Top "Google-crawlers" questions

"Crawler" is a generic term for any program (such as a robot or spider) used to automatically discover and scan websites by following links from one webpage to another.

Avoid crawling part of a page with "googleoff" and "googleon"

I am trying to tell Google and other search engines not to crawl some parts of my web page. What …

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Is including <meta name="fragment" content="!"> harmful for pages with hashbang?

Google says about this meta tag: The following important restrictions apply: The meta tag may only appear in pages without …

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Is it possible to control the crawl speed by robots.txt?

We can tell bots to crawl or not to crawl our website in robot.txt. On the other hand, we …

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Should I list PDFs in my sitemap file?

Should I add PDFs to my XML sitemap? I want to know if Google will crawl the PDFs.

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Does googlebot keep sessions when crawling?

When googlebot crawls pages does it have session? For example I am storing some variables on the session and using …

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Why do search engine crawlers not run javascript?

I have been working with some advanced javascript applications using a lot of ajax requests to render my page. To …

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Passing arguments to process.crawl in Scrapy python

I would like to get the same result as this command line : scrapy crawl linkedin_anonymous -a first=James -a …

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