Vary header parse
ClientSee which headers affect cache keys.
About Vary header parse
Split Vary request-header names. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.
How to use this page
Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.
Nearby workflows on Toolcore
- ETag parse — Identify weak vs strong ETag. when headers, identifiers, or reference tables need a sibling check.
- HTTP headers — Common request and response header fields—names, direction, and short summaries—filterable client-side. when headers, identifiers, or reference tables need a sibling check.
- Cache-Control parse — Split Cache-Control directives. when headers, identifiers, or reference tables need a sibling check.
- HTTP fetch test — Send GET/POST and other methods from your browser—see status and body; CORS limits apply. when headers, identifiers, or reference tables need a sibling check.
Common use cases
- Vary header parse for quick local checks without uploading data.
- Copy results into tickets, docs, or classroom notes.
Common mistakes to avoid
Unexpected input shape
See the intro and how-to notes for accepted formats.
FAQ
Is processing local?
Yes—this runs entirely in your browser.
Agent prefill?
Use q or qb for the main text field when supported.
More tools
Related utilities you can open in another tab—mostly client-side.
ETag parse
ClientIdentify weak vs strong ETag.
HTTP headers
ClientCommon request and response header fields—names, direction, and short summaries—filterable client-side.
Cache-Control parse
ClientSplit Cache-Control directives.
HTTP fetch test
ClientSend GET/POST and other methods from your browser—see status and body; CORS limits apply.