\ba Unicode word boundary
httpthe literal text http (case sensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case sensitive)
://wwwthe literal text ://www (case sensitive) \.the literal . (4610 / 568 / 2E16)
linkedinthe literal text linkedin (case sensitive) \.the literal . (4610 / 568 / 2E16)
com/the literal text com/ (case sensitive) \S*any character that is not Unicode whitespace, repeated any number of times
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string