When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Web crawler - Wikipedia

   en.wikipedia.org/wiki/Web_crawler

   A Web crawler starts with a list of URLs to visit. Those first URLs are called the seeds.As the crawler visits these URLs, by communicating with web servers that respond to those URLs, it identifies all the hyperlinks in the retrieved web pages and adds them to the list of URLs to visit, called the crawl frontier.

3. Crawl frontier - Wikipedia

   en.wikipedia.org/wiki/Crawl_frontier

   This activity is known as crawling. The policies can include such things as which pages should be visited next, the priorities for each page to be searched, and how often the page is to be visited. [citation needed] The efficiency of the crawl frontier is especially important since one of the characteristics of the Web that make web crawling a ...

4. Scrapy - Wikipedia

   en.wikipedia.org/wiki/Scrapy

   Scrapy (/ ˈ s k r eɪ p aɪ / [2] SKRAY-peye) is a free and open-source web-crawling framework written in Python. Originally designed for web scraping, it can also be used to extract data using APIs or as a general-purpose web crawler. [3] It is currently maintained by Zyte (formerly Scrapinghub), a web-scraping development and services company.

5. Search engine scraping - Wikipedia

   en.wikipedia.org/wiki/Search_engine_scraping

   Most commonly larger search engine optimization (SEO) providers depend on regularly scraping keywords from search engines to monitor the competitive position of their customers' websites for relevant keywords or their indexing status. The process of entering a website and extracting data in an automated fashion is also often called "crawling ...

6. Why is Aolbot-News crawling my page? - AOL Help

   help.aol.com/articles/aolbot

   Aolbot-News is designed to make reasonable requests that don't overburden websites. However, if you're concerned about site performance, you can restrict the pages that Aolbot-News crawls by disallowing crawling of certain subdirectories, or by slowing the rate that Aolbot-News crawls using a Crawl-Delay (specifies the minimum number of seconds ...

7. Focused crawler - Wikipedia

   en.wikipedia.org/wiki/Focused_crawler

   A focused crawler is a web crawler that collects Web pages that satisfy some specific property, by carefully prioritizing the crawl frontier and managing the hyperlink exploration process. [1] Some predicates may be based on simple, deterministic and surface properties. For example, a crawler's mission may be to crawl pages from only the .jp ...