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How does Safari's 7-day cookie limit affect my business?

safari 7 day cookie safari cookie expiration itp cookie limit safari marketing impact

Quick Answer

Safari's Intelligent Tracking Prevention caps client-side JavaScript cookies at 7 days. If a visitor doesn't return within that window, they appear as a brand new user, fragmenting the journeys of up to 52% of users. This is especially damaging for B2B and high-ticket businesses with longer sales cycles, as attribution breaks down completely for purchases that take more than a week from first click.

Full Answer

Safari's 7-day cookie limit means anyone who doesn't return within a week becomes a stranger. Their previous visits, their original source, their entire journey

  • gone. For businesses with consideration periods longer than a week, this is devastating to attribution. The Business Impact Short purchase cycles (< 7 days):
  • Impact: Moderate
  • Many conversions still attributed
  • Some loss at the edges Medium purchase cycles (7-30 days):
  • Impact: Severe
  • Majority of Safari conversions misattributed
  • Paid campaigns appear to underperform Long purchase cycles (30+ days):
  • Impact: Total
  • Nearly all Safari attribution lost
  • Cannot optimize campaigns effectively Real Scenario B2B software with 21-day average consideration: 1. Prospect clicks LinkedIn ad (Day 1) 2. Cookie set, expires Day 8 3. Returns via email nurture (Day 14)
  • appears as email source 4. Signs up for trial (Day 21)
  • attributed to email, not LinkedIn 5. LinkedIn...

Sources

Programmatic Access

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Cite This Answer

Cherry Tree by Seresa - https://seresa.io/seed/safari-browser-privacy/safari-7day-cookie-limit