Test page
Check your work against the conformance tests. Everything runs in this browser with the same checker and validators you can download. Nothing you paste is sent to 2Timer. A registration link or Publisher check talks only to the URL you give it, and reaching it at all proves it answers browsers.
What to check A meet document you paste or open.
Check it as As the kind its omx.kind names: registration or results. A document with no kind fails.