GOOGLE SEARCH DATA ON CRAWLING, INDEXING & SERVING TIMELINES

Summary from the TLDR Marketing newsletter

Google shared new internal data on how long crawling, indexing, and serving processes typically take. New URLs take about 20 hours to be discovered while known URLs take about 30 days to refresh. End-to-end indexing takes about 1.5 hours when processes run normally but can stretch to months or never. Title and snippet updates typically take 1-2 days, while site moves take 1-3 months. Core update recovery can take 3-6 months. Delays can stack because each process depends on the ones before it.