For example, if pages are to be externally linked. However, page URLs can still end up in the index. robots.txt is particularly suited to prevent the indexing of non-relevant HTML pages. Or, it could be that not all pictures in a folder should be indexed. This could be the case, for instance, when there are test pages on the webserver that are not yet ready for the public. The instructions request the crawler to not execute indexing for certain pathways. Not all webserver contents should appear in a search engine index. But established search engines do observe the instructions.īut why should I disallow crawlers access to parts of my domain? If there is no organic traffic to a site, this could be the reason.Īs long work is being done in a test environment and the data should not yet be found, it is useful to not index complete indexes.Ĭrawlers from dubious providers usually are not influenced by /robots.txt. If you want to respond to the crawler, use the following expression: User-agent: *īe careful, with disallow/ you block: / all robots from the entire domain. The /robot.txt file generally looks like this: # robots.txt for User-agent: – determines which crawler should apply for the following instructionsĪllow/disallow: – determines the file or the index The /robots.txt file primarily uses two instructions: Most of the crawlers follow the /robots.txt file, but it is more a suggestion, not an order. It explicitly allows which crawlers may search which pages/sections on a domain. The /robots.txt is like a ‘ bouncer‘ for search engine crawlers. Which ones these are and how they can be used. I will be covering 3 methods for influencing the indexing for your site. But there are ways to keep an index clean and counteract this. Duplicate content quickly occurs due to technical problems or the ubiquitous ‘ human factor‘, which is is all to common. The goal, of course, is to deliver only relevant HTML pages to the engine.
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