Guides

Plain answers about AI writing, detectors and search.

Six guides built on published research, the platforms' own documents and a few small tests of our own. Every claim carries a source and a date, and each guide says where the evidence runs out.

Guides
6
Sources cited
51
Last checked
Oct 2026
Featured · Search

Does Google penalize AI content? What Google actually says

Google’s position fits in one line of its own spam policy: pages made at scale to manipulate rankings are spam “no matter how it’s created”. Here is what each document says, with dates.

7 min readUpdated

Read the guide

The AI writing guide

Instructions to paste into your AI before it drafts, so the draft needs less rewriting. Free to copy, or download it as Markdown.

Read the guide .md

All guides

Writing, editing, detection, search.

Writing

How readers spot AI writing: the structural tells

The habits that give AI copy away, measured: restated closes, summary sections, announced theses. Plus what human posts have that AI drafts lack.

6 min readUpdated

Writing

Why every brand starts to sound the same with AI

AI help makes each draft better and the whole set more alike, and models now write more like each other than like people. What stays yours.

5 min readUpdated

Editing

When a rewrite changes your facts: how to check AI edits

AI rewrites and humanizers can turn 14 days into 14 weeks. A field-by-field method to check numbers, units, names, links and modal verbs.

5 min readUpdated

Detection

Why AI detectors disagree, and what they actually measure

Statistical tools, trained classifiers, watermarks, structure and expert readers each measure something different. Why scores are signals, not proof.

7 min readUpdated

Comparison

IntactVoice vs NaturalWrite: a fair comparison

API prices, word limits, API design and data handling for IntactVoice and NaturalWrite, from each company's public pages, dated, including where NaturalWrite wins.

6 min readUpdated

How we write these

  • Every number links to its source, with the date we read it.
  • Each guide has a limits section. Small or vendor-run studies are labelled as such.
  • We don't promise detector or search outcomes, for our product or anyone's.
Our research page

Write with AI and keep it yours.

IntactVoice rewrites drafts toward a writer's own habits, checks the facts against the source, and shows detector signals before and after.

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