The Velograph blog

Name	What it does	How long
`velograph.auth`Cookie · Velograph	Keeps you signed in.	60 days, renewed while you use Velograph
`velograph.2fa`Cookie · Velograph	Remembers who is signing in between the password and the code from the authenticator app.	5 minutes
`.AspNetCore.Identity.TwoFactorRememberMe`Cookie · Velograph	Skips the authenticator code on this device, only when you tick "Don't ask again on this device".	14 days
`.AspNetCore.Antiforgery.*`Cookie · Velograph	Protects forms against being sent from other websites.	Until the browser closes
`velograph.garmin`Cookie · Velograph	Holds a one-time code while you connect Garmin Connect.	15 minutes
`velograph.zwift`Cookie · Velograph	Holds a one-time code while you connect Zwift.	15 minutes
`velograph.cloud`Cookie · Velograph	Holds a one-time code while you connect a device maker such as Hammerhead, Wahoo, Polar or Suunto.	15 minutes
`velograph.staff`Cookie · Velograph	Keeps the visits of Velograph's own staff out of the visitor counts, also after they sign out. Only browsers where a member of staff has signed in get it.	400 days, renewed each month while staff use Velograph
`velograph.consent`Cookie · Velograph	Remembers your answer to the cookie question.	12 months
`vg-theme`Browser storage · Velograph	Remembers light or dark mode, when you pick one.	Until you change it
`vg-plan-clipboard`Browser storage · Velograph	Remembers which training sessions you copied on the calendar, so you can paste them in another tab or after reloading the page. It holds which sessions they are, not what is in them.	Until you copy others or clear it
`vg-tz-keep:*`Browser storage · Velograph	Remembers that you chose to keep your time zone when this device is in another one.	14 days
`sw.js`Service worker · Velograph	Shows browser notifications, only after you turn them on.	Until you turn notifications off

Coaching and teams7 October 2026 · 8 min read

Talent identification in cycling: what data can show

What power profiles, maturation, durability and Zwift Academy show about young cyclists, and why data should open doors while scouts and coaches decide.

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Training with data6 October 2026 · 8 min read

Cycling training zones: power and heart rate made simple

Coggan's seven power zones, heart rate zones from your threshold heart rate and the three-zone model, with worked numbers and what each zone trains.

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Coaching and teams6 October 2026 · 8 min read

Rider selection in cycling: picking a team with data

A sports director's guide to rider selection: match the course to power profiles, check form and durability, fill every role, then explain the choice.

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Training with data5 October 2026 · 9 min read

Watts per kilo: why climbers live by one number

On a steep climb, power per kilogram decides who reaches the top first. How W/kg, VAM and climb times connect, and where the number misleads.

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Bike fitting5 October 2026 · 8 min read

Bike fit and power: can a better fit make you faster?

What research shows about saddle height, cranks, comfort and aero, how to test a fit change properly, and why one-session miracles rarely hold up.

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Bike fitting5 October 2026 · 8 min read

Saddle pressure mapping: what the data shows fitters

How saddle pressure mats work, what they show about load, symmetry and movement, what they cannot measure, and a repeatable before-and-after protocol.

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Training with data4 October 2026 · 9 min read

Time trial pacing: how to ride a TT with power

Even power is the baseline; a few percent more on climbs and into the wind is the refinement. How to set targets, plan the course and review the file.

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Training with data3 October 2026 · 9 min read

Cycling nutrition: carbohydrate by the numbers

How many grams of carbohydrate per hour to take on the bike, why glucose plus fructose matters, how to train the gut and how to plan race fuel from kJ.

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