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Web Lookup Tool
Look up HTTP status codes and MIME types directly in your browser. The reference data is built into the page, so your searches never leave the browser and never touch server memory.
HTTP status mode helps you look up codes like 200, 404, or 503 and explains what they usually mean in a request/response cycle.
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HTTP status
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What this tool does
It helps you look up common HTTP status codes and MIME types so you can understand what a server response means or what content type a file should use.
Why it is private
The reference tables are included directly in the page, so your searches are not sent anywhere and never touch server memory.
What the two modes mean
- HTTP status: response codes like 200, 404, and 503 that describe how a request turned out.
- MIME type: content-type identifiers like
text/htmlorimage/pngthat tell browsers and tools what kind of data they are handling.
Helpful note
This is a curated built-in reference for common web work. It is meant to be practical and fast rather than an exhaustive standards archive.