HTTP caching for https://remix.run

Overview

✅

This resource can be cached.

This response can be cached because of a directive in the Cache-Control header.

✅

This resource has a cache control header.

Cache-Control: public, max-age=0, must-revalidate
❌

This resource does not have an entity tag.

HTTP response cache headers

These are the raw caching-related HTTP headers that were returned by the server:
age: 728
cache-control: public, max-age=0, must-revalidate
vary: accept-encoding
🧭

Cache-Control

Cache-Control: public, max-age=0, must-revalidate
  • 🌐
    Public
    (RFC)
    The public directive indicates that any cache may cache the response, even if it would not typically be cacheable.
  • ⏳
    Max Age
    (RFC)

    The max-age directive indicates the response should be considered stale immediately.

    For example, since this response was fetched on Sep 16, 2026, 12:11:07 PM, it will become stale on Sep 16, 2026, 12:11:07 PM.

  • ❗
    Must Revalidate
    (RFC)
    The must-revalidate directive indicates that when the response becomes stale, the cache must revalidate the cached response before it can be used again.
⌛

Age

The Age header indicates how long the response has been in the cache.

Age: 728

In this case, the response has been in the cache for 728 seconds (12 minutes 8 seconds).

🔀

Vary

The Vary header indicates which request headers the server response may be dependent on. If any of the listed headers change, then the response may be different. This allows the server to send the correct cached response for each request. For example, ensuring that a client that does not support compression does not receive a cached compressed response.

Vary: accept-encoding

Accept-Encoding: The server response is expected to be different depending on the encodings that the client accepts via the Accept-Encoding header in the request. For example, if the client does not support compression, then the server may send a cached uncompressed response. If the client does support compression, for example, by sending a a Accept-Encoding: gzip header, then the server may send a cached compressed response.