Citoid is currently unable to automatically fetch citation information from URLs for the London Gazette, which is the UK newspaper of record. Looking at a sample article, I suspect that it may be that a lot of the metadata for the article itself is in the body of the page, rather than the head, but it is tagged as metadata.
For example, https://www.thegazette.co.uk/London/issue/35586/page/2475 contains the metadata section of:
<dl class="metadata" id="pdf-description">
<dt>Publication date:</dt>
<dd>
<time datetime="1942-06-05">5 June 1942</time>
</dd>
<dt>Issue:</dt>
<dd id="issue-number">35586</dd>
<dt class="page-number">Page:</dt>
<dd id="page-number">2475</dd>
</dl>
Publication date, issue number, and page number are pretty much the only details needed; the publication (The London Gazette) can be trivially inferred from the URL, and there are no author details to fill. These can be passed either to cite news / cite magazine, or there is a London Gazette template on en-wiki (which is an implementation of cite magazine).
Would adding support for London Gazette articles be technically possible?