No professional SEO expert can afford to do without Google’s Webmaster tools. With Google being the dominant search engine that netizens use to find your sites, Google’s webmaster tools allow you to track how often and how much of your website the Google spiders are downloading.
Also, you can maintain a “sitemap” of your website that [...]

A Crawler that runs multiple processes in parallel is a parallel crawler.
It aims towards maximizing the download rate and in this process, it minimizes the overhead from parallelization to prevent repeated downloads of the same page.
The Crawling system requires a policy to avoid downloading the same page twice. The policy assigns the new URLs discovered [...]

Gifted with a powerful and dynamic nature, the process of web crawling may consume a good amount of time (months or weeks). Many events such as creations, updates and deletions occur during the process of web crawling. According to a search engine, there is a cost related to not deleting an event. Freshness and age [...]