Google Webmasters released a new video, where Matt Cutts talks about "Cloaking."
The video titled "definitive cloaking video" covers the following points:
- Cloaking is showing different content to users than GoogleBot
- Cloaking Violation of Quality Guidelines
- Cloaking is High Risk
- It Is Often Used For Deceptive Reasons
- No Such Thing Has White Hat Cloaking
- Details on what might be perceived as cloaking is mentioned in the video
- Why geolocation and mobile detection is not cloaking
"Cloaking refers to the practice of presenting different content or URLs to users and search engines. Serving up different results based on user agent may cause your site to be perceived as deceptive and removed from the Google index."
Some examples of cloaking include:
- Serving a page of HTML text to search engines, while showing a page of images or Flash to users.
- Serving different content to search engines than to users.
- Provide alt text that describes images for visitors with screen readers or images turned off in their browsers.
You can learn more in about "Cloaking" in the Help Center this article.