The “max-stale” request directive indicates that the client is willing to accept a response that has exceeded its freshness lifetime. If max-stale is assigned a value, then the client is willing to accept a response that has exceeded its freshness lifetime by no more than the specified number of seconds.
How do I adjust Cache-Control without cache?
To use cache-control in HTML, you use the meta tag, e.g. The value in the content field is defined as one of the four values below. HTTP 1.1. Allowed values = PUBLIC | PRIVATE | NO-CACHE | NO-STORE.
What is a good cache lifetime?
In almost all cases, static assets like images, JS, and CSS, do not change on a per-user basis. Thus they can be easily cached on the browser and on intermediate proxies and can be cached for a very long duration. Google generally recommends a time longer than 6 months or even a year for such content.
Does Lighthouse use cache?
Lighthouse considers a resource cacheable if all the following conditions are met: The resource is a font, image, media file, script, or stylesheet. The resource has a 200 , 203 , or 206 HTTP status code. The resource doesn’t have an explicit no-cache policy.
How do I change my cache-control max-age?
Cache-Control: max-age= This directive tells the browser or intermediary cache how long the response can be used from the time it was requested. A max-age of 3600 means that the response can be used for the next 60 minutes before it needs to fetch a new response from the origin server.
How do I set the Cache-Control max-age to 84600 seconds?
The following snippet can be added to your.htaccess file to tell the server to set the Cache-Control header’s max-age to 84600 seconds and to public for the listed files. Expires and Cache-Control headers can also be included with Apache by using the mod_expires module.
What is the difference between no-cache and Max-age=0?
Specifying no-cache or max-age=0 indicates that clients can cache a resource and must revalidate each time before using it. This means HTTP request occurs each time, but it can skip downloading HTTP body if the content is valid. Cache-Control: no-cache Cache-Control: no-cache, max-age=0 Specifications
What is Cache-Control and how does it work?
What is Cache-Control? Cache-Control is an HTTP cache header comprised of a set of directives that allow you define when / how a response should be cached and for how long. HTTP caching occurs when a browser stores copies of resources for faster access.
Does leaving out Cache-Control header disable HTTP caching?
To save you some searching, here are instructions on configuring a few popular web servers: Leaving out the Cache-Control response header does not disable HTTP caching! Instead, browsers effectively guess what type of caching behavior makes the most sense for a given type of content.
