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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1answer
70 views

Wrong content for URL cache on Google

I have this website natural-track.com and when I do a cache check I get a completely different website,This is Google's cache of ...
1
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1answer
348 views

No cache and Google AdSense performance

I'm developing a page where I need to avoid JavaScript caching by browser. I've added this header: <?php header('Cache-Control: no-cache, no-store, must-revalidate'); header('Pragma: no-cache'); ...
0
votes
1answer
3k views

Why am I frequently asked to access a cached copy of a particular webpage?

I moved my WordPress website from localhost to a live server, but sometime I am able to access my website and sometime not, it shows: Oops! Google Chrome could not find www.example.com Access a ...
1
vote
1answer
28 views

Caching Google do not

I'm trying to test the speed of my site with monitoring-transactionnel.com I have an error Vary: Accept-Encoding with Google but I do not know how to settle the problem.
2
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2answers
2k views

URL with query disables caching?

Does having a query string attached to a URL cause browsers to never cache it? For instance, my site does something like this: /radar-picture.png?v=sep2013 And it would appear that FireFox never ...
2
votes
1answer
30 views

Ideal cache times for browser caching times for different file types?

I am trying to improve my site's performance - and that includes caching. I found some great caching via .htaccess from the boilerplate html5 template - but the cache times seem odd. Does anyone ...
3
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2answers
1k 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 ...
1
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2answers
79 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 ...
1
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1answer
293 views

Apache returns 304, I want it to ignore anything from client and send the page

I am using Apache HTTPD 2.2 on Windows. mod_expires is commented out. Most other stuff are not changed from the defaults. gzip is on. I made some changes to my .js files. My client gets one 304 ...
1
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1answer
478 views

Nginx Browser Caching using HTTP Headers outside server/location block

I am having difficulty setting the HTTP expires headers for Nginx outside of specific server (and then location) blocks. What I want is to something like the following: location ~* ...
1
vote
1answer
86 views

Website still displays deleted files

I went to update a website's CSS today and noticed whenever I uploaded the file with my changes nothing would happen - no changes would appear on my site. This was the same with any of the images I ...
2
votes
1answer
91 views

Website Not Cached by Google Since 1 and Half Months [closed]

My website www.rushinformation.com is not being cached by Google since 1 April 2013 but pages are getting indexed. My robots.txt file is fine. So please tell me what could be the reason for this and ...
4
votes
1answer
4k 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
1answer
37 views

Caches and Website Screen Shots

If I am creating a website to filter retail websites, like shipping or eco-friendly, etc. Could I use the screenshot of the homepage as the icon to link to the direct website? Ie. if my filters ...
2
votes
1answer
68 views

Files not caching

We store our images on S3 and our performance has been incredibly slow. This morning we turned on CloudFront in hopes that our performance would increase. When I analyze our performance with ...
2
votes
2answers
320 views

Why does modx-based site start using different domains for some content?

situation I have a modx site on a VPS with multiple domain and subdomain names. The modx site should use what I call the 'primary' domain name's 'primary' subdomain, ie www.intendedname.tld . The ...
5
votes
1answer
583 views

How do Expires headers and cache manifest rules work together?

I find the W3C's official Offline Web Applications specification to be rather vague about how the cache manifest interacts with headers such as ETag, Expires, or Pragma on cached assets. I know that ...
0
votes
1answer
252 views

Why Google stopped caching my site? [closed]

Today I noticed that Google has stopped caching my site. I don't know why? cache:www.technostall.com (that's how I check cached pages in Chrome) gives a 404 page. Can anyone let me know why is this ...
1
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2answers
349 views

Google Cache CSS and HTML files are out-of-sync

I am monitoring the cached version of the main page of one of my sites. I have noticed something strange. Obviously, the cached pages is displayed with the latest CSS file. Yet, the page content is ...
1
vote
1answer
224 views

Why is my cache manifest failing?

I have created the following cache maniest file- CACHE MANIFEST CACHE: http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js ...
3
votes
1answer
261 views

Discrepancy between Google cached meta description and description in search result

I have developed a 1 page website to deal with time zone world clocks. I have noticed that Google has the latest version of the page in its cache, so it has access to the latest meta description. ...
2
votes
4answers
876 views

How to make CloudFlare Cache all pages

CloudFlare seems to only cache my homepage, and I am wondering if there is a way to force it to cache all pages. Notice it when BlueHost went down today and only my homepage is cached by CloudFlare. ...
5
votes
3answers
234 views

How can I make a “backup” that can serve static pages if the main site goes down?

We've got one server running our company's website. Unfortunately, it sometimes experiences problems. Is there a way to set up another server to serve the static websites, in case the original server ...
3
votes
2answers
705 views

Find old web content via Google cache or similar

I have a bit of a problem. My client is running a Joomla 1.0 site and some content (text) was lost. There was no backup configured of the MySQL database. The content was lost approx. around the 16:th ...
0
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0answers
405 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 ...
1
vote
2answers
219 views

Cloudflare displaying cached CSS in-line?

I recently enabled CloudFlare on my domain, and when I make HTML statements like this: <link href="css/main.css" rel="stylesheet" /> The CSS gets displayed in-line, like this: ...
4
votes
1answer
2k views

How to do a cacheable redirection?

When users enter my website example.com, their "preferred" language is detected and they are redirected (using a 301 Moved Permanently redirection) to example.com/en/ (for English), example.com/it/ ...
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1answer
3k views

How to specify expiration of cacheable resources?

