Recruiters do not browse LinkedIn. They search it, with the same terms they would type into a database: a title, a stack, a seniority. If those words are not on your profile you are not in the results, however good you are and however many connections you have.
This rewrites the headline and the About section around the terms that get searched, and then tells you which searches your profile still will not appear in. That last list is usually the useful part, because the gap is rarely the one people expect.
Questions people ask
What should a LinkedIn headline say?
Your role and the skills a recruiter would search for, in language a person would use. 'Senior Backend Engineer, Python and distributed systems' gets found. 'Passionate technologist and lifelong learner' does not, because nobody searches for it.
How long can a LinkedIn headline be?
220 characters. Most people use about forty of them, which wastes the single most heavily weighted field on the profile.
Does the About section affect whether recruiters find me?
Yes. LinkedIn searches the full text of the profile, so a skill named only in a job description from six years ago carries less weight than one in your headline and About.
Should I list every technology I have touched?
No. A wall of keywords reads as noise to a person and dilutes the terms you actually want to rank for. Name the things you would be happy to be interviewed on, which is the same test Career1's interviewer applies.
More free tools
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Each bullet rewritten, and why the original was weak.