and Pythonhave this capability and can be turned into powerful and reliable tracking tools.

Software for scrap

Although programming languages ​​do a great job, few people and professionals can configure computer tools on scraping machines.

If this is not your case, you can use a program that is specialized to automatically inspect and flow elements of the website.

That is what scraping software is and what it does audit, monitor, track and collect information from websites to support business processes.

There are different programs, but we focus on three: those that process batches, those that are open source programs and cloud-based programs.

Browser extensions

Finally, we pay attention to the extensions or plug-ins, which are added to browsers and function specific data extraction based on patterns. They are free and easy to set up, but they are limited and can be blocked or slowed down by bots or captcha systems.