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What is crawler | What is Web Crawler and How Does It Work?

Do you ever wonder which search engine leads? It's attractive, isn't it? The way some systems can systematically browse the World Wide Web for web indexing or web spidering… #What #is #crawler what is crawling in seo Playlist link :    • What is Digital Marketing? | Full Cou...   Yes you are right A #cricket player is exactly what we are talking about !!! This is an #internetbot, Also known as #webspider, #automaticindexer, #webrobot or just #crawler… Guess what else, web crawlers can do? Don't be surprised, its works: 1. Update the indices of your web content or web content of other sites 2. Copy all visited pages for subsequent processing by search engines that will index downloaded pages to provide lightning-fast searches 3. Automate maintenance tasks on a website, such as checking links or validating HTML code ... Do you know the popular open source web crawler? Here is the list: 1. Spud 2. Apache Nach 3. Heritrix 4. HTTack What is crawler How web crawler works: By theory, let's jump right How web crawler works: 1. Select a starting seed URL or URL 2. Add it to Frontier 3. Now select URL from Frontier 4. Get the web page corresponding to that URL 5. Parse that web page to find new URL links 6. Add all newly found URLs to the frontier 7. Go to step 3 and repeat until marginal emptying What is crawler Did you see what's happening here? Amazing, isn't it? It's amazing how search engines work, Websites update their content or Do their maintenance but… The way web crawlers do this is more amazing… do not you think so ???