与Michael [tm] Smith见this interview：

No,there won’t be a Valid HTML icon any time soon and likely not
ever. The reason is basically that “This is valid” icons/badges
promote the idea that there’s significant value in making public
claims of pass/fail document-conformance requirements in standards.

But the HTML5 checker is by design not intended to encourage anybody
to use it as a means to make public assertions of simple pass/fail
conformance of any documents to any particular specifications; it’s
intended solely as a checker — for people to use to catch unintended
mistakes in documents and fix them — not as a pass/fail certification
mechanism.

There won’t be any proper Valid HTML5 icon forthcoming,so if you’d
like to use one in your content,you’ll probably need to create one on
your own.

所以你没有获得徽章,因为一个徽章不存在.