A cache is a local copy of a file that exists elsewhere. Caching can take place in the browser, on a dedicated machine on a network, or at an ISP.

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2
votes
2answers
99 views

How to explain visitors that we don't control Google's results?

I have a message boards. Once in a while, some people contact us to remove anything related to them. We comply and delete all the posts and all traces. Some of those visitors still complain that they ...
1
vote
1answer
76 views

With the following settings shown here, will there be any caching in Firefox?

browser.cache.disk.enable = false browser.cache.memory.enable = false network.http.use-cache = true With the following settings above, will there be any caching in FF? Does the disk.enable and ...
1
vote
1answer
289 views

Why does IE still save and update files in the temp folder when caching is off?

In IE I changed the cache setting to "Every time I visit the web page" However, I noticed in the directory \Local Settings\Temporary Internet Files that the files are still being stored in here ...
2
votes
1answer
540 views

Problem with Expires/Cache-Control Headers

I'm using Apache 2.2.16. I've got the following HTML file in my htdocs folder: <html> <link media="screen" type="text/css" href="/css/test.css" rel="stylesheet" /> ...
5
votes
1answer
3k views

Can I expect browsers to cache static content served over SSL encryption?

With all the talk about FireSheep I am thinking of switching my web applications to use full https accross the entire site. However, I am concerned about caching. I use a lot of JavaScript, CSS files, ...
7
votes
6answers
714 views

drupal site speed increase

I'm using a drupal site with a theme from rockettheme. The users are member users. The problem is for unknown reason the site is very slow. Takes around 20 seconds to open the page. I have tried ...
5
votes
1answer
997 views

No mod_expires or mod_headers in apache, how can I cache images/js/css files?

Title says it all, we do not have control over our server environment and although we can request for them to recompile apache for us it will not happen overnight. Is there anything we can do is ...
1
vote
3answers
80 views

What type of websites shouldn't use a cache?

Is there ever a time when you should use caching? Like for frequently updated pages? Or, should you always cache? Please give examples and reason?
17
votes
1answer
365 views

How do I prevent Google from serving a cached version of my site?

From what I understand I can tell Google to remove pages from their archive if I add the header: <meta name="ROBOTS" contents="NOARCHIVE" /> But won't this also remove the page from search ...
4
votes
2answers
203 views

How can I cause a browser to download a new copy of a web page when it thinks that its cached copy is still valid?

Sometimes when I make small changes to a website, I notice that certain browsers are very stubborn about downloading the page again. Both F5 and CTRL-R are worthless and the only way to fix it is to ...