The page with the https://stackexchange.com/sites
URL, amongst normal sites,
returns an entry for Stack Overflow for Teams:

If this is intentional, and Stack Overflow for Teams should appear there, then there are several obvious issues with it:
The subtitle consists only of a "Q&A for" text
The category is, ironically, "uncategorized" (which should, arguably, be "Technology")
The "percent answered" stat does not account for the division by zero, resulting in
NaN% answered
(seems like the supposedly fixed oversight strikes again, see: here, here, and here)All the stats are obviously pointless and potentially problematic should the information be exposed (as Teams are supposed to be private)
The link in the site name also leads to a page for locating the Team instance by its URL slug:
https://app.stackoverflowteams.com/teams/locate
If it is not intentional, then it should be filtered out from the result set,
just as it is not returned by the API when using the /sites
endpoint.
Q&A for
part might be getting the string from a table assite | topic
, there is no topic for teams, and it is left bank. Also, uncategorized should be left alone - this isn't about technology; what if I used a Teams subscription in my restaurant? or my biochemical laboratory? Also, the 0, 0, NaN% was fine; it only needed some polishing, such as "no stat from private sources." Cont:*.stackexchange.com
for teams, thus it is totally valid. The only issue is that Teams is a service/product rather than a website, so it should be excluded.