Official statement
If 503 errors last more than a few days, URLs may drop out of the index because Google considers it a persistent server error. Recovery requires a new crawl, which can take a few days to a week. For important pages, use the URL Inspection tool to manually submit.
Other statements from this video 26 ▾
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Official statement from
(4 years ago)
⚠ A more recent statement exists on this topic
Why Is Your Google Crawl Suddenly Dropping and How Can You Fix It?
View statement →
TL;DR
Extended 503 errors can cause URLs to be removed from Google's index. Recovery is possible but requires a new crawl. Use URL Inspection for your crucial pages.
🎥 From the same video 26
Other SEO insights extracted from this same Google Search Central video · published on 18/12/2021
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