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Both are supported by all crawlers which respect webmasters wishes. Not all do, but against them neither technique is sufficient. You can use robots.txt rules for genera ... Voir Plus
On the most basic level, neither the meta robots tag or the Robots.txt has authority over the other – but rather the “noindex” request has authority over the “index” requ ... Voir Plus
Meta Robots tag is much better as it helps in forcing the search engine crawlers not to index and display the hidden pages in your server.
Metadata is data (information) about data. The tag provides metadata about the HTML document. Metadata will not be displayed on the page, but will be machine parsable. M ... Voir Plus
Personally I think the meta tag is even more useful than the robots.txt file. The robots.txt file is intended to PREVENT bots from spidering files in the first place. ... Voir Plus
There is no real "MAJOR" difference between the files. They both do the same work however the META tag is not as reliable as the .txt This is because I think (c ... Voir Plus
