How does an internet search work? Do they get slower for each new internet page created or are there mecanisms to avoid that?
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The search engine couldn’t search all websites each time someone puts in a search word. Instead, it creates a list of all words or phrases it finds on every webpage, and next to each word it writes down the links to every webpage containing that word. Now if someone puts in a search term, the search engine can simply check its list and immediately give you your search results. Such a list is called an index. The search engine will visit all websites on a regular basis in order to see if something’s changed. This is called crawling.
Does internet search get slower for each new internet page? Well, updating the index will take longer each time a new website is created. Looking up something in the index will also take longer if the index gets bigger. However, servers get faster and faster, and database systems probably keep getting more efficient. So I doubt this would be noticeable.
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