Web scraping a web page involves fetching it and extracting from it. Fetching is the downloading of a page (which a browser does when a user views a page). Therefore, web crawling is a main component of web scraping, to fetch pages for later processing. Once fetched, then extraction can take place. Web scraping is the process of collecting and parsing raw data from the Web, and the Python community has come up with some pretty powerful web scraping tools. The Internet hosts perhaps the greatest source of information—and misinformation—on the planet.
- Using jsoup for web scraping. Jsoup is a popular Java-based HTML parser for manipulating and scraping data from web pages. The library is designed to work with real-world HTML, while implementing the best of HTML5 DOM (Document Object Model) methods and CSS selectors.
- Malicious web scraping examples Web scraping is considered malicious when data is extracted without the permission of website owners. The two most common use cases are price scraping and content theft.
Web scraping can be incredibly powerful. So much so, that many businesses use web scraping technologies to fuel their operations.
After all, having access to the right data can provide powerful insights about an industry or competitor. Dexcom port devices driver download.
Today, we will review some common uses of web scraping by companies in many different sectors.
What is Web Scraping?
If you are wondering what web scraping is in the first place, let us break it down.
Web scraping refers to the extraction of web data on to a format that is more useful for the user. For example, you might scrape product information from an ecommerce website onto an excel spreadsheet.
Although web scraping can be done manually, in most cases, you might be better off using an automated tool. After all, these are usually faster and less expensive than scraping data manually.
Want to learn more about web scraping? Learn more by reading our in-depth guide on web scraping.
Web Scraping Examples: Business Uses
Real Estate Listing Scraping
Many real estate agents use web scraping to populate their database of available properties for sale or for rent.
For example, a real estate agency will scrape MLS listings to build and API that directly populate this information onto their website. This way, they get to act as the agent for the property when someone finds this listing on their site.
Most listings that you will find on a Real Estate website are automatically generated by an API.
Industry Statistics and Insights
Many companies use web scraping to build massive databases and draw industry-specific insights from these. These companies can then sell access to these insights to companies in said industries.
For example, a company might scrape and analyze tons of data about oil prices, exports and imports in order to sell their insights to oil companies across the world.
A notable example of the value that can be unlocked from this use is the one of HiQ Labs.
Web Scraping Examples Python
This company was caught scraping public data from LinkedIn, which resulted in them getting banned from scraping LinkedIn data. However, the courts have upheld HiQ’s argument that scraping publicly available data is not illegal.
Comparison Shopping Sites
There are several websites and applications that can help you to easily compare pricing between several retailers for the same product.
One way that these websites work is by using web scrapers to scrape product data and pricing from each retailer on a daily basis. This way, they can provide their users with the comparison data they need. Download hsdpa port devices driver.
Lead Generation
One incredibly popular use of web scraping is lead generation. This use is so popular in fact, that we have written an entire guide on using web scraping for lead generation.
In short, web scraping is used by many companies to collect contact information about potential customers or clients. This is incredibly common in the business-to-business space, where potential customers will post their business information publicly online.
Website Transitions
Sometimes, companies with incredibly large websites are tasked with having to transition their site to a more modern environment. Think of large and outdated websites that hold a lot of critical information (such as most government websites).
Web Scraping Example Python
In these cases, companies might want to use a web scraper to quickly and easily export data from their legacy website on to their new platform.
Social Media Sentiment Analysis
We don’t mean to freak you out, but if you ever tweeted during a Game of Thrones episodes, your tweet might have been scraped and analyzed by HBO to understand how their show is being received on social media.
Many different social media platforms can be scraped for further sentiment analysis about specific topics. Not only is this useful for many companies, but also for individuals such as politicians. They can use this type of analysis to understand the perception of their campaigns on social media.
Closing Thoughts
As you might already realize, there are many ways in which web scraping can be used. In fact, the uses we have highlighted are just the tip of the iceberg.
If you’re wondering what’s the best web scraper four your next project, read our guide on what makes the best web scraper.
Web Scraping Examples
What will you use web scraping for?
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