I have two Team Fortress Classic servers which show on 'All servers' (when I search but do not show on the Team Fortress Classic list of the site).
 
176.31.182.154:27004 ([TFC-R.org] Terrum.co.uk AdminOP Server [NOSTEAM WORKS])
176.31.182.154:27045 ([TFC-R.org] Terrum.co.uk FUN Server [NOSTEAM WORKS])
 
They show fine on the masterserver list in-game however.
 
It's not that much of a problem. But I just thought I'd report it anyway to see if it was fixable?
 
Many thanks!