There is
White Hat SEO and Black hat SEO
An SEO tactic, technique or method is considered as White Hat if it follows the followings
- If it conforms to the search engine's guidelines.
- If it does not involves any deception.
- Good SEO content has three primary characteristics:
- Offers useful information presented in an engaging format to human readers
- Boosts search engine rankings
- Attracts plenty of links from other sites
Black Hat or Spamdexing
- Serving one version of a page to search engine spiders/bots and another version to human visitors. This is called Cloaking SEO tactic.
- Repeating keywords in the Meta tags, and using keywords that are unrelated to the site's content. This is called Meta tag stuffing.
- Creating low-quality web pages that contain very little content but are instead stuffed with very similar key words and phrases. These pages are called Doorway or Gateway Pages
- In April 2011, Google's algorithm change devalued keyword and keyphrase "spam" in favor of more nuanced means of determining a web site's value to viewers. This update sent ripples throughout the Internet.
