Sooner or later a new generation of spam protection methods will emerge to block all unwanted site visitors. The recently launched Google No CAPTHCA reCaptcha could just be such a method. This new “behaviour analysis” tool is getting more and more attention both from the site owners and from scraping engines who are trying to break it. Since Google does not reveal any secrets of its operation, we want to share with you the techniques used in this new smart analysis CAPTCHA that determines between bot and human. Let’s look inside. more…
Various topics related to Web Scraper, Web Crawler and Data Processing development
In the age of the modern web there are a lot of data hunters – people who want to take the data that is on your website and re-use it. The reasons someone might want to scrape your site are incredibly varied, but regardless it is important for website owners to know if it is happening. You need to be able to identify any illegal bots and take necessary action to make sure they aren’t bringing down your site. Not all bots are malicious (think search engine bots) so I’ve outlined some criteria for site owners and developers to use to identify if and how their site is being scraped.
Suppose I run a query to import.io API:
$url = "https://query.import.io/store/connector/" . $connectorGuid . "/_query?_user=" . urlencode($userGuid) . "&_apikey=" . urlencode($apiKey);
“HI there can you please tell me that what are connector-guid, user-guid and api key in below given code and how to get them for any website?”
Recently Import.io introduced a new extraction technique called Magic. The Magic scraping method works be attempting to scrape all the information off the page automatically and in one shot. We covered it in another post early last year. When we covered it back then, we noted a few issues:
- The scraper only works on pages with more than one row of data like a search results page, category pages and etc.
But now Import.io has released a second version of Magic which seems to have dealt with those obstacles. Not only that, but they have released an API for Magic that lets you see what’s going on behind the scenes. more…
In this post I want to let you how I’ve managed to complete the challenge of scraping a site with Google Apps Script (GAS).
The challenge was to scrape arbitrary sites and save all the site’s pure text (stripping all the html markup) into a single file. Originally I was going to use python and PHP solutions, but then I thought I’d try using Google App Script instead. And it turned out pretty well. more…
Most of developers stuck with the cookie handlng in web scraping. Sure it’s a tricky thing and this once has been my stumbling stone too. So here mainly for new scraing engineers i’d like to share of how to handle cookie in web scraping when using PHP. We’ve already done the post on scrape by cURL in PHP, so here we’ll only focus on a cookie side. more…
This is part 1 of a series dedicated to getting novices started using a simple web scraping framework using python.
In this post we will get up and running with simple web scraping using Python, specifically the Scrapy Framework. more…
I often receive requests asking about email crawling. It is evident that this topic is quite interesting for those who want to scrape contact information from the web (like direct marketers), and previously we have already mentioned GSA Email Spider as an off-the-shelf solution for email crawling. In this article I want to demonstrate how easy it is to build a simple email crawler in Python. This crawler is simple, but you can learn many things from this example (especially if you’re new to scraping in Python). more…