Spam Indexing is a practice of search engine spamming. Wherein websites created in a manner that will index with a top ranking in the search engines. Often, the SEO spamming practice used to manipulate the search engine’s understanding of a particular category, thus, indexing it for a higher position in the SERP. The aim of Spam-Indexing is to push up the website ranking in the Search Engine Results Page by using many Black-hat tactics.
Often, search engines index websites on the basis of Meta Tags, whereas others only look for web content and keywords in the URL or domain name. There are many techniques to spamdex a site. Including building superfluous backlinks or linking to higher ranked sites. Creating spam content that is a nonsense to the readers, but includes relevant keywords for search engine algorithm to detect and index.
Techniques of Spamdexing
There are various techniques used for website Spam-Indexing, categorized into –
- Content Spamming
- Link Spamming
Content Spamdexing – This includes:
Keyword stuffing – Spamming of the keyword to increase keyword count, density, and variety in the page.
Meta tag stuffing – Using unrelated and repeated keywords in the Meta tag.
Doorway/gateway pages – Process of using web pages that include little content and are more stuffed with similar keywords and phrases
Invisible or hidden unrelated text – Disguised keywords, in the same color as that of the background, included by adding small font size or hiding them within HTML codes such as ALT attributes, “no frame” sections, “no-script” sections, etc.
Scraper sites – These are also known as Made for AdSense sites and created by using different programs to scrape the Search Engine Result Page. Such types of sites are full of advertisements like pay-per-click ads. They also redirect the visitors to other sites.
Link Spam-indexing includes –
Hidden links – Highlighted link texts used to rank a page higher for relevant keywords.
Link farms – Using tightly-knit communities of web pages that refer to each other.
Spam blogs – The fake blogs, also known as spologs, developed only to spamming.
Sybil attack – Creating multiple sites with different domain names, all which link to each other.
Cookie stuffing – Adding affiliate-tracking cookie on a web visitor’s computer without his/her knowledge to generate revenues. This considered fraudulent affiliate sales.
Page hijacking – Creating a ditto copy of a popular website. Showing content in a similar manner to a web crawler. But redirecting the visitors to malicious or unrelated sites.
Many search engines can now detect this, and ban such sites indexed.