Last updated: September 2, 2026
This page lists every cookie MCP Ads sets, what it is for, and how long it lasts. You can change your analytics choice at any time from the banner, or by clearing this site’s data in your browser.
Set regardless of your choice, because the site cannot work without them. No consent is required for these.
| Cookie | Purpose | Lasts |
|---|---|---|
mcp_session | Keeps you signed in. HttpOnly, Secure, SameSite=Lax. | 30 days |
utm_source, utm_medium, utm_campaign | Carry which campaign you arrived from across the Google sign-in redirect, which cannot preserve them itself. Set only when you start a sign-in. | 10 minutes |
ref_code | The same, for a referral link. | 10 minutes |
Your analytics choice itself is stored in your browser’s local storage, not in a cookie.
Nothing in this section loads until you choose “Accept analytics”. If you choose “Essential only”, these scripts are never fetched and set nothing at all.
| Cookie | Purpose | Lasts |
|---|---|---|
ph_* (PostHog) | Which pages and features get used, so we know what to improve. Hosted in the EU. | Up to 1 year |
datafast_visitor_id | Privacy-focused visit analytics, first-party. | Up to 1 year |
No advertising or retargeting cookies, no cross-site tracking pixels, and no selling of personal data. No cookies of ours are set on the white-label domains our agency customers run.
Accepting analytics means PostHog and DataFast process your visit on our behalf, as data processors. Our Privacy Policy lists the full set of processors and your rights over your data.
Clearing this site’s data in your browser brings the banner back. Rejecting also stops any analytics cookie that was already set from being read, because the scripts that read them are no longer loaded.
Questions about this policy? Email support@mcp-ads.com.