Testing document title: missing title
There's no <title> element anywhere in <head> on this page, not even an empty one, it's absent entirely. This is invalid HTML, <title> is a required element, but worth testing what actually happens rather than assuming.
Expected result: Chrome is known to fall back to generating a tab title from the page's <h1> rather than showing the URL or a blank tab, worth checking whether the tab text below actually matches this page's own <h1>. Other browsers may still fall back to the URL or file path instead, this needs confirming per browser rather than assumed to be universal. What assistive technology announces on page load is a separate question again, and needs its own confirmation, don't assume it matches whatever the tab shows.
HTML markup
<head>
<!-- no <title> element -->
</head>