WebCrawler still exists and is chugging along. According to Wikipedia, the website last changed hands in 2016 and the homepage was redesigned in 2018.
Since then it has been working under the same company: System1.
It is not as popular as it used to be, however, you can still search for information on the platform and get relevant results.
According to SimilarWeb, WebCrawler has only 240,000 monthly visitors, making it not even in the top 100,000 websites in the world.
A bit wild considering that it was the 2nd most populat website in the world in 1998.