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Why am I seeing so many non-indexed pages in Google Search Console?

New to Indiegraf? Seeing "Not Indexed" spike in Search Console is normal. Learn why ghost URLs and redirects cause this temporary SEO symptom.

Moving to a new platform is a major "surgery" for a website. Seeing your Not Indexed count double while your Indexed count stays flat can definitely feel like your SEO isn't doing well, but it’s actually a very common symptom of a migration.

Why this happens: Google doesn’t swap URLs instantly. It discovers the new ones while still remembering the old ones.

When you migrate, you aren't just adding pages; you are changing their DNA (the code, the structure, or the URLs). Here is why that number is spiking:

  • Ghost URLs: Google still has your old platform's URLs in its "to-crawl" list. Since those pages now redirect, Google moves them into the Not Indexed category.

  • Redirect Processing: Google marks the old URL as "Page with redirect." These are counted as Not Indexed, even though they are doing their job correctly.

  • Discovery Lag: Google has found your new pages but hasn't decided to index them yet, or it's still determining whether the new page is a "duplicate" of the old one.