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			All class groups	>	Search tags: web crawler

	1. Blue Crawler

Supplied by: kai <e-mail contact>

Crawl and retrieve links of Web pages

This class can be used to crawl and retrieve links of Web pages

It can retrieve a given Web pages and retrieve the URL of all linked pages recursively.

The class can also crawl all linked pages until it finds given search keywords.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (83.3%)`	`Good (83.3%)`	`Sufficient (75.0%)`	`Good (83.3%)`	`-`	`-`	`Sufficient (65.8%)`	418
Month:	Not yet rated by the users

	2. Simple Page Crawler

Supplied by: Jacek Lukasiewicz <e-mail contact>

Retrieve HTML pages and extract its elements

This package can retrieve HTML pages and extract its elements.

There is one class that can retrieve remote Web pages.

There are also other classes that can extract page elements like the words in the page body, links, count the words in a page, etc..

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (91.7%)`	`Good (91.7%)`	`-`	`Good (91.7%)`	`-`	`-`	`Sufficient (64.2%)`	534
Month:	Not yet rated by the users

	3. Web Crawler using MySQL DB

Supplied by: vivek <e-mail contact>

Retrieve Web pages and store links in a database

This class can be used to retrieve Web pages and store the URLs links in a MySQL database.

It retrieves a given Web page and parses its HTML content to extract the URLs of links and frames.

The URLs that are crawled are stored in a MySQL database table if the URL was not yet stored previously.

The class can also display in a Web page the list of URLs already stored from a given domain.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Good (81.2%)`	`Good (81.2%)`	`-`	`Good (81.2%)`	`-`	`-`	`Not sure (56.9%)`	1046
Month:	There are not enough user ratings to display for this class.

	4. Crawler

Supplied by: Md. Shaiful islam <e-mail contact>

Extract links and images from remote Web pages

This class can be used to extract links and images from remote Web pages.

It can access Web pages, parse the pages HTML and extract the URLs of the links and the images.

If necessary, the class may access a login page and emulate the submission of a login form to subsequent accesses can be done on behalf of the logged user.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Sufficient (75.0%)`	`Sufficient (69.4%)`	`-`	`Sufficient (77.8%)`	`-`	`-`	`Not sure (52.2%)`	1396
Month:	Not yet rated by the users

	5. Fetch Link Class

Supplied by: Rahman Haghparast <e-mail contact>

This class extracts every link in a web page

This class uses text parsing and no regular expressions to find and extract every link in a webpage.

This class is suitable for developers who want to develop spider and crawler programs.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Sufficient (62.5%)`	`Sufficient (71.9%)`	`Sufficient (68.8%)`	`Sufficient (62.5%)`	`-`	`-`	`Not sure (51.6%)`	1436
Month:	Not yet rated by the users

	6. Robots_txt

Supplied by: Andy Pieters <e-mail contact>

Test if a URL may be crawled looking at robots.txt

This class can be used to check whether a page may be crawled by looking at the robots.txt file of its site.

It takes the URL of a page and retrieves the robots.txt file of the same site.

The class parses the robots.txt file and looks up for the rules defined in that file to see if the site allows crawling the intended page.

The class also stores the time when a page is crawled to check whether next time another page of the same site is being crawled it is honoring the intended crawl delay and request rate limits.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`Not sure (50.0%)`	`Sufficient (62.5%)`	`Not sure (50.0%)`	`-`	`-`	`-`	`Insufficient (36.2%)`	2148
Month:	Not yet rated by the users

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