Offline Cache-Control directive inspector
Parse cache directives, durations and field lists in an HTTP response header, distinguishing no-cache from no-store.
It is only processed in the browser, not uploading or saving. Leaving the page will be cleared; the calculation can also be cleared and the result can be discarded. Do not enter other people's credentials or private keys.
Offline Cache-Control directive inspector User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Paste private, no-cache, max-age=0 to review storage scope, validation and freshness separately.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Recognize commas inside quotes, validate directive grammar and reject duplicates or invalid durations. Actual network behavior is not inferred.
scope of use
Up to 4096 characters and 50 directives. Not a live header query or proof of cache safety; check the relevant specification for unknown extensions.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
Up to 4096 characters and 50 directives. Not a live header query or proof of cache safety; check the relevant specification for unknown extensions. Please compare the input unit, rounding method, applicable rules and data version first.