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A crawler is a computer program with the purpose to visit web sites and do something with the information on it.
Many crawlers crawl for search engines to index whatever page they visit. Such crawlers often return several times per day to check for updates.
Another use is to gather information such as mail addresses or something that suits the owner. This kind of crawlers check all the links on the page and visit them after the information collection, and in this way never stopping but keep crawling all over (the public parts of) the Web.
What else can I help you with?
How many type of crawler?
There are primarily three types of crawlers: general-purpose crawlers, which index a wide range of web pages; focused crawlers, which target specific topics or types of content; and incremental crawlers, which revisit previously indexed pages to check for updates or changes. Each type serves different purposes in web indexing and data retrieval.
When was The Crawlers created?
The Crawlers was created in 1954.
When was The Sky Crawlers created?
The Sky Crawlers was created in 2001.
When was Creepy Crawlers created?
Creepy Crawlers was created in 1964.
How does one raise night crawlers?
How do you raise night crawlers
What is the duration of The Sky Crawlers?
The duration of The Sky Crawlers is 2.02 hours.
When was The Carpet Crawlers created?
The Carpet Crawlers was created in 1975-04.
What are the release dates for Creepy Crawlers - 1994 Sugar Frosted Crawlers 1-2?
Creepy Crawlers - 1994 Sugar Frosted Crawlers 1-2 was released on: USA: 22 October 1994
What are the release dates for Creepy Crawlers - 1994 The Night of the Creepy Crawlers 1-1?
Creepy Crawlers - 1994 The Night of the Creepy Crawlers 1-1 was released on: USA: 4 October 1994
Why are night crawlers used for fishing?
because the fish are attracted to the worms movement and smell
What are the release dates for Creepy Crawlers - 1994 The Incredible Shrinking Creepy Crawlers 2-9?
Creepy Crawlers - 1994 The Incredible Shrinking Creepy Crawlers 2-9 was released on: USA: 30 March 1995
What is the standard used by websites to communicate with web crawlers and other web robots?
The standard used by websites to communicate with web crawlers and other web robots is called the Robots Exclusion Protocol, often implemented through a file called robots.txt.
