When I had a Blogger (Blogspot) blog, I noticed that it took 1-3 days for the content to be indexed by Google.
However, those days ago, I asked a question here in Stackoverflow which appeared less than 1 minute in Google.
What are the factors in the time it takes Google to crawl certain content on a site?
This question was inspired by this other How do Google understand my Links?
One of the key things that influence this indexing is what people call web semantics. In short, it is the act of giving the indexer patterns that demonstrate what you are reporting on each HTML element.
For this was developed in HTML 5 what we call microdata. In short, they are tags that help in identifying patterns and types. See:
This is an important factor for indexing to be more performative in addition to making user search more accurate. Allied to this we still have the volume of access to the particular site. This volume demonstrates how relevant the site is to the network, so the more relevant the sooner the site will be indexed.
