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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15
votes
4answers
31k views

How do I set expiration headers for CSS, JS, and Images?

I have recently analysed my website with pagespeed addon on firebug. It suggested me to set expiration on CSS, JS and image files. I am wondering how do i do this?
3
votes
2answers
847 views

How can I make redirections cacheable to speed up load times?

Google PageSpeed says this: Avoid landing page redirects To speed up page load times for visitors of your site, remove as many landing page redirections as possible, and make any required ...
222
votes
42answers
16k views

Recovering a lost website with no backup?

Unfortunately, our hosting provider experienced 100% data loss, so I've lost all content for two hosted blog websites: http://blog.stackoverflow.com http://www.codinghorror.com (Yes, yes, I ...
1
vote
2answers
2k views

.htaccess and browser caching

I ran across these suggested htaccess edits. Is this a good practice? Is this something I should implement on my wordpress site?: <IfModule mod_expires.c> ExpiresActive On ExpiresByType ...
9
votes
2answers
188 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 ...
6
votes
2answers
2k views

Apache: How can I force the browser to reload CSS files?

How to force the user's web browser to reload CSS files with Apache Server? I updated my website's CSS file but some users are still seeing problems that would be resolved if their browsers fetched ...
4
votes
1answer
3k views

“404. That’s an error.” when viewing from Google cache

My site is getting 404. That’s an error. message when I click on cached from Google search results. This is the error message from Google: That’s an error. The requested URL ...
1
vote
2answers
67 views

How to compel the browser to get the webpages from a server not from a local cache even if a particular page is frequently requested?

I have been testing a web site but every time I complain to the web developer that I am not able to see on the website which you have recently corrected,he told me that I am seeing that content from ...
0
votes
0answers
322 views

Is there a way to make Alexa's ia_archiver slow down its crawling of my website?

Alexa's ia_archiver bot is the main contributor to the Internet Archive's "Wayback Machine" web collection, and there are advantages to having my website included in that collection. There are other ...