This feed does not validate.
In addition, interoperability with the widest range of feed readers could be improved by implementing the following recommendation.
<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
xmlns:content="http://purl.org/rss/1.0/modules/content/"
xmlns:wfw="http://wellformedweb.org/CommentAPI/"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
>
<channel>
<title>Proffice</title>
<atom:link href="http://www.proffice.dk/feed/" rel="self" type="application/rss+xml" />
<link>https://www.proffice.dk</link>
<description>Proffice</description>
<lastBuildDate></lastBuildDate>
<language>en-US</language>
<sy:updatePeriod>
hourly </sy:updatePeriod>
<sy:updateFrequency>
1 </sy:updateFrequency>
<generator>https://wordpress.org/?v=6.7.2</generator>
</channel>
</rss>