The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from March 2011. This uses the new HQ software for distributed crawling by Kenji Nagahashi.
What?s in the data set:
Crawl start date: 09 March, 2011
Crawl end date: 23 December, 2011
Number of captures: 2,713,676,341
Number of unique URLs: 2,273,840,159
Number of hosts: 29,032,069
The seed list for this crawl was a list of Alexa?s top 1 million web sites, retrieved close to the crawl start date. We used Heritrix (3.1.1-SNAPSHOT) crawler software and respected robots.txt directives. The scope of the crawl was not limited except for a few manually excluded sites.
However this was a somewhat experimental crawl for us, as we were using newly minted software to feed URLs to the crawlers, and we know there were some operational issues with it. For example, in many cases we may not have crawled all of the embedded and linked objects in a page since the URLs for these resources were added into queues that quickly grew bigger than the intended size of the crawl (and therefore we never got to them). We also included repeated crawls of some Argentinian government sites, so looking at results by country will be somewhat skewed.
We have made many changes to how we do these wide crawls since this particular example, but we wanted to make the data available ?warts and all? for people to experiment with. We have also done some further analysis of the content.
If you would like access to this set of crawl data, please contact us at info at archive dot org and let us know who you are and what you?re hoping to do with it. We may not be able to say ?yes? to all requests, since we?re just figuring out whether this is a good idea, but everyone will be considered.
TIMESTAMPS
The Wayback Machine - http://web.archive.org/web/20110609000208/http://perldoc.perl.org/index.html
Core documentation for Perl 5 version 14.0, in HTML and PDF formats.
To find out what's new in Perl 5.14.0, read the perldelta manpage.
If you are new to the Perl language, good places to start reading are the introduction and overview at perlintro,
and the extensive FAQ section, which provides answers to over 300 common questions.
Site features
Improved navigation
When you scroll down a page, the top navigation bar remains visible at the top of your screen,
so the page name, breadcrumb trail, and other links are always available.
Pop-up index display
Documentation pages now have a 'Show page index' link in the navigation bar. Clicking this
opens a draggable, resizable window with an overview of the page you're reading.
Improved search
It's now even easier to find the page you need. For example, just type 'getopt long' into
the search box to be taken directly to the Getopt::Long documentation.
Recently viewed pages
The right-hand side panel shows the last 10 documentation pages you viewed. As with the
search engine, this feature still works if you're using an offline local copy of the site.
Improved syntax highlighting
As well as a better highlighting algorithm, code blocks now have line numbers to make
it easier to see line breaks.
Module index links
View the module indexes with a single click from the left-hand side panel.
Downloads
The complete documentation set is available to download for offline use.
Full version (contains HTML and PDF files) - perldoc.tar.gz
As well as the documentation pages, the perldoc search engine is also included in the above downloads.
No installation is required, just unpack the archive and open the index.html file in your web browser.
