Let me tell you what you already know! Octoparse is a great web scraping tool! But like every great tool, it’s got its limitations. At times, you may wonder if there are any alternatives to Octoparse. We wondered the same and put together this blog to provide you a short list of Octoparse alternatives along with their features and distinguishing factors. Let’s get started!
Question: What is Selenium web scraping?
Answer: A picture is better than 1000 words:
So, you make a program with Python, PHP, JAVA, Ruby and whatever language you use in order to browse(), select(), click(), submit(), save(), etc., target web pages.
The LinkedIn crawl success rate is low; one request that a bot makes might require several retries to be successful. So, here we share the crucial Linkedin scraping guide lines.
- Rate limit
Limit the crawling rate for LinkedIn. The acceptable approximate frequency is: 1 request every second, 60 requests per minute.
- Public pages only
LinkedIn allows for bots only public pages; pages that are private cannot be crawled.
- Online marketplaces
In the marketplaces people offer their products for sale. Similar to garage sales, but online. (eg. eCrater, www.1188.no).
Easy to scrape since they are usually free and do not tend to protect their data.
- Business directories
The usually huge online directories targeted at the general audience. (eg. Yellow Pages). They do protect their data to avoid duplication and loss of audience. See some posts on this.
Recently we encountered a new service that helps users to scrape the modern web 2.0. It’s a simple, comfortable, easy to learn service – https://dataflowkit.com
Let’s first highlight some of its outstanding features:
- Visual online scraper tool: point, click and extract.
- Open-source back-end
- Scrape a website behind a login form
- Web page interactions: Input, Click, Wait, Scroll, etc.
- Proxy support, incl. Geo-target proxying
- Scraper API
- Follow the direction of robots.txt
- Export results to Google drive, DropBox, MS OneDrive.
Our brand new version Octoparse 8 (OP 8) just came out a few weeks ago. To help you get a better understanding of what the differences between OP 8 and 7 are, we have included all the updates in this article.
Which of the following is illegal:
(1) Scrape emails from a site and send one email to each address.
(2) Scrape emails from a website and sell them.
(3) Make a scraping script and sell it without using it.
The web is becoming increasingly difficult to scrape. There are more and more websites using single page application frameworks like Vue.js / Angular.js / React.js and you need to use headless browsers to extract data from those websites.
Using headless Chrome on your local computer is easy. But scaling to dozens of Chrome instances in production is a difficult task. There are many problems, you need powerful servers with plenty of RAM, you’ll get into random crashes, zombie processes…
There are many web data extraction applications and some cloud services available and they vary widely in cost and features. Here weíve summarized them to help you to make your choice. All of these programs and services have been either tested by us or have been in general use for web ripping. We hope these brief overviews and the following reviews will help you to choose a best web scraper for your purposes.