What is Web Crawling and How Does It Work?
Today, web crawling (also known as web data extraction, web scraping, or screen scraping) is widely used in a variety of sectors. It is the magic word for ordinary folks with no programming skills before a web crawler tool is released to the public. Its high entry hurdle discourages people from entering Big Data. A web scraping tool is an automated crawling technology that connects everyone to the mysterious world of big data.
The Use of a Web Crawler Is Beneficial!
Copying and pasting is no longer a tedious task.
Excel, HTML, and CSV aren’t the only ways to get well-structured data.
It saves you time and money.
It’s the panacea for marketers, internet retailers, journalists, YouTubers, researchers, and a slew of other professionals who aren’t tech-savvy.
1. Octoparse: a “non-web coder’s crawling tool”
Octoparse is a client-side web crawling application for importing data from the internet into spreadsheets. The software is designed for non-coders, with a simple point-and-click interface.
How can I receive data from the internet?
Scrapers that have been pre-built to scrape data from prominent websites like Amazon, eBay, Twitter, and others (check sample data)
Auto-detection: Enter the destination URL into Octoparse, and the structured data will be automatically detected and scraped for download.
Advanced mode allows savvy users to customise a data scraper that pulls target data from difficult websites.
Data formats include EXCEL, XML, HTML, CSV, and API access to your databases.
Octoparse collects product information, prices, blog content, sales lead contacts, and social media posts, among other things.Cloud extraction on a schedule: Real-time extraction of dynamic data
Cleaning the data: Data cleaning is automated thanks to built-in Regex and XPath setup.
Bypassing the blocking: To get around ReCaptcha and blocking, use cloud services and IP proxy servers.
2. 80legs
80legs is a versatile web crawling tool that may be adapted to meet specific needs. It allows for the retrieval of large amounts of data as well as the immediate download of the data collected.
Feature highlights
Users can develop crawlers, manage data, and more using the API provided by 80legs.
Scraper customization: Users can configure web crawls with custom behaviours using 80legs’ JS-based app framework.
Web scraping requests use an IP server, which is a collection of IP addresses.
3. ParseHub
Parsehub is a web crawler that collects information from webpages using AJAX, JavaScript, cookies, and other methods. Its machine learning technology can read, evaluate, and convert web content into useful information.
Important characteristics
Tableau and Google Sheets are two examples of integrations.
JSON and CSV are two types of data formats.
Mac, Windows, and Linux
4. Visual Scraper
VisualScraper also provides web scraping services, such as data delivery and the creation of software extractors for clients, in addition to the SaaS. Users can schedule projects to run at a specified time or have the sequence repeat every minute, day, week, month, and year with Visual Scraper. It could be used by users to extract news, updates, and forum posts on a regular basis.
Important characteristics
Excel, CSV, MS Access, MySQL, MSSQL, XML, or JSON are some of the data formats available.
The official website appears to be down right now, so this information may be out of current.
5. DYNO MAPPER
DYNO Mapper is an excellent and functional software choice that focuses on sitemap creation (which the website crawler feature uses to determine which pages it’s authorised to see).
The website crawler in DYNO Mapper allows you to enter any site’s URL (Uniform Resource Locator—the website address, such as www.example.com) and automatically discover and construct its site map.
There are three packages available, each with a different number of projects (sites) and crawl limits on the number of pages scanned. The Standard subscription (for $40 per month paid annually) is an excellent fit if you’re only interested in your site and a few competitors. The Organization ($1908 per year) and Enterprise ($4788 per year) packages, on the other hand, are better for higher education and medium to big businesses, particularly those who want to crawl multiple sites and up to 200,000 pages every crawl.
6. SCREAMING FROG SEO SPIDER
Screaming Frog has a number of SEO tools, including the SEO Spider, which is one of the best website crawlers accessible. You’ll be able to quickly identify areas where your site should be improved, such as broken links and the distinction between temporary and permanent redirects.
While the free version is adequate, you’ll want to upgrade to the paid edition to get the most out of the Screaming Frog SEO Spider tool. It costs around $197 per year and includes infinite pages (memory permitting) as well as a slew of features not available in the free edition. Crawl setting, Google Analytics integration, customised data extraction, and free technical assistance are some of these features.
