Let’s expand on keyword stuffing’s definition by exploring the two types of keyword stuffing: Visible Visible keyword stuffing is when the “stuffing” is visible to users. You can see an example of this below: “Expedite your mornings with aluminum coffee pods. With these aluminum coffee pods, making coffee becomes fast and easy. Purchase your aluminum coffee pods today and bring more sunshine to your mornings!” In the example above, we’re keyword stuffing with aluminum coffee pods. Hidden Hidden keyword stuffing is when the “stuffing” is invisible to users. People will hide keywords by: Matching text and background colors Placing text behind images Positioning text off-screen Using small, unreadable font sizes With this black-hat SEO tactic, users don’t “see” the keywords, but search engines do. Previously, this tactic was effective for ranking in organic search results, but search engines have become skilled at detecting this spammy practice.