I'm trying to speed up a wordpress site -- this site: http://richardclunan.net I'm following the observations here: http://gtmetrix.com/reports/richardclunan.net/9ps7Zc0j The first item says: "The ...
2
votes
1answer
2k views

Google Chrome audit: resources are explicitly non-cacheable?

If I run a Google Chrome audit on a site, it lists all CSS, PNG, JPG, JS files and even the main domain (i.e. www.example.com) under the heading: Leverage browser caching The following resources ...
0
votes
2answers
102 views

Optimizing data downloaded via 'link' media queries and asynchronous loading

I have a website that tries to make sensible use of media queries and avoid 'expensive' CSS for users of mobile devices. My eventual goal is to make it 'mobile-first' but for now, since it is based on ...
2
votes
1answer
64 views

Curious about a cached old domain

I am a bit curious about my new domain. I had a domain before, let's say http://example.com/. Before expiration of that domain, I bought a new one with the name http://another-domain.com/. I uploaded ...
1
vote
2answers
81 views

Cache website via CDN for visitors, not for users

I'm not sure what this is called. For example, if you're logged out of Reddit, you see a cached, static version of the site from the CDN. When you're logged in, you don't hit the CDN and instead ...
3
votes
1answer
543 views

Visitors have old website cached in their browsers

My client's new website is example.com, the old website is example.co.uk. I've re-pointed the A Records to the new website (so as to leave the emails alone) and put in 301 redirects from old pages to ...
4
votes
2answers
527 views

Mediawiki much slower in Firefox

I've a couple of Mediawiki (1.19.1 with Vector Skin) sites on Dreamhost shared hosting and I've found that access trough Firefox is much slower than trough Chrome. For example at this moment, after ...
5
votes
1answer
4k views

HTTP Header Cache Time: s-maxage and max-age

I am setting up a CDN for my website, I found the following sample for adding to the 'httpd.conf' file, this is used to adjust the cache-time for client and CDN: ExpiresActive On ExpiresByType ...
7
votes
4answers
324 views

Any ideas why Google not caching my site?

The site is www.books-for-children.com, developed in Wordpress CMS. It was launched about two months ago and still has not been cached by Google, which seems highly unusual. Any ideas where I might ...
3
votes
1answer
303 views

Difficulty enabling caching on inherited site

I have been asked to work on a corporate website a previous employee had created. The site is on shared GoDaddy hosting. One of the first things I noticed (after the 140KB JPEG on the front page, ...
8
votes
3answers
211 views

Is it worth it to change my entire user images file structure to take advantage of simple browser caching?

On one of my mobile sites, I simply store my user's profile images as '1.jpg' in their user folder, and incrementally go from there for any extra pics they upload. This means that whenever they change ...
1
vote
1answer
1k views

What response headers encourage 304-Not Modified upon reloads?

When looking at the network waterfall in Firebug/Chrome/IE9, I keep seeing "200-OK" instead of "304-Not Modified" for many cache-able files (images, js, css) on this page, for example. I believe it ...
3
votes
4answers
3k views

how should cache control be set in the requests

i know that cache control headers can be set on the pages coming out from the web-servers (that is responses). Does anyone know how cache control header should be set on the requests? Should it be ...
6
votes
2answers
322 views

New requests for /cache/ URLs

A few weeks ago requests following this type of pattern: http://mysite/cache/7a226e8aa3a4380444a329a7b0dd0f40 http://mysite/otherfolder/cache/7a226e8aa3a4380444a329a7b0dd0f40 started to appear ...
1
vote
1answer
150 views

Potential issues with multiple home pages

I have a site where I want to have two different home pages: a general description page for anonymous users, and a dashboard page for logged-in users. I am debating between two implementations: ...
7
votes
2answers
2k views

Chrome causing 404's ending with “/cache/[hex-string]/”?

Since the last weeks we see many 404's on our sites caused by Chrome adding /cache/[hex-string]/ to the current page URL. The hex strings we have seen are: e9c5ecc3f9d7fa1291240700c8da0728 ...
1
vote
1answer
133 views

Setting Cache-Control and Expires headers for the end client only

I am trying to add explicit caching to 301 redirects. However, I am worried that a permanent redirect for one user might not be permanent for another user. So I'd like to use Cache-Control: no-cache ...
-1
votes
1answer
886 views

PHPFox caching? [closed]

I run a big phpfox website and I currently have server setup as follows: nginx (reverse proxy) --> Apache for dynamic content are there other ways to cache content with phpfox? I can't use memcache ...
1
vote
2answers
1k views

How to get browsers to only download CSS/Javascript when it changes?

I had an epiphany earlier when reading codinghorror. On a content website (blog/forum/website) the basic things rarely change if at all. So I was wondering if there was a way to cache them and only ...
0
votes
2answers
118 views

Make browsers not to make HTTP requests for cached items

I know that http caching and sending 304 response is to save some bandwidth and of course some load time. However in my web site there are about 40 css stylesheet files and 20 javascript files (don't ...
1
vote
2answers
3k 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 ...
1
vote
1answer
176 views

IIS and content caching

I'm a web developer and administer of a Windows 2008R2 Cloud Instance with IIS 7. I recently made an update to our website, but when I revisited the website, the website was being viewed with old ...
1
vote
2answers
905 views

Cache a resource across HTTP and HTTPS

Is there a way to specify that a resource should be cached when accessed over both HTTP and HTTPS? We have lots of static content that is initially served over HTTP and then re-served over SSL when ...