---
title: "What Is Intelligent Tracking Prevention (ITP)?"
description: "ITP is Safari's privacy feature that limits cookie lifespan and blocks cross-site tracking. It reduces first-party cookie life to 7 days or less."
canonical_url: "https://sealmetrics.com/glossary/intelligent-tracking-prevention/"
lang: "en"
content_type: "glossary"
owner: "content"
llm_priority: "useful"
last_verified: "2026-08-09"
source: https://sealmetrics.com/glossary/intelligent-tracking-prevention/
publisher: SealMetrics
---

Definition

# Intelligent Tracking Prevention (ITP)

Apple Safari’s privacy feature that limits cookie lifespan and blocks cross-site tracking. ITP reduces first-party cookie life to 7 days (or 24 hours when set via JavaScript with tracking query parameters) and blocks all third-party cookies.

## Impact on analytics

Safari holds approximately 20% of European browser market share (higher on mobile). ITP means that any visitor who returns after 7 days appears as a “new” visitor in cookie-based analytics — inflating new user counts and fragmenting user journeys.

For analytics that rely on cookies for session stitching and attribution, ITP makes accurate multi-visit tracking effectively impossible on Safari. Combined with Firefox’s Enhanced Tracking Protection (ETP), more than 35% of browser traffic is subject to aggressive cookie restrictions.

## Why first-party measurement is unaffected

[Cookieless analytics](https://sealmetrics.com/glossary/cookieless-analytics/) does not store cookies on the visitor’s device, so ITP and ETP have no effect on data collection. The [first-party cookieless](https://sealmetrics.com/glossary/first-party-data-collection/) approach captures sessions regardless of browser privacy features.

ITP can't expire what was never stored. See your Safari traffic counted in full, cookie-free.

[Book a demo](https://sealmetrics.com/demo/)[See pricing](https://sealmetrics.com/pricing/)

### Related concepts

- [Cookieless Analytics Web analytics that captures visitor data without using browser cookies, enabling 100% traffic measurement regardless of consent status or browser restrictions.](https://sealmetrics.com/glossary/cookieless-analytics/)
- [First-Party Data Collection Collecting analytics data through your own domain infrastructure rather than third-party servers. First-party requests are invisible to ad blockers and not subject to third-party cookie restrictions.](https://sealmetrics.com/glossary/first-party-data-collection/)
- [Data Loss in Analytics The gap between actual website traffic and what analytics tools report. Caused by consent rejection, ad blockers, browser restrictions, and data sampling. Typically 70-87% in the EU.](https://sealmetrics.com/glossary/data-loss-in-analytics/)
- [Ad Blocker Impact on Analytics The data loss caused by browser extensions and built-in features that block third-party analytics scripts. Ad blockers affect 40%+ of EU users, making analytics tools like GA4 blind to a significant portion of traffic.](https://sealmetrics.com/glossary/ad-blocker-analytics-impact/)

Learn more: [Cookieless Analytics Explained](https://sealmetrics.com/blog/cookieless-analytics-explained/) · [How SealMetrics Works](https://sealmetrics.com/how-it-works/)

Quick answer

Intelligent Tracking Prevention (ITP) is Apple Safari’s machine-learning-driven privacy system that caps first-party analytics cookies at 7 days, drops third-party cookies entirely, and shortens cookie lifespan to 24 hours when the cookie is set via JavaScript on a page that arrived with a tracking query parameter. Firefox ships an equivalent feature called Enhanced Tracking Protection (ETP).

For analytics that depend on cookies to recognise returning visitors or stitch multi-day attribution, ITP makes accurate measurement effectively impossible on the 20%+ of EU traffic that uses Safari. Cookieless first-party server-side collection sets no cookie, so ITP and ETP have no effect — every visit is counted on the same anonymous-aggregate basis regardless of browser, regardless of how many days have passed.