What a headhunter actually looks at when they search LinkedIn
LinkedIn Recruiter filters on standardised fields before it ranks anything: the title field in your experience section, your skills and your location. The headline never enters that filter — it is only scanned in keyword search and is truncated at roughly sixty characters in the result card. BrandLoop’s profile optimisation reads a profile in exactly that order: filter fields first, headline second.
Most LinkedIn advice starts with the headline. That advice concentrates on the wrong field, and we know why from papers LinkedIn published itself.
Search happens in two stages
LinkedIn’s Talent Search paper describes a recruiter query being standardised into entities first — title, skill, company, location. Those entities are applied as a hard filter. Only then does the learned ranking model run.
“the recruiter search engine first standardizes them into the title, software engineer and the skill, machine learning”
The practical consequence: if you do not clear the hard filter, ranking is irrelevant. You are not in the result set at all. BrandLoop’s profile optimisation module reads your profile in exactly that order: filter fields first, headline second.
The title field is not the headline
The Title field inside each experience entry is a separate, structured field. The recruiter’s title filter reads it directly. The headline appears only in keyword search, and the result card shows roughly its first sixty characters.
- Title field: hard filter. Get it wrong and you never appear.
- Headline: keyword search only. About sixty characters are visible.
- Skills: LinkedIn’s second standardised entity. A skill typed as free text is not recognised.
- Location: the quiet filter applied to nearly every search.
Internal titles do not exist in search
Titles that make sense inside a large company are not what anyone types into a search box. “Head of Business Excellence” explains what you do internally and is invisible externally. This is the most common failure mode among senior profiles: legible inside, unsearchable outside.
Measurable results do not help you get found
Worth saying plainly: “cut commissioning time by 28% in eighteen months” will not surface you in any search. Nobody puts 28% in a Boolean query. That sentence has a different job — changing the decision in the six to ten seconds after your card is opened. Keeping the two apart is what tells you where to spend effort.
The second half of search: ranking
Once the hard filter is passed, a learning-to-rank model takes over. LinkedIn’s published work describes that model as personalised: two recruiters typing the same query do not get the same order, because the model accounts for each recruiter’s own history.
There is something freeing in that. You do not have a fixed rank, so there is no rank to optimise. What you can control is entering the list at all — the filter fields — and being legible enough once you are in it that the card gets opened. Chasing the ranking itself is not measurable work.
Filling in the skills field properly
Skills are the second field LinkedIn standardises, and the most commonly misused. A skill typed as free text is not recognised by search; it has to be selected from the platform’s own list. In practice:
- Open three live postings for your target title and pull out the skill names that repeat.
- Add those names by selecting them from LinkedIn’s dropdown — not your own phrasings of them.
- Pin the three to five most directly tied to the target title; those are what surface on the card.
- Remove old skills from fields you no longer pursue. A long list dilutes the signal.
- Attach each skill to the relevant experience entry so it is visible where it was used.
After the card opens
Being found and being contacted are two different jobs. Filters put you in the list; what gets the card opened is the narrow strip visible in the results screen — name, first line of the headline, current title, location. This is where the headline actually earns its keep: those first sixty characters are the only thing separating you from the other fifteen people on the list.
Once the card opens, the first thing read is the opening two lines of the About section. That space is not for a career summary but for a one-sentence account of what you do. Quantified results belong here too — not in search, but in the few seconds where the decision is actually made.
When to update
A profile is not a page that needs constant editing. The filter fields — title, skills, location — get updated when they genuinely change. Once a year it is worth checking whether the market’s name for your target role has shifted; titles like “Business Partner” can drift in meaning within a few years in a given sector.
What we cannot measure
In fairness, there are things this piece cannot tell you. LinkedIn does not publish the ranking model’s weights; no figure has been released for how much profile completeness affects search; and no independent measurement could be found for the effect of a photo, recommendations or connection count on recruiter search. Advice quoting precise percentages in those areas has no source.
Questions
- How much does my LinkedIn headline matter for search?
- The headline is not read by LinkedIn Recruiter’s title filter; it appears only in keyword search, and the result card truncates it at roughly sixty characters. It matters, but less than the title field in your experience section.
- Should I change my internal job title?
- Put the market equivalent in the title field of your experience entry. You can explain the internal naming in the description. The field that makes you findable is the title field.
- How many skills should I list?
- At least five, and pick them from LinkedIn’s dropdown rather than typing free text — search only recognises standardised skills. Pin the three to five most relevant to your target title.
- Can I improve my ranking in recruiter search?
- There is no fixed rank. LinkedIn’s published work describes the ranking model as personalised to each recruiter, so the same query returns different orders for different people. What you can control is entering the list — the filter fields.
- Do profile photos or connection counts affect search?
- No LinkedIn statement or independent measurement could be found on this. Advice quoting precise figures has no source. The fields with measurable effect are title, skills and location.
- How often should I update my profile?
- Update the filter fields only when they genuinely change. Once a year, check whether the market’s name for your target role has shifted.