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SEO Multiple content values



SEO > SEO Multiple content values


Multiple content values
We recommend that you place all content values in one meta tag. This keeps the meta tags easy to read and reduces the chance for conflicts. For instance:

<META NAME=ROBOTS CONTENT=NOINDEX, NOFOLLOW>

If the page contains multiple meta tags of the same type, we will aggregate the content values. For instance, we will interpret

<META NAME=ROBOTS CONTENT=NOINDEX>
<META NAME=ROBOTS CONTENT=NOFOLLOW>

The same way as:

<META NAME=ROBOTS CONTENT=NOINDEX, NOFOLLOW>

If content values conflict, we will use the most restrictive. So, if the page has these meta tags:

<META NAME=ROBOTS CONTENT=NOINDEX>
<META NAME=ROBOTS CONTENT=INDEX>

We will obey the NOINDEX value.

Unnecessary content values
By default, Googlebot will index a page and follow links to it. So theres no need to tag pages with content values of INDEX or FOLLOW.

Directing a robots meta tag specifically at Googlebot
To provide instruction for all search engines, set the meta name to ROBOTS. To provide instruction for only Googlebot, set the meta name to GOOGLEBOT. If you want to provide different instructions for different search engines (for instance, if you want one search engine to index a page, but not another), its best to use a specific meta tag for each search engine rather than use a generic robots meta tag combined with a specific one. You can find a list of bots at robotstxt.org.

Casing and spacing
Googlebot understands any combination of lowercase and uppercase. So each of these meta tags is interpreted in exactly the same way:

<meta name=ROBOTS content=NOODP>
<meta name=robots content=noodp>
<meta name=Robots content=NoOdp>

If you have multiple content values, you must place a comma between them, but it doesnt matter if you also include spaces. So the following meta tags are interpreted the same way:

<METANAME=ROBOTS CONTENT=NOINDEX, NOFOLLOW>
<META NAME=ROBOTS CONTENT=NOINDEX,NOFOLLOW>

If you use both a robots.txt file and robots meta tags
If the robots.txt and meta tag instructions for a page conflict, Googlebot follows the most restrictive. More specifically:

If you block a page with robots.txt, Googlebot will never crawl the page and will never read any meta tags on the page.
If you allow a page with robots.txt but block it from being indexed using a meta tag, Googlebot will access the page, read the meta tag, and subsequently not index it.
Valid meta robots content values
Googlebot interprets the following robots meta tag values:

NOINDEX - prevents the page from being included in the index.
NOFOLLOW - prevents Googlebot from following any links on the page. (Note that this is different from the link-level NOFOLLOW attribute, which prevents Googlebot from following an individual link.)
NOARCHIVE - prevents a cached copy of this page from being available in the search results.
NOSNIPPET - prevents a description from appearing below the page in the search results, as well as prevents caching of the page.
NOODP - blocks the Open Directory Project description of the page from being used in the description that appears below the page in the search results.
NONE - equivalent to NOINDEX, NOFOLLOW.
A word about content value NONE
As defined by robotstxt.org, the following direction means NOINDEX, NOFOLLOW.

<META NAME=ROBOTS CONTENT=NONE>

However, some webmasters use this tag to indicate no robots restrictions and inadvertently block all search engines from their content.


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