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Error Scan

Error Scan opens the pages you track and lists JavaScript, CSS, and network errors. The home screen is a short Fix these list: the errors that can block a shopper, or that showed up since the last check.

Page Speed uses the same list of tracked pages. Saving pages in either feature updates both.

Choose pages​

  1. Open Error Scan and click Error Scan settings.
  2. Under Pages to track, keep The most important pages your plan allows, or pick Choose pages and turn on Homepage, Search and Cart if you want them.
  3. Set Products to All, Choose (pick products), Off, or Track products in selected collections.
  4. Set Collections, Shopify pages and Blog articles to All, Choose or Off.
  5. Use Pin a page if one page needs to be checked every time. Checkout and account URLs are rejected.
  6. Click Save in the Shopify save bar (Save configuration the first time).

If the catalog is larger than your plan, the screen says how many pages will not be checked. Narrow the selection or upgrade.

With Every page on every scheduled check, each page is checked on every run: a template page doesn't stand in for its products. Large stores can pick Key pages every day, every page every week under When pages are checked.

Schedule and on-demand checks​

Scheduled checks are Daily, Every 2 days, Weekly, or Manual only.

Check now uses a daily allowance of on-demand checks, one check per page, separate from Page Speed's. It resets at midnight in the store's timezone. When fewer checks are left than the pages you track, Check now checks your most important pages. When none are left, the button says so, and scheduled checks still run.

Read the list​

Fix now is something that can stop a purchase or that lives in the theme. Watch is everything else that still needs a look. Console warnings sit under Also seen.

Open an issue. When we can tell, the Details card names the Theme file and line, for example layout/theme.liquid:732. If the match is uncertain, it says Likely theme file.

Click Run AI analysis for the AI analysis card: What's wrong, Why it matters for sales, How to fix it, and Who fixes it. Each analysis uses one of the plan's monthly Error Scan AI reports. The file and line come from the error itself, not from that analysis.

Troubleshooting​

Error Scan is paused while your store has a password

  • A password-protected storefront can't be checked. Turn the storefront password off in Shopify. Checks start again on their own.