What are Coverage / Pages report errors in Google Search Console?

The Coverage report is now called Page indexing, found under Indexing > Pages. It splits the URLs Google knows into indexed and not indexed, and gives a reason for every page that is not. Some reasons are genuine errors that keep pages you want out of Google: server failures, broken redirects, blocked access. Others are Google working as intended. Fixing the report means telling the two apart, then fixing causes in templates rather than URL by URL.

The reasons that are real errors

A redirect error is worth a closer look even when the final page loads in a browser: Google's crawlers follow at most 10 redirect hops, and every hop costs a request.

The reasons that are usually fine

URL marked 'noindex', Page with redirect, Alternate page with proper canonical tag and Duplicate without user-selected canonical normally describe pages that should not be indexed in their own right. Check that each one is intended, then leave it. The two "currently not indexed" reasons sit in between: not errors, but worth reviewing if the pages matter. See excluded pages for that triage.

How to work through the report

1. Start with the pages that matter. Filter the report by sitemap so you see your important URLs rather than every stray parameter Google found.
2. Open a reason and look at the examples. The list shows up to 1,000 sample URLs, and is not always complete.
3. Inspect two or three URLs with the URL Inspection tool to confirm what Googlebot actually received.
4. Fix the cause where it lives, usually a template, a server rule or a redirect map.
5. Choose Validate fix. Google first rechecks a few sample pages and stops with Failed if the problem remains. Otherwise the status moves through Started and Looking good to Passed, which typically takes up to about two weeks.

Do not aim for every URL to be indexed. Google's own guidance is that "not indexed" is not necessarily bad, and that sites with fewer than 500 pages probably do not need this report at all. The page Google strongly recommends you make sure is indexed is your homepage.

For individual reasons in more depth, see 404 errors, soft 404, page with redirect and Crawled – currently not indexed.

How AutoPSEO helps

Search Console's inspection tool checks one URL at a time. AutoPSEO's URL Inspection takes a sitemap, a pasted list or a file of up to 500 URLs per run, within Google's quota of 2,000 inspections per property per day, and returns each URL's status, coverage state, last crawl date and whether Google's canonical matches yours, searchable and exportable as CSV. The Index Tracker repeats those checks daily for the pages you care about and lists every page that was lost from or added to the index, with the day it happened.

Sources: Google's Page indexing report help, HTTP status codes and Google's crawlers and URL Inspection API limits.