# Cookie notice

Last updated: 19 May 2026

This notice explains the cookies and similar technologies we use on wia.io. It complements our [privacy notice](/content/legal/privacy/index.html), which covers personal data more broadly.

## What is a cookie?

A cookie is a small text file a website stores in your browser. We also use related technologies - local storage, session storage, pixel beacons - to deliver and improve the site. In this notice we use the word “cookie” loosely to cover all of them.

## Categories we use

**Strictly necessary**  
Required for the site to function. Cannot be switched off without breaking pages.

**Analytics**  
Help us understand how the site is used in aggregate. You can opt out without affecting site functionality.

**Preferences**  
Remember choices you have made - for example, whether you have already seen the cookie banner.

## Cookies we set

| Name                   | Provider               | Category             | Duration        |
|------------------------|------------------------|----------------------|------------------|
| next-route-announcer    | wia.io                 | Strictly necessary    | Session          |
| ph_*                    | PostHog (eu.posthog.com)| Analytics            | Up to 12 months  |
| wia_consent            | wia.io                 | Preferences          | 12 months        |

### next-route-announcer

Used by the Next.js framework to announce client-side route changes to assistive technologies. No personal data leaves the browser.

### ph_*

Anonymous usage analytics - which pages are visited, how long sessions last, which features get used. We use PostHog in EU residency so the data stays in the EU. No cross-site tracking or advertising profile is built.

### wia_consent

Stores your cookie preference so we do not ask again on every page. Set only after you make a choice in the cookie banner.

## Opting out

You can:

- Decline non-essential cookies in the banner that appears on your first visit. Your choice is remembered for 12 months.
- Block cookies at the browser level using your browser’s privacy settings. Each major browser publishes instructions - Chrome, Safari, Firefox, Edge.
- Opt out of PostHog analytics directly. PostHog respects the Global Privacy Control header and the Do-Not-Track signal.

Strictly necessary cookies cannot be turned off without breaking the site. We do not use cookies for advertising or cross-site tracking.

## Changes

We update this notice when the set of cookies changes - typically when we add or remove a service provider. The latest version is always at this URL, with the date at the top reflecting the last revision.

## Contact

Questions about cookies on wia.io? Write to [privacy@wia.io](mailto:privacy@wia.io).