How can i block the below URLs

[MasonBaker]

Google indexed plugins pages for my website. Please check below. How can stop them to be indexed on google.?

http://www.ayurjeewan.com/wp-content/plugins/LayerSlider/static/skins/glass/

http://www.ayurjeewan.com/wp-content/plugins/LayerSlider/static/skins/borderlesslight3d/

http://www.ayurjeewan.com/wp-content/plugins/LayerSlider/static/skins/defaultskin/

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My robots.txt file is -

User-agent: *
Disallow: /wp-admin/

[GPainter]

Take a look over here - http://www.robotstxt.org/robotstxt.html and we can't forget the Moz version - http://moz.com/learn/seo/robotstxt

Alternatively you can just add meta noindex on the pages with with the added bonus of letting link juice flow better as well as being a bit more stern to robots ( recommend the noindex tag!)

[TomRayner]

It's also worth remembering that blocking a URL in a robots.txt file does not automatically mean that the URL will be deindexed.  The robots.txt file will prevent robots, such as the Googlebot, from seeing or accessing the file and that's all.  Now obviously, if a robot repeatedly tries to access a file and gets denied it will eventually stop trying to, which is what leads to the file being deindexed (the same principle applies to 404 and 410 errors).

Therefore, if you want a quicker and more definite deindexing solution, you should use the explicit noindex robot command, as recommended above.  This will tell any visiting robot to not index it straight away, which will reduce the number of revisits and drop the page from the index faster.

[ColeLusby]

robots.txt:

Disallow:

/wp-admin/

/wp-content/plugins/

Then, deindex them as mentioned in the first response.