Blog
Field notes on reaction time, memory, and cognitive performance — written by the team building the Deadline benchmark. Practical, no-fluff guides to help you read your own scores.
What Is a Good Reaction Time?
A good score on a browser visual test is usually 200–250 ms — but device, display, input, sleep and attention all move the number. Here’s how to read yours.
Read the guideCognitive Benchmark Tests
What a cognitive benchmark measures, and the eight free browser tests Deadline uses for reaction, memory, aim and processing speed.
ReadHuman Benchmark Alternative
A fast, free alternative for cognitive benchmark games — reaction time, memory, aim and typing — with your score ranked against real players.
ReadAverage Reaction Time by Age
How fast people actually react across the lifespan — a study-backed age table, percentiles, gender data, and gamer benchmarks.
ReadWhat Is a Good Number Memory Score?
Most adults stall at 7 digits. What counts as average, good, and elite — and the research behind the ceiling.
ReadHow to Improve Reaction Time for Gaming
What actually shaves milliseconds off your reaction time — sleep, warmup, monitor latency, caffeine — and what just sells products.
ReadReaction Time Percentiles
A percentile tells you where you sit in the crowd, not whether your score is "good." Here is how the reaction time distribution is actually shaped, and how to read your own rank inside it.
ReadIs Your Reaction Time Good?
You hit a number on a reaction test and want to know where it lands. Here is a plain verdict for each common score — 150 through 300 ms — with the age context that changes the answer.
ReadHow to Improve Reaction Time
Reaction time is trainable, but most of the gains come from boring fundamentals, not brain games. Here is what the evidence actually supports, and where to start measuring.
ReadAverage Reaction Time for Gamers
Gamers are measurably faster than non-gamers, but the gap is tens of milliseconds, not the half-second some sites claim. Here are the real numbers, with sources.
ReadF1 Driver Reaction Time
The viral "0.04 second" clips are not what they look like. Here are the actual numbers, why the FIA stopped penalizing fast starts, and how a normal human stacks up.
ReadAverage Chimp Test Score
Most people stall around level 6 on the Chimp Test. The "8-12" figures floating around the internet usually measure something else. Here's the honest reconciliation, plus the chimpanzee working-memory study the test is named after.
ReadGood Visual Memory Score
The Visual Memory test makes you memorize a grid of lit squares that grows every level. Here is where average, good, and elite scores actually fall, and what your level says about visuospatial memory.
ReadGood Digit Span Score
The honest answer separates two things people constantly conflate: the raw span you get from a quick web test, and the WAIS scaled score a clinician reports. Here is how both work, and what counts as good.
ReadDoes Caffeine Improve Reaction Time?
Yes, but the effect is small and most reliable when you are fatigued. Here is the actual size of the gain, the dose that produces it, and when it peaks.
ReadIs Lumosity Worth It?
The short version: Lumosity will reliably make you better at Lumosity. Whether it makes you better at anything else is where the science, and a 2016 FTC settlement, get uncomfortable.
ReadDoes Dual N-Back Work?
The honest answer from 15 years of replication attempts: you get good at n-back, and not much else. Here is what the controlled studies actually show.
ReadSee where your scores actually land
Reaction, memory, aim, and typing — eight free browser tests, ranked against real players. Two minutes, no signup.