The honest answer is: not much, and then, if you are lucky, everything.
Eye-tracking research on professional recruiters puts the first look at a resume at somewhere between six and seven and a half seconds. That number is real, it comes from an actual study, and it is also almost always misunderstood, including by people who cite it correctly.
Where the number comes from, and what it actually measures
TheLadders ran a formal eye-tracking study on professional recruiters in 2012, tracking where their eyes went and for how long while reviewing resumes (announcement here). The result was six seconds. They repeated it in 2018 with updated technology and got 7.4 seconds (summarised here), a small increase that mostly tells you the number was never precise to the decimal in the first place.
Two things matter more than the exact figure.
First, the sample was small, on the order of a few dozen recruiters. That is enough to spot a real pattern. It is not enough to treat six seconds as a law of physics that applies to every recruiter, every industry, and every CV that lands on a desk.
Second, and this is the part that gets lost every time the number is repeated: it measures the initial sort, not the total attention a CV gets. It is the glance a recruiter gives while triaging a stack, deciding which ones go in the “read properly” pile and which do not. The resumes that survive that glance get a great deal more than six seconds. The ones that do not, get less.
Averaging those two very different things together is what produces a tidy number that describes neither of them well.
What that first glance is actually for
Having done this job, I can tell you what the six seconds is spent on, because it is not random and it is not really about reading.
It is a sort, not a review. The question being answered is not “should I hire this person.” It is “does this CV belong in the pile I come back to.” That is a much lower bar, and it is decided almost entirely on a handful of things: the most recent job title, the most recent company, how long they were there, and whether the shape of the page makes it obvious where to find the answer to those questions in the first place.
A CV that answers “what is this person, and have they done this before” without making the reader hunt survives the glance. A CV that is technically complete but makes the reader work to extract the basic facts does not, regardless of how good the candidate actually is underneath. That is not fair, exactly, but it is not really about fairness. It is what happens when one person has to sort several hundred of these before lunch.
What earns a second look
The CVs that get pulled out of the pile tend to do a few things in common:
The first thing on the page is the thing that matters most for this role. Not necessarily the most recent job by date. If someone has ten years of experience and the last eighteen months were an unrelated detour, the CV that leads with the detour is working against itself.
The title and company are easy to find and easy to read. This sounds too simple to matter, and it is the single most common thing that goes wrong. A creative layout that disguises where the job title actually is costs candidates far more than a boring layout ever does.
It looks like it was made for this job, not for jobs in general. A recruiter who has seen the posting knows roughly what they are looking for, and a CV that visibly speaks to it reads as effort rather than luck. This is also, not coincidentally, the entire premise of tailoring your CV to the specific role rather than sending the same one everywhere.
What kills it in six seconds
Making the reader hunt for the basics. If where someone works now, and what they do there, is not obvious within the first few lines, most of the glance is spent finding information that should have been immediate.
A wall of text with no hierarchy. Not because recruiters are lazy, but because six seconds genuinely is not enough time to read paragraphs. It is enough time to scan a structure.
Nothing that connects to the job at all. A CV that reads like a general biography rather than an argument for this specific role gives the glance nothing to grab onto.
None of this is really about the applicant tracking system, which is a separate piece of software doing a separate job. That part is mostly a myth too. This is about the much older, much less avoidable fact that a human being with limited time has to make a fast call.
What happens after the six seconds
This is the part that almost never gets mentioned alongside the statistic, and it is the part that should actually change how you think about it.
A CV that survives the glance does not get six more seconds. It gets minutes. It gets read properly, sometimes twice, often by more than one person. The six-second number describes the door, not the room. Most of the effort people put into a CV is aimed at the room: polishing sentences, perfecting phrasing, agonising over word choice throughout. Almost none of it is aimed at making sure the CV gets through the door in the first place.
Both matter. But if you only have time to fix one, fix the door.
What this means in practice
Put the most relevant title and company where the eye lands first, not buried under a summary paragraph nobody has time to read yet. Make the shape of the page do work: clear sections, not a wall of paragraphs, so the six-second scan finds structure instead of prose. And treat every application as worth shaping to the specific posting, because the recruiter on the other end has read the same posting and is, whether they realise it or not, scanning for the parts of your history that answer it.
The six seconds is real, and it is also not really about you. It is about whether a tired person doing a repetitive task all day can find the shape of your career fast enough to keep going. Make that part easy, and the part that is actually about you gets the minutes it deserves.