How do I change my Cache-Control max-age?

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 Cache-Control max-age 31536000?

Final settings

1. Use Gulp, Webpack, or similar to add unique hash digits to your css, js, and image files (like app-67ce7f3483. css);
2. For js,css, and image files, set Cache-Control: public, max-age=31536000, no Etag, no Last-Modified settings.
3. For html files, use Cache-Control: no-cache, and Etag.

How do you set Cache-Control max-age in HTML?

max-age. The max-age=N request directive indicates that the client allows a stored response that is generated on the origin server within N seconds. In the case above, if the response with Cache-Control: max-age=604800 was stored in caches 3 hours ago, the cache couldn’t reuse that response.

What is Max-age in Cache-Control?

Cache-control: max-age It is the maximum amount of time specified in the number of seconds. For example, max-age=90 means that a HTTP response remains in the browser as a cached copy for the next 90 seconds before it can be available for reuse.

What is cookie Max-Age?

Set the cookie “Max-Age” attribute. A positive value indicates when the cookie should expire relative to the current time. A value of 0 means the cookie should expire immediately. A negative value results in no “Max-Age” attribute in which case the cookie is removed when the browser is closed.

How do I setup a Cache-Control directive?

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.

Is it good to cache HTML?

For sites with static page content — i.e., not personalized in any way — page caching creates no problems. But for sites with dynamic content that changes among users, caching HTML content could create errors.

How do I setup a cache-control directive?

Is index HTML cached?

Since the browser doesn’t have those files in the cache, it will get them from the server. html file is cached. Let’s say we just deployed a new version of our app, and the static files, and index. html file with them, are cached.

How to set the max age of a cache-control header?

In Apache, you’ll have to set this header manually using the Header set directive, like so: Header set Cache-Control “max-age=84600, public” The max-age value is set in seconds, for example, max-age=300 for a five-minute TTL, and max-age=63072000 for two years.

What does the “max-age” in the HTTPS header mean?

Within the headers, the max-age defines what period the site is willing to accept HTTPS-only (31536000 in the examples are 12 months). Usually, the amount of time is less important. This is because the trend is to keep using HTTPS for privacy and data protection anyways.

How to modify Cache-Control directives other than Max-age?

To modify Cache-Control directives other than max-age (see RFC 2616 section 14.9 ), you can use the Header directive. When the Expires header is already part of the response generated by the server, for example when generated by a CGI script or proxied from an origin server, this module does not change or add an Expires or Cache-Control header.

How is the max-age of a file calculated?

The Cache-Control: max-age is calculated by subtracting the request time from the expiration date and expressing the result in seconds. The base time is either the last modification time of the file, or the time of the client’s access to the document.