Cloaking in SEO is a deceptive technique that presents different content or URLs to human users and search engines. Cloaked pages shows one set of content to search engine crawlers for indexing purposes and a different set to users for engagement. For instance, a search result that appears to be a page about cat food can take you to an online casino.
This practice is considered a violation of search engine guidelines and is one of the many tactics of black-hat SEO.
At its core, cloaking involves serving content based on the visitor’s identity. When a search engine bot visits a site, cloaked content is optimized for high search rankings, often stuffed with keywords and phrases. In contrast, human visitors are presented with different content, usually more user-friendly but not necessarily relevant to their original search query.
Cloaking can be implemented in several ways. One common method is based on IP addresses. The server detects the visitor’s IP and determines whether it belongs to a known search engine. If so, it delivers the bot-optimized content; if not, it shows the standard user-targeted content.
Search engines like Google have strict guidelines against cloaking because it compromises the integrity of search results. The primary aim of search engines is to provide users with the most relevant, useful content. Cloaking manipulates this objective by misleading both the search engine and the user.
The consequences of cloaking can be severe. Search engines, upon detecting cloaking activities, may penalize the website by lowering its rankings or, in extreme cases, removing it from the search index entirely. This action can drastically reduce the website’s visibility and organic traffic, impacting its credibility and business potential.
Identifying cloaking can be challenging, but there are tools and methods to detect it. One approach is to compare the content indexed by a search engine (e.g. via Google’s cached result) with that served to users. Tools like Google Search Console can help webmasters see how Googlebot views their pages. Significant discrepancies between these views and what users see may indicate cloaking.