Home The Advantages & Disadvantages Of Web Scraping Data

Tuesday30 November 2021

The Advantages & Disadvantages Of Web Scraping Data

Knowledge is power. Information is liberating." To realize access to the best pieces of knowledge, you’re first going to want to collect some data. Web scraping, data mining and web crawling are efficient strategies that let you easily compile and store information from websites on the internet.

In this piece we will examine what's web scraping, the benefits and disadvantages of web scraping and some of the useful use cases for scraping data.

What is web scraping?
Web scraping refers to creating or using a computer software to extract data from total websites or just a few web pages. Also if you carry out web scraping, you'll be able to either download your complete web web page or key features such because the tag or article body content material for additional analysis.


What are the benefits of web scraping for business?
Achieve Automation
Strong web scrapers assist you to automatically extract data from websites, this permits you or your co-workers to save time that will’ve have in any other case been spent on mundane data collection tasks. It additionally means that you could collect data at larger quantity than a single human could ever hope to achieve.

Also it’s possible so that you can create sophisticated web bots to automate online activities with either web scraping software or using a programming language akin to javascript, python, go or php.

Enterprise Intelligence & Insights
Web scraping data from the internet means that you can search for competitor costs, monitor their marketing activity and to swiftly market research your industry online. By downloading, cleaning and analysing data at significant quantity, you’ll be able to build a better picture of your market, your competitor’s activity which in turn will lead to higher enterprise resolution making.

Distinctive and rich datasets
The internet provides you with a rich quantity of textual content, image, video and numerical data and at present comprises at the least 6.05 billion pages. Depending upon what your objective is, you can find relevant websites, setup website crawlers after which make your own custom dataset for analysis.

For instance, let’s fake you’re interested in UK football and need to understand the sports market in depth.

You could setup webscapers to collect the following data:

Video Content: To download all of the football games from YouTube or Facebook.com.
Football Statistics: You possibly can download your desired team’s historical match statistics.
WhoScored – Goal Data.
SoccerStats.
Betting Odds: You would accumulate the betting odds for football matches from bookmaker’s comparable to Bet365 or from player betting exchanges reminiscent of Betfair or Smarkets.
Create applications for tools that don’t have a public developer API
By web scraping data, you will by no means have to depend on the website releasing a public application programming interface (API) to access the data which they show on their webpages. There are a number of benefits to web scraping compared to accessing a public API:

You possibly can access and acquire any data that is available on their website.
You are not limited to a specific number of queries.
You don’t must sign up for an API key or must abide by their rules.
Efficient Data Management
Instead of copying and pasting data from the internet, you possibly can choose what data you'll like to collect from a range of websites, then you can accurately gather it with web scraping. For more advanced web scraping / crawling techniques your data will be stored within a cloud database, and will likely be running on a daily basis.

Storing data with automatic software and programs means that your organization, operations or workers can spend less time copying and pasting information and more time on inventive work.

What are the disadvantages?
You will need to be taught programming, use web scraping software or to pay a developer
If you are looking to collect and organise a vast amount of data from the internet, you will discover that existing web scraping software is limited in functionality. Although the software will be good for extracting several elements from a web web page, as soon as you might want to crawl multiple websites they are less effective.

Therefore you will must either spend money on learning web scraping techniques in a programming language reminiscent of javascript, python, ruby, go or php. Alternatively you'll be able to hire a contract web scraping developer, regardless each of these approaches will add an overhead to your data assortment operations.

Websites regularly change their construction and crawlers require upkeep
As websites usually change their HTML construction, sometimes your crawlers will break. Whether you’re using web scraping software otherwise you’re writing the web scraping code, there is a certain quantity of maintenance that must be repeatedly performed to keep your data collection pipelines clean and operational.

For each website that you write a custom encoding script, adds on a certain quantity of technical debt. If lots of websites that you’re gathering data from instantly determine to redesign their websites, you will have to put money into fixing your crawlers.

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