Why is the FreeBSD Project home page the top result when using DuckDuckGo to seek NetBSD in the freebsd.org domain?

<https://duckduckgo.com/?ia=web&t=h_&q=NetBSD+site%3Afreebsd.org>

There's no mention of NetBSD at the home page, or about FreeBSD:

<https://www.freebsd.org/>, <https://www.freebsd.org/about/>

Google Search results are less confused than DuckDuckGo:

<https://www.google.com/search?q=NetBSD+site%3Afreebsd.org&udm=14>

#DuckDuckGo #Google #FreeBSD #NetBSD

@grahamperrin As of a few minutes ago, it's not for me, when clicking on your DDG search link. The top result is https://forums.freebsd.org/tags/netbsd/ with https://www.freebsd.org/ being the second. (I don't know why it's there at all, though.)
netbsd

The FreeBSD Forums

@pauamma thanks. Results seem to be unpredictable.

I guess that popular clicks on an irrelevant page will cause the irrelevant page to remain at, or near, the top.

A few hours ago (originally pictured), the irrelevant FreeBSD Project page was uppermost.

A few minutes ago, the same result was uppermost, and the summary for 'Explaining BSD' had two matches for NetBSD in the first paragraph. In the first screenshot here:

"NetBSD uses a slightly different naming scheme and appends a single-letter suffix which indicates changes in the internal interfaces, for example NetBSD 1.4.3G."

Also a few minutes ago, the irrelevant page was in second place and 'Explaining BSD' had a quite different summary with only one match for NetBSD. In the second shot here:

"The description applies most closely to FreeBSD, which accounts for an estimated 80% of the BSD installations, but the differences from NetBSD, OpenBSD and DragonFlyBSD are small."

#DuckDuckGo