4 ms·
They use distributed web crawlers to crawl 100s of billions of web pages. Probably one of the following options: 1) Built their own crawlers. 2) Using an Apac
by tconaugh 9y ago
They use distributed web crawlers to crawl 100s of billions of web pages. Probably one of the following options:
1) Built their own crawlers.
2) Using an Apache Nutch/Heritrix cluster in a colo facility.
3) Use 3rd party services like mixnode.