Ad tech stocks
SCOR3.50▼ -13.15%SNOW306.38▼ -8.56%IHRT1.63▼ -8.19%APPS9.80▼ -7.02%PUBM16.65▼ -6.62%U40.65▼ -6.21%4755644.30▲ +5.40%SST2.11▼ -5.38%TTD12.45▼ -5.18%SNAP6.11▼ -5.12%MGNI23.32▼ -4.74%ZETA31.98▼ -4.68%APP266.50▼ -4.58%CDLX1.97▼ -4.37%INUV0.44▼ -4.11%META706.97▼ -4.04%MNTN10.08▼ -3.91%SFOR51.20▲ +3.85%035420180000.00▲ +3.69%CPNG14.28▼ -3.45%PERI8.79▼ -3.35%ILLM0.62▲ +3.33%CART49.46▼ -3.27%NFLX70.27▼ -3.22%TEAD0.40▼ -3.13%47511318.50▲ +3.09%WPP412.70▲ +3.07%PSKY9.78▲ +2.89%PINS22.07▼ -2.82%TBLA3.44▼ -2.68%43243839.00▲ +2.56%RDDT155.32▼ -2.53%BIDU80.58▼ -2.40%GOOGL340.90▼ -2.38%NEXN8.82▼ -2.27%IBTA47.83▼ -2.25%LFTO16.60▼ -2.01%CRTO15.45▼ -1.97%SPOT524.24▼ -1.71%STGW8.99▼ -1.58%DSP12.65▼ -1.52%BABA109.47▼ -1.49%HAVAS17.65▼ -1.40%VER11.64▲ +1.39%TRU73.12▼ -1.35%PUB102.45▼ -1.25%SIRI26.81▼ -1.25%24331403.00▲ +1.19%DEC25.86▲ +0.86%OMC80.03▼ -0.85%OUT30.20▲ +0.83%186010.90▲ +0.65%DV13.49▼ -0.37%SAX38.00▼ -0.37%ROKU154.17▼ -0.32%AZRN0.68▼ -0.29%RAMP37.45▼ -0.27%AAPL342.67▲ +0.20%CCO2.43▲ 0.00%0700417.80▲ 0.00%WBD30.95▲ 0.00%
Ticker byClearTrust

Safari Limits Server-Set Cookies to 7 Days on Cloaked Tracking Subdomains

· 1h ago · Originally reported by PPC Land

Safari has introduced a new restriction that limits the lifespan of server-set cookies to 7 days for tracking subdomains whose IP address does not closely match the main site. This targets techniques where trackers use separate subdomains to evade privacy controls.

Why it matters

This change makes it harder for advertisers and ad tech companies to track users across sites using hidden subdomains, strengthening user privacy and challenging common tracking workarounds.

Explain it like I’m new here

Safari is making it harder for sneaky websites to follow you by cutting off their tracking cookies after a week.

Read the original at PPC Land

Terms in this story

Related stories