Every risky or version-specific fix should be traceable.

Source order

1. 1

   Official OS, browser, app, and manufacturer documentation. This is the default for permissions, error codes, drivers, firmware, repair manuals, and model-specific steps.

2. 2

   Standards and authoritative technical references. Used when the issue concerns a protocol, API, or published technical behavior.

3. 3

   Reputable specialist documentation. Used to add context when primary documentation does not cover a practical symptom.

4. 4

   Community evidence. Useful for discovering patterns, but never the only basis for a risky repair instruction or model-specific fact.

What “last verified” means

A verification date means the cited source and DeviceOK diagnostic path were checked on that date. It does not mean the underlying product stopped changing afterward. App, browser and OS-specific pages are placed into a faster review cycle than stable concepts such as keyboard events or display reference patterns.

What DeviceOK will not publish

No unofficial driver mirrors, firmware mirrors, DLL downloads, registry-cleaner downloads, fabricated error meanings, or automatically indexed model pages with no model-specific evidence. A database record can exist internally without becoming a search page.

Corrections and scope

DeviceOK is independent. Browser tests can be useful evidence but cannot replace every native hardware diagnostic or professional instrument. Pages explicitly state those limits and point to official support when the browser cannot safely observe the relevant state.