Deeper dives

Re-roast and Diff Comparison

How to re-roast a page after making changes and use the diff comparison to measure exactly what improved and what still needs work.

Last updated May 10, 2026

What re-roasting is

Re-roasting lets you run a second (or third, or fourth) roast on the same page after you have made changes. PageScorch keeps every roast result and shows you a side-by-side diff between versions so you can see exactly what changed.

This turns PageScorch into a feedback loop rather than a one-time audit. You roast, fix, re-roast, and confirm the fix worked.

How to re-roast

From any completed roast result page, find the Re-roast button. This creates a new roast for the same page:

  • For screenshot roasts, you will upload a new screenshot of the updated page
  • For URL roasts, PageScorch fetches the current version of the URL

The re-roast runs through the same analysis pipeline and returns a new score, problem list, and fix suggestions.

Reading the diff

After re-roasting, PageScorch displays a comparison between the original roast and the new one:

Score change — the new score is shown alongside the original. An increase means the changes improved conversion readiness. A decrease (rare but possible) means something in the update introduced new problems.

Resolved problems — problems from the original roast that no longer appear in the new result. These are your confirmed wins.

Remaining problems — problems that appeared in both the original and the new roast. These are still affecting your score and need attention.

New problems — problems that appear in the new roast but were not in the original. This can happen when a redesign fixes one issue but introduces another.

What a good re-roast looks like

A successful round of fixes typically produces:

  • A score increase of 1–3 points
  • Several resolved problems (especially the high-priority ones)
  • A shorter remaining problems list
  • Possibly 1–2 new low-priority problems from changes elsewhere on the page

If the score did not move at all and no problems were resolved, the changes did not address the specific friction points the AI identified. Go back to the problem list and apply the high-priority items first.

Re-roasting vs starting a new roast

When you re-roast, the new result is linked to the original roast and shown in the diff view. If you start a completely new roast (e.g. by uploading a fresh screenshot from the main dashboard), it is treated as an independent roast with no connection to the previous one.

Use re-roast when you want to track improvement on the same page over time. Use a new roast when you are auditing a different page or want a clean baseline.

Re-roast and credits

Each re-roast uses one roast credit, the same as a standard roast. The diff comparison itself does not use an additional credit — it is displayed automatically once a re-roast exists.

Sharing the diff with clients

If you are doing agency work, the diff view is a useful deliverable. It shows the client measurable before/after evidence of the improvements made. You can share the result URL directly or include the score change and resolved problems in a client report.

See White-label reports and custom notes for how to customize reports before sending them to clients.