 Shares of Squarespace Inc. SQSP, 18.70 were up about 14 in premarket trading Thursday after the company, which enables people to build websites, topped expectations with its latest quarterly revenue and upped its outlook for the full year. The company posted a first-quarter net loss of 92.9 million, or 67 cents a share, compared with a loss of 2.1 million, or 11 cents a share, in the year-earlier quarter. 