Screaming Frog claims that some of the most well-known websites, including as Apple, Disney, and even Google, use their services. The fact that they’re frequently mentioned in some of the most popular SEO blogs helps to advertise their SEO Spider.
7. DEEPCRAWL
DeepCrawl is a niche website crawler that admits on their homepage that they’re not a “one-size-fits-all” solution. They do, however, provide a variety of solutions that you can use or ignore based on your need. These include crawling your site on a regular basis (which can be automated), recovering from Panda and/or Penguin penalties, and comparing your site to your competitors.
There are five options to choose from, with prices ranging from $864 per year (plus one month free if you choose an annual paying cycle) to $10 992 per year. Their business plan, which includes the most features, is priced individually, and you’ll need to engage with their support team to get a quote.
Overall, the Agency package ($5484 per year) is the most cost-effective option for those who require telephonic support and three training sessions. However, the Consultant plan ($2184 per year) is more than capable of covering the needs of most site owners and includes email support.
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8. APIFIER
Apifier is a programme that extracts the site map and data from websites and converts it into a usable format for you (they claim to do so in a matter of seconds, which is impressive, to say the least).
It’s particularly beneficial for keeping an eye on your competitors and building/reforming your website. Although the software is intended toward developers (it takes some understanding of JavaScript), Apifier Experts are available to help anyone else use the tool. You won’t need to install or download any plugins or tools to use the software because it’s cloud-based; you can work right from your browser.
Developers can sign up for free, but the package does not include all of the essentials. To get the most out of Apifier, go with the Medium Business plan, which costs $1548 per year ($129 per month), although the Extra Small plan, which costs $228 per year, is also highly capable.
9. ONCRAWL
Because Google only understands a piece of your site, OnCrawl allows you to read the entire thing using semantic data algorithms and daily monitoring.
SEO audits are one of the capabilities accessible, and they can help you improve your site’s search engine optimization by identifying what works and what doesn’t. You’ll be able to examine how your SEO and usability effect your traffic in real time (number of visitors). OnCrawl will even track how well Google’s crawler can read your site and will assist you in improving and controlling what gets read and what doesn’t.
OnCrawl’s Starter subscription ($136 per year) comes with a 30-day money-back promise, but it’s so limited that you’ll most likely upgrade to one of the larger packages that don’t have that assurance. Pro will run you back $261 a year (plus two months for free if you sign up for the annual plan), but it will cover almost all of your needs.
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10. SEO CHAT WEBSITE CRAWLER AND XML SITE MAP BUILDER
Starting with the SEO Chat Website Crawler and XML Site Map Builder, we’ll move away from the paid website crawlers and toward the free ones accessible. The online software, also known as SEO Chat’s Ninja Website Crawler Tool, scans your site by mimicking the Google sitemap builder. It also has spell check and can detect page issues like broken links.
It’s really simple to use and combine with SEO Chat’s other free online SEO tools. You can choose to scan up to 100, 500, or 1000 pages from the site after entering the URL (either typing it in or using copy/paste).
There are, of course, some restrictions. If you want the programme to crawl more than 100 pages, you’ll have to register (for free), and you can only do five scans each day.
11. WEBMASTER WORLD WEBSITE CRAWLER TOOL AND GOOGLE SITEMAP BUILDER
Another free online scanner is the Webmaster World Website Crawler Tool and Google Sitemap Builder. It allows you to punch in (or copy/paste) a site URL and choose to explore up to 100, 500, or 1000 pages, and is designed and built in a similar fashion to the SEO Chat Ninja Website Crawler Tool above. Because the two applications were created using nearly identical technology, it’s no surprise that if you want to scan more than 100 pages, you’ll need to create a free account.
Another similarity is that a website crawl can take up to half an hour to finish, but you can get the results by email. You’re still restricted to five scans every day, though.
The Webmaster World tool, on the other hand, outperforms the SEO Chat Ninja in terms of site building skills. You won’t be limited to XML; you’ll be able to use HTML as well. The information is also interactive.
