A theme push, app update, or “small” liquid tweak can break Add to cart or shipping presentation while Admin still looks fine. High-GMV stores cannot treat post-deploy QA as optional — or as a 10-minute manual stroll on one market.

Pin a known-good run

Friction Observatory lets you save a healthy audit as a theme baseline. After the next deploy, compare the new run to that baseline so regressions show up as deltas — health score, findings, and screenshots — not vague “something feels off.”

• Run a full multi-market audit when the store is known-good
• Save that run as the baseline
• After deploy, run again (or wait for the schedule) and compare
• Share the report PDF or share link with the theme / app vendor