Last updated 20 April 2026.

The short version

Analytics (optional). When Google Analytics is enabled (controlled by the NEXT_PUBLIC_GA_ID build variable) a small set of _ga* cookies helps us count how many people visit each page. We cannot identify you from this data.
Theme preference. The theme-preference cookie stores whether you picked light, dark, or system. It never leaves your browser.
Consent. The devdocs.cookies.accepted value in localStorage remembers that you clicked the "Accept" button so we don't re-prompt you.
No ad tracking. We don't set or accept third-party ad cookies — no Facebook Pixel, no Google Ads, no LinkedIn Insight.
Vercel Web Analytics. Our host sets a small first-party _vercel_* cookie to de-duplicate page views. It contains no personal identifiers and never leaves Vercel.

Detail

What each cookie does

_ga, _ga_*, _gid — Google Analytics visitor & session identifiers. Lifespan: up to 2 years. Set only when analytics is enabled in production.
theme-preference — your chosen color scheme. Lifespan: 1 year. First-party only.
devdocs.cookies.accepted — consent flag, stored in browser localStorage (not a true HTTP cookie). Lifespan: until you clear browser storage.
_vercel_* — Vercel Web Analytics session identifiers. First-party only, no personal identifiers. Lifespan: end of session.

Turning analytics off

You can opt out in a few ways:

Install the Google Analytics Opt-out Browser Add-on.
Block third-party scripts using your browser's tracking-protection feature (enabled by default in Firefox, Safari, and Brave).
Enable “Do Not Track”. We respect it: if your browser sends DNT: 1, we do not load analytics scripts even when they are otherwise enabled.

Changing or withdrawing consent

Clear your browser storage for devdocs.work (or use Incognito/Private Browsing) and the consent banner will re-appear on your next visit. You can also email privacy@devdocs.work and we’ll confirm deletion of any data we hold for you.

See our Privacy Policy for the full picture of what data we collect and how we use it.

Questions

privacy@devdocs.work.