There’s a new manual action showing up in Google Webmaster Tools, according to Jessica Lee from Search Engine Watch. Webmaster Tools was updated over the summer so that site owners could be notified when a specific type of manual action had been taken against the site, and since then the waters have been fairly quiet. This new type of manual action, referred to as “image mismatch” is the first change we’ve seen since then.
If you see this message on the Manual Actions page, it means that some of your site’s images may be displaying differently on Google’s search results pages than they are when viewed on your site.
As a result, Google has applied a manual action to the affected portions of your site, which will affect how your site’s images are displayed in Google. Actions that affect your whole site are listed under Site-wide matches. Actions that affect only part of your site are listed under Partial matches.
If you end up receiving that message, it is up to you to ensure that your site is showing the same images to users both on your site and within Google image search results. It is possible “anti-hotlinking” tools can cause the issue, so you may have to look through your site’s code on the server.
As with all manual penalties, once the problem is fixed you have to submit your site for reconsideration and wait. And wait. And wait. Eventually, after you’ve waited for what seems like forever, you’ll get a message in your Webmaster Tools account informing whether the manual action will be revoked after review.
Manual actions are penalties at real, living Google employees have placed against your site after determining that you are violating Google’s guidelines. The majority of manual penalties have related to outright spammy practices such as user-generated spam, hidden text, and unnatural links.