Web Experiment Bucketing ID Shared Across Subdomains
UpdateUnverifiedAdded Sep 25, 2026
Under the hood, web experiment maintains its own device_id (stored as web_exp_id and web_exp_id_v2 ) to use for bucketing, instead of using Amplitude Analytics' device id.
More releases
Every release| Date | Release | Type |
|---|---|---|
| Jul 15 | Web Experiment: Cross-subdomain experimentationunverified Update | Update |
| Jul 15 | Event group property improvementsunverified Update | Update |
| Jul 16 | Clickable image linksunverified GA | GA |
| Jul 17 | Attribution parameters as event properties - now on by default in the Browser SDK + GTMunverified Update | Update |
| Jul 21 | Last Non-Direct Attribution in Data Tablesunverified Update | Update |
| Jul 22 | Metric Explorer Chartunverified Beta | Beta |
| Jul 24 | Resource Center: search term highlighting and autoscroll in articlesunverified Update | Update |
| Jul 24 | Resource Center: open directly to a specific article via the SDKunverified Update | Update |
Also shipped on Jul 13, 2026
in July 2026
Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.