Review visual diffs, baselines and alerts in RenderLog

Start with a baseline, not with noise

A screenshot by itself only tells you what a page looked like once. Useful review starts when the team has an approved visual reference. That is what a baseline gives you: a known state that later runs can be compared against.

RenderLog lets a team promote a finished run to baseline and keep that decision tied to the same automation. The review stays grounded because everyone can see which image is current, which one is approved and what changed between them.

• A baseline marks the state the team has accepted.
• A new run becomes easier to judge because the reference is explicit.
• The decision is attached to the same page history, not scattered across chat or email.

Logs should answer the next question quickly

Good run history is not just an archive. It should answer the next question without sending the reviewer across several tools. Which automation ran, whether it succeeded, how long it took and which image is baseline should all be visible in one place.

This is also where review differs from pure rendering. A capture service can stop at the image. A review workflow needs enough context that another person can step in later and still understand the result.

Alerts should follow ownership

An alert helps only when somebody owns the page and knows what to do next. That is why alerts are strongest on pricing pages, onboarding flows, recurring client pages and other surfaces where a visible change should trigger a real decision.

When that ownership is missing, alerts turn into noise. The better order is to build the page history and baseline habit first, then add alerts where the review path is already clear. That is also why RenderLog fits shared page operations better than raw capture utilities.

• Use alerts where a visible regression should trigger action quickly.
• Avoid noisy alerting on pages that are intentionally unstable.
• Treat history and baselines as the foundation for alerts, not an optional extra.