How to check how crowded an Etsy search phrase is
Keywords measures a search phrase against live Etsy results, so you can choose tags and titles where your listing has a chance to be seen.
1Measure a phrase
Open Keywords from the menu on the left, type a phrase a buyer would search for, and press Measure.

Keywords: the phrase table lamp measured, with competing listings, front page age, listed this year and price band. 2Read the result
Competing is how many active listings use the phrase. Front page tells you how old the top results are. Listed this year shows how many are recent. Price band is the middle of what those listings charge.
Press What these numbers mean for a longer explanation.
Under What those listings also tag themselves with, press any word to measure it next.