What is Spam?
Spam includes unsolicited messages of any kind, such as emails and web pages meant to manipulate algorithms. Email spam breaches CAN-SPAM legislation if unsubscribe options are not clearly displayed. Search spam includes techniques like keyword stuffing, doorway pages, and hidden text, which dilute the quality of the results. Search engines have webmaster policies to highlight and punish spamming practices. Evasion of spam bolsters safety for users, trust, and SEO standing.
Examples of spam include, but are not limited to, sending bulk unsolicited promotional emails, creating doorway pages filled with repetitive keywords, and text masquerading as graphics to hide its color for search manipulation.
Related terms: black-hat seo, spam, keyword stuffing, CAN-SPAM, spamdexing.