What Is Passive Voice and Why Does It Hurt Content?
Passive voice occurs when the subject of a sentence receives the action rather than performing it: "The article was written by an expert" (passive) vs. "An expert wrote the article" (active). In content writing, excessive passive voice creates weak, indirect prose that reduces reader engagement and perceived authority. Google's Helpful Content system evaluates writing quality as part of content scoring — consistently passive, bureaucratic writing is a characteristic of low-quality, thin, or AI-generated content that Google actively devalues.
Passive Voice and Readability Scores
Flesch-Kincaid and other readability formulas penalize passive constructions because they increase sentence complexity without adding meaning. Industry guidelines recommend keeping passive voice below 10% of sentences for optimal readability. Microsoft's Flesch-Kincaid implementation (used in Word and Outlook) flags passive sentences in readability reports, and Yoast SEO's content analysis does the same for blog posts. Active writing scores measurably higher across all major readability metrics.
Using the Passive Voice Checker
Paste your article, product description, or any text into the checker. The tool detects common passive constructions using pattern matching across five categories: be-verb + past participle, have/has/had + been + past participle, modal verb + be + past participle, and related patterns. Results show your passive sentence percentage, a highlighted view of all passive sentences in context, and a list of specific sentences to rewrite. Aim for under 10% passive for professional content, under 5% for high-impact copy like landing pages and product descriptions.
How to Convert Passive to Active Voice
The formula: identify who is performing the action, make that person/entity the subject, and restructure. "The domain was acquired by the investor" → "The investor acquired the domain." "Mistakes were made" (missing agent — red flag) → "Our team made mistakes." Sometimes passive is appropriate: when the agent is unknown, irrelevant, or when you want to emphasize the receiver of the action. Scientific writing often uses passive deliberately. For most marketing, SEO, and editorial content, however, active voice is always preferable.
Passive Voice and E-E-A-T Signals
Google's quality guidelines associate authoritative expertise with confident, direct writing. Authors who clearly state opinions and conclusions using active voice ("I recommend X because Y") demonstrate experience and conviction. Passive voice obscures authorship and responsibility ("X is recommended") — a writing pattern associated with low-trust, aggregated content. For YMYL content especially, shifting to active voice is a concrete step toward improving E-E-A-T signals at the content level.