CORPUSCorpus Plan vs SEOmator
Both free audits are real. The difference starts after the findings.
SEOmator runs a genuinely free, no-email-wall audit — so do we, and we say so plainly. The comparison that matters is downstream of detection: who generates the files, writes the prioritized plan, monitors weekly, and puts traffic and research in the same place.
Every SEOmator claim on this page carries a numbered source — the full list, with access dates, is at the end. Where a fact is not published, the table says so; we don't guess.
Side by side
Feature by feature, with sources.
They detect; we detect and then do the next part. Corpus Plan generates the GEO artifacts, writes the worked plan, re-scans weekly with drop alerts, and puts Search Console traffic, capped keyword and competitor research, and grounded drafts in one $99/mo portal.
| What | Corpus Plan | SEOmator |
|---|---|---|
| Free audit — the gate | The unsaved report is a hook. The full report needs a free email-and-password account, no card. The report link lasts 30 days (permanent, with export and re-scans, once saved to that free account). 3 free audits per connection per day. | A free audit with no email wall. [1] |
| What the free tier includes | The unsaved report is a hook. The full report — five pillar scores (SEO, speed, trust, content, AI citability), every finding with the reason written out, and the prioritized plan — needs a free email-and-password account, no card. | 172 checks across 16 weighted categories on the no-signup audit; a free account adds full-site crawls (251 rules), history, scheduled re-runs and a Search Console connection. [1] |
| AI / GEO checking | AI citability is a scored pillar of every audit: llms.txt, JSON-LD structured data, AI-crawler rules in robots.txt, content extractability, question-shaped content, answer structure. The portal adds an AI-visibility check — one model, at one moment, labeled as such, never a promise of mentions. | Five GEO checks among the 172. [1] |
| Artifact generation | The portal generates the files, not just the findings: llms.txt (framed honestly — a proposed standard read today mostly by SEO and GEO audit tools, not AI crawlers, and cheap to publish), JSON-LD, robots rules for AI crawlers, FAQ suggestions, and grounded content drafts. | — not published on the page we checked. [1] |
| Worked plan | A prioritized worked plan built from your findings comes with the free report; the portal adds the 30/60/90-day version. | — not published on the page we checked. [1] |
| Monitoring | Weekly re-scans of every tracked site, with an alert when a score drops. | Scheduled re-runs with a free account. [1] |
| Traffic data | Search Console traffic inside the portal, next to the findings it relates to, plus capped keyword and competitor research. | Search Console connection with a free account. [1] |
| Pricing model | $99/mo flat for the portal, up to 10 sites, cancel anytime. No credits, no metering. | — no paid prices published on the page we checked. [1] |
| Methodology transparency | Published at /methodology: every finding code, threshold band and deduction, with its basis cited — rendered from the same constants the engine runs. Deterministic checks held to a suite of 470+ automated tests. | The audit page states the check count and weighted categories (172 checks, 16 categories); per-check thresholds — not published on the page we checked. [1] |
"Not published" means the sources below do not establish that fact — we say so rather than guess. And a comparison table changes nothing about the one thing no tool can do: neither column is a promise of rankings or AI mentions.
Fair is fair
Where SEOmator is strong
Real breadth, free: 172 checks in 16 weighted categories with no email wall, and the free account tier — full-site crawls against 251 rules, history, scheduled re-runs, a Search Console connection — is one of the most generous in the category. If detection is all you want, SEOmator gives you a lot of it for nothing. [1]
Sources
Every SEOmator claim, sourced and dated.
The numbered references in the table and above resolve here. Anything about SEOmator that these pages do not establish is marked "not published" on this page rather than guessed.
- https://seomator.com/free-seo-audit-tool — accessed 2026-09-02. SEOmator's free audit page: the no-email-wall audit, its 172 checks and 16 weighted categories including five GEO checks, and what a free account adds. No paid prices appear on this page.
SEOmator is a trademark of its owner. Corpus Plan is not affiliated with, endorsed by, or sponsored by SEOmator; the name appears here only to identify the product being compared, and no logos are used. Facts were verified on the dates shown above — if something here is outdated, contact Corpus Plan and we will re-check and correct it.
See for yourself
The unsaved report is a hook.
The full report needs a free email-and-password account, no card. Every check we run is published at /methodology.
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