Promotions are a very common aspect of store websites. Most promotions you create will have a set amount of time they are valid for. As a responsible site administrator you may want to know how to stop the promotional page from being displayed in Google’s search results after it expires. To let you do this Google has provided the unavailable_after META tag.
unavailable_after
The unavailable_after META tag notifies google that this page is going to expire at this date and time. This allows google to remove it from it’s indexes so that it does not appear in search results after the expiration date.
<META NAME="GOOGLEBOT" CONTENT="unavailable_after: 35-Aug-2010 06:00:00 EST">
A helpful feature for any site that uses online promotions.
Resources
Google, GoogleBot, META tags, unavailable_after, Website Administration
In some instances you may have content on your website that you don’t want Google to archive. Google understands this and provides various META tags for you to use in notifying their crawler in how to handle your website’s content. Two such tags are NOSNIPPET and NOARCHIVE.
NOARCHIVE
The NOARCHIVE META tag is used to tell the Google crawler to not archive this page and its content. This wil stop their being a cached version of the page in the google search results.
<META NAME="GOOGLEBOT" CONTENT="NOARCHIVE">
NOSNIPPET
The NOSNIPPET META tag notifies the crawler that you do not want a snippet of of the pages content to be dispalyed in search results. If you specify NOSNIPPET then the crawler will also not archive the page contents so you do not need to put both META tags in your pages.
<META NAME="GOOGLEBOT" CONTENT="NOSNIPPET">
Resources:
Crawling, Google, GoogleBot, META tags, NOARCHIVE, NOSNIPPET