Do your pages sound like the same business?
It compares average sentence lengths across substantial pages.
What Check Engine measures
At least 5 indexable pages with at least 250 words and measured rather than estimated word counts are required, together with a supported prose language. Each page needs at least 5 usable sentences. Saved sentence lengths are preferred. The fallback splits up to 20000 characters of prose and keeps sentences with at least 3 words. A population standard deviation below 7.0 words per sentence stops the check. Larger spreads reach the finding. For example, a 250-word article still needs at least 5 usable sentences to enter the comparison.
The sample is substantial prose, not short product labels or every successful response. Pages lacking enough usable sentences do not supply an average.
How to read the result
The finding is low severity and identifies the shortest and longest sentence-length averages. It does not measure tone, verify authorship or decide whether a technical page should read like a contact page.
Why it matters
Sentence length is a narrow, visible part of writing style. A large spread can help you choose pages to review, while the purpose and audience of those pages still decide whether the difference is a problem.
How to fix it
Read passages from the pages at either end of the comparison. Break dense sentences where a reader would benefit and remove abrupt fragments that obscure meaning. Keep necessary terms and intentional differences between page types. Use the guide to review the whole passage instead of chasing an identical average on every page.
When your site sounds like several companies wrote it
What we found in field audits
Problems in Brand consistency were found on 13 of the 14 sites we audited. These are area totals. Read the field-audit method.
Method note
backend/seo_engine/checks/brand.py, voice_consistency, revision 0bb8e8d3.
Common questions
How long must pages be for the writing-voice comparison?
Each sampled page needs at least 250 words and enough usable sentences. Estimated word counts are excluded.
What sentence-length spread triggers the voice finding?
A standard deviation reaching 7.0 words per sentence can qualify. This compares page averages rather than every sentence individually.
Does a voice-consistency finding prove different people wrote the pages?
No. Its low severity reflects a sentence-length clue. The test cannot establish authorship or whether varied page roles justify the difference.