Verifying and testing your XML
It’s a good idea to verify the format and structure of your XML file before trying to register your content. You can validate your XML locally using an XML editor such as Oxygen or XMLSpy, or command line tools such as xmllint. We provide an XML parser that supports single file uploads for validation only.
You can also use our test system which works in the same way as our live system, but uses a test database and does not register DOIs with Handle. Log in to the test system with your Crossref username and password. If your Crossref username and password do not work with the test system, please contact us so we can enable access for you. If you have forgotten your password, you can reset it - learn more about changing your Crossref account password.