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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3
votes
1answer
147 views

Can server break clients' cache settings?

I have disputed a domain name to a cybersquatter that I expect to recover soon. The problem is that the cybersquatter has changed the cache headers and now every user who already visited the site or ...
0
votes
1answer
215 views

Clear the cache of the last visited page

I have an HTML page that has shows if a server is online of offline via an IFRAME transcluding a php file. If someone clicks on a link, like to turn the server on or off and presses the Back button ...
10
votes
2answers
256 views

Control over the Internet Archive besides just “Disallow /”?

Are there any mechanisms to control what the Internet Archive archives on a site? I know to disallow all pages I could add: User-agent: ia_archiver Disallow: / Can I tell the bot that I want them ...
2
votes
1answer
223 views

Set expiry date for image or resource

How do I set expiry date for an image? Is this a server side operation or can it be done as an html tag attribute? What if I only want to set different expiry dates for different images/resources?
0
votes
1answer
1k views

Leverage browser caching and Specify a cache validator?

http://gtmetrix.com/reports/enji.se/RVzr15zT That's what my result looks like! Does anyone know how to fix Leverage browser caching and Specify a cache validator? I've googled it but didn't find ...
1
vote
1answer
151 views

Retrieve static webpage on client cache from dynamic content

I was developing a website on a certain web host and they lost everything. They told me their disks crashed and even the backup are unretrievable. I am mad. As I was often accessing my website ...
3
votes
1answer
822 views

Index of Content on a Defunct Website/Blog

Is there a way to find the content on a defunct website or blog? How do you find the content that was on a website from two or three years back? Google cache doesn't appear to hold information from ...
1
vote
1answer
425 views

How to refresh Google Reader cache for a specific domain

Brief history domain.com was associated with a blogspot. domain.com changed to an institutional site and features a small code instructing which file should be retrieved by RSS readers. <link ...
3
votes
1answer
160 views

Problem with browser caching images

I'm sure many site admins must deal with this sort of problem all the time, but I don't have a really good and simple solution myself. It is what happens when you overwrite an existing image on the ...
2
votes
1answer
371 views

Downloaded file is from stale cache

I've FTPed a new installer file (for an app I'm maintaining) up to a server on the web, replacing the old installer file. My boss has already sent an email to our users saying "get the new installer ...
3
votes
3answers
335 views

Getting google to reindex faster

We run a high-traffic site for a large organization and it was compromised through an editor account. The attacker was able to poison the google cache, and the visible result to us is that if you ...
1
vote
2answers
38 views

Confusing caching issue-DNS

Yesterday I changed my DNS servers to point to a different server. This change has still not been displayed on my own computer, but it does from other computers around the world (checked using ...
2
votes
1answer
136 views

Caching preventing users seeing site updates

I'm experiencing a caching issue I can't explain. This is happening across browsers, IPs and ISPs. If a user force-refreshes, they see the new content. If they then refresh or return to the page, the ...
0
votes
1answer
289 views

google cache grabber [duplicate]

Possible Duplicate: How to recover a website from google cache? Does anyone know a script to grab all contents of a site from google cache?
3
votes
1answer
192 views

Image not updating for some users

I don't know if this is the best practice, but we added an image with a snow delay for our school. For some users the image wouldn't come up. Is this a matter of the browser or something else? I had ...
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
77 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
308 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
558 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
718 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
1k 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
412 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
236 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 ...