Cookie Library · Advertising
_gcl…
Records that you arrived from a Google ad, so a later purchase can be credited to that ad.
- Owner
- Google LLC
- Matches
- Any cookie whose name starts with
_gcl - Needed to Work
- No. The site works without it.
- Confidence
- Verified
- Source
- https://business.safety.google/adscookies/
- Last Reviewed
- 2026-09-13
Which Sites
Any site. The name is specific enough to identify this cookie wherever it appears.