Amazon’s keyword policies exist to maintain the integrity of its search results and prevent authors from gaming the system at the expense of reader experience. Violating them can result in your book being suppressed, your metadata being rejected, or your account being flagged. This article covers every category of prohibited keyword and what to use instead. For the full keyword strategy, see our complete guide to Amazon KDP keyword research.

Why Amazon Prohibits Certain Keywords

Amazon prohibits keywords that would mislead readers, unfairly target competitors, claim false status, or violate Amazon’s own intellectual property. The underlying principle: keywords should help readers find books that genuinely match their search. Any keyword that puts a book in front of readers who did not ask for it — because it falsely claims to be a bestseller, or because it appears in searches for a completely different author’s books — degrades the search experience for readers and disadvantages authors who play by the rules.

The Prohibited Keyword Categories

1. Competitor names and titles. You cannot include other authors’ names or book titles in your keyword fields. Trying to appear in searches for “Richard Osman mystery” or “Thursday Murder Club style book” by including those names as keywords is explicitly prohibited. You can describe your book as appealing to readers who like a certain style of book — but without naming the competitor.

2. Amazon programme and product names. “Kindle Unlimited,” “KDP Select,” “Amazon Prime,” “Prime Reading,” and similar Amazon brand terms are prohibited. Including them does not improve your ranking and can trigger compliance review.

3. Promotional and quality claims. Terms like “bestseller,” “#1,” “award-winning,” “top-rated,” “best,” “greatest,” “must-read” are prohibited in keyword fields. These are claims rather than descriptions, and Amazon treats them as misleading metadata.

4. Misleading or false information. Keywords that describe content your book does not contain — including them to capture tangentially related searches — are prohibited. If your romance novel has no paranormal elements, “paranormal romance” in your keywords misrepresents your book.

5. Time-sensitive or temporary information. “New for 2025,” “just published,” “limited time,” “summer reading list” — time-specific claims become false as time passes and are prohibited.

6. Offensive or inappropriate terms. Any keyword that could be considered offensive, hateful, or inappropriate is prohibited.

7. Other authors’ pen names. Even if a pen name does not belong to a specific person (e.g., a well-known published pseudonym), using it as a keyword to target that author’s audience is a violation.

Consequences of Using Prohibited Keywords

The consequences range from minor to severe depending on the violation:

• Metadata rejection: Amazon’s automated systems may reject your book during publication review for prohibited keywords, requiring you to correct the metadata before publication can proceed.
• Book suppression: Books already published that are identified as containing prohibited keywords may be suppressed — removed from search results — until the metadata is corrected.
• Account flag: Repeated or serious violations can result in your KDP account being flagged for closer review, which may affect your ability to publish new titles normally.
• Account suspension: In serious cases, accounts that repeatedly or deliberately violate keyword policies can be suspended.

Grey Areas

Some keyword situations are not clearly prohibited but exist in grey territory:

Genre comparisons: “Fans of British detective fiction” (no specific author named) is generally acceptable. “Fans of Richard Osman” uses a competitor name and is prohibited. The line is between genre descriptions and specific competitor references.

Award references: Stating an award in your description (“Winner of…”) is acceptable. Including an award name as a backend keyword may be treated as a promotional claim. If your book has genuinely won an award, note it in the description rather than the keyword fields.

Legitimate Alternatives

For every prohibited approach, there is a legitimate alternative:

• Instead of competitor names: use genre, subgenre, and tone descriptors that accurately describe your book’s style
• Instead of “bestseller”: let your cover, description, and social proof in the Editorial Reviews section signal quality
• Instead of misleading keywords: spend the time researching legitimate long-tail phrases that accurately describe your book — there are always more than enough available

Generating 100 legitimate, policy-compliant keyword ideas for your specific book is what KDP Rank Fuel‘s Keyword Goldminer is built to do — all phrases are genre-appropriate, reader-language accurate, and compliant with Amazon’s keyword policies.

Your keywords operate within Amazon’s rules. Your manuscript should operate at the highest possible standard. Manuscript proofreading before publishing from Vappingo ensures the book your compliant keywords lead readers to is error-free and professionally prepared.