Yes — the About section is indexed, and its 2,600 characters are the roomiest keyword surface on your profile. Its search role is the safety net: the place to naturally work in the tools, methods, and secondary job titles that did not fit in your headline or title fields, written as prose a human still wants to read.
Keyword queries match against About text, so a term that appears only there still connects you to searches for it. That makes About the right home for your long tail: the second and third job titles your market uses, the tools too numerous for a headline, the industry vocabulary — compliance regimes, methodologies, platform names — that recruiters drop into boolean strings. A profile whose About genuinely inventories this vocabulary matches dozens of queries the headline alone never could.
What About does not do is outrank stronger fields. The same phrase placed in your headline or current title appears to carry more weight than in summary prose, and About text does not feed the structured skill and title filters at all. So the strategy is layered: primary target phrase in the headline and title, filterable competencies in Skills, everything else woven into About.
The trick is that specificity and keyword density are the same thing when you write concretely. Compare: I am a passionate marketing professional with a proven track record — zero searchable terms. Versus: I run lifecycle and email marketing for B2B SaaS — HubSpot, Marketo, SQL for campaign analysis — and I have built attribution reporting from scratch twice. That second sentence is better writing and it carries six searchable terms. You do not stuff keywords into good writing; concrete writing simply contains them.
Structure for the skim. Only the first two to three lines show before the see-more fold, so open with the sentence that states who you are and what you want next — it is both your hook and your densest keyword line. Then two short paragraphs of proof with numbers, then, if it suits your field, a plain Specialties line listing tools and domains. That closing list is a decades-old LinkedIn convention precisely because it flags the terms honestly instead of contorting sentences around them.
The first failure mode is the empty About. Leaving it blank forfeits the largest indexed text block on the profile and reads as indifference to any recruiter who opens you. Even three sentences beat nothing. The second is the third-person corporate bio pasted from a company site — it is usually keyword-thin, and it reads as if someone else had to describe you because you would not.
The third is actual stuffing: invisible walls of comma-separated terms, phrases repeated verbatim five times, or skills listed that you cannot discuss. This fails twice — recruiters recognize it instantly and discount the whole profile, and any ranking benefit from repetition beyond natural mention is unproven. Write for the person who just clicked your name from a results list; the index will take care of itself.
The limit is 2,600 characters; using 1,000 to 2,000 of them well is plenty. Length matters less than the first three lines, which are all that display before the see-more fold, and concreteness, which is where the keywords live.
First person. LinkedIn is your own account speaking; third-person bios read as distant and are usually vaguer, which also makes them keyword-poorer. Write it the way you would introduce yourself to a hiring manager.
Yes, if your field has a real tool-and-domain vocabulary. A plain line listing your stack is honest, scannable, and gets the exact filterable phrases into indexed text without contorting your prose. Keep it to one or two lines of genuinely defensible terms.
Check your own profile against this advice - the free LinkedIn score shows what recruiters' search filters actually see.
