Question

Consider we have the following xml document

<?xml version="1.0" encoding="utf-8"?>
<Root>
  <Child />
</Root>

As you can see the Root does not have default namespace specification. Default namespace is specified with an attribute xmlns.

The question is which is the default namespace of such xml document?

If you post an answer could you please also include a reference where information was taken from, e.g. W3C.

Answer 1

There is no default schema or namespace in XML.

If you do not declare a namespace in your XML document, it has none.

From the spec:

For a name N that is not in a namespace, the namespace name has no value.