Your SlideShare is downloading. ×
4 Using Google Cache
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

4 Using Google Cache

1,047
views

Published on

Published in: Technology, News & Politics

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,047
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Cache What is a Cache ? According to en.wikipedia.org, a cache is simply a temporary storage area where frequently accessed data can be stored for rapid access. After these data have been stored in the Google's cache, they can be accessed easily (called the cached copy, or cached version) for future purposes.
  • 2. If you want to visit a site but you receive a 404 Error message (below is a sample), the best action to do is search for that site on Google by typing the cache:operator and the link.
  • 3. Below is an example of a cached page which is retrieved by typing cache: www.mytravelguide.com/restaurants/strestaurants-206401-Belgium_restaurants.html on Google. link Date cached
  • 4. Why Cache?
    • if an HKA is unable to access the page containing the information he/she needs
    • solves the problem of TLs and TLAs who can't retrieve or check data because the web page is down (404 error)
    • 5. helps them locate information which has been updated, revised, or removed from its website
  • 6. How about retrieving multiple copies of older versions? Unfortunately, Google only caches single copies of webpages, same as with Yahoo!, Ask, Live, Gigablast, etc. It means that if you want to find older versions of a particular website, you cannot be assisted by Google (and others) because it only stores the latest cached version of that webpage. However, there are some sources that contain archives of different websites with their corresponding date to give you an idea how old those archived pages are. One of these web archives is the Wayback Machine .
  • 7. http://www.archive.org/web/web.php “ Launched in October, the Wayback Machine is the public's access point to contents of the Internet Archive, which has been cataloguing webpages since 1996, and has given itself the goal of preserving -- among other things -- the 'entire publicly available web'." Per http://www.csmonitor.com/2001/1113/p25s1-stin.html An example of Wayback Machine's page displaying http://news.bbc.co.uk/'s pages from Dec 12, 1998 -Apr 1, 2008 ( Material typically becomes available 6 months after collection).