From Longman Dictionary of Contemporary Englishsurfersurf‧er /ˈsɜːfə $ ˈsɜːrfər/ noun [countable] 1 
someone who rides on waves while standing on a special board2 → Net/Internet/Web surfer
someone who rides on waves while standing on a special board2 → Net/Internet/Web surferExamples from the Corpus
surfer• For those such as Mike, it was like a surfer trying to catch his wave.• Extreme surfer and skateboard styles are still a best bet.• But if surfers could no longer make those connections through space, they made them through time.• But modern surfers were capable of singing their own praises.• But to the surfer, it has no limits.• Netscape hooked millions of web surfers on Navigator by letting them have it for free.• The real test would be in the evening when surfers get home from work or school. 