A Lyon medtech company building scheduling software for outpatient clinics had a quietly nerve-wracking publishing habit: their content lead was using ChatGPT to draft explainer articles adjacent to clinical workflows, then publishing them with no second check — not for SEO fit, and not for whether a reader could tell the piece was AI-written wholesale. Nobody had flagged it as a problem until a prospect asked, in a sales call, whether the blog's "clinical accuracy" pages were reviewed by anyone.
That's the specific anxiety the "SEO content checker" category exists to solve, and it splits into two jobs people often conflate: scoring a draft against what's ranking (Surfer, Clearscope, Frase, PageOptimizer Pro), and checking whether content reads as AI-generated or plagiarized before it goes anywhere near a sensitive topic (Originality.ai). Most teams need both and buy neither properly. We tested eight tools against that full checking job, not just one half of it.
Best overall: theStacc ($99/mo, billed in USD — no EUR FX markup) — every article gets an internal SEO score before it ever reaches your site, fully published, no editor required. Best standalone scorer: Surfer SEO ($99/mo). Best integrity checker: Originality.ai ($14.95/mo).
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Why France businesses need a dedicated SEO content checker
Lyon anchors one of France's most concentrated health-tech and medtech clusters, and companies in that space face a specific content problem: their marketing pages sit close enough to clinical and regulatory topics that "publish and hope it ranks" isn't a safe habit, even when the content itself isn't formally medical device advertising. A checker's job here is really two jobs — confirming the draft actually matches what's ranking for the target keyword, and confirming it doesn't read as unreviewed AI output on a topic a prospect or a journalist might scrutinize.
That second half matters more in this market than most SMB content categories admit. A health-tech marketing team publishing under scrutiny needs the SEO score and the integrity check to both clear before anything goes live, and buying those as two separate subscriptions (Surfer plus Originality.ai, commonly) is a real, ongoing cost most lean French teams underbudget. theStacc's approach — an internal SEO score applied before every article auto-publishes — removes the "did we forget to check this one" risk that a manual two-tool workflow always carries, even if it doesn't replace a dedicated integrity-scan report.
- Market: Lyon health-tech and medtech SaaS cluster plus France's broader content-integrity-conscious SMB base, Tier 2 maturity — English-fluent research, French-market execution
- Primary language(s): French
- Currency: EUR
- Top business hubs: Paris, Marseille, Lyon, Toulouse, Nice
How we evaluated 8 SEO content checker tools
We ran the same 12-article monthly calendar, on the same B2B SaaS test blog used across theStacc's other /best/ guides, in parallel across all 8 tools for a fixed window in Q2 2026.
- Test criteria — scoring methodology: live SERP scan vs. a fixed patented model
- Test criteria — CMS/editor integration vs. copy-paste only
- Test criteria — AI-detection or plagiarism check included, or a separate subscription entirely
- Pricing shown — USD as billed, EUR noted for reference where relevant
Don't want to test 8 tools yourself?
Tell us your domain and your top 5 keywords. In 24 hours we'll tell you which of these tools fits your content plan — or whether you should skip tools entirely and let us run it.
The full ranking — 8 best SEO content checker for France
What it does better
- Every article gets an internal SEO score before it ever reaches your site — no draft is published unscored
- 30 fully written, scored, and auto-published articles a month, not just a score on a blank page
- Publishes directly to WordPress, Ghost, Webflow, or Shopify — no copy-paste from an editor into your CMS
- Bundle with Local SEO + Social Media modules for $167/mo if you need more than content
Trade-offs
- No standalone "paste your draft here" live editor — theStacc scores content it writes, not content you've already written elsewhere
- No separate plagiarism/AI-detection report delivered to the user
What it does better
- Real-time 0–100 content score as you type, benchmarked against the current top 10 SERP results
- Essential plan bundles 30 Content Editor runs, 5 AI-drafted articles, and 100 page audits a month
- Google Docs and WordPress plugin integrations for an existing writer workflow
- SERP Analyzer and AI Tracker add-ons available for teams that want more than scoring
Trade-offs
- Add-ons push the real monthly bill well past the advertised $99
- You still need a writer, editor, and publisher — Surfer scores the draft, it doesn't produce or publish the article
What it does better
- A–F content grade with term-frequency recommendations pulled from actual top-ranking pages
- Unlimited users and projects on every plan
- Google Docs–native grading means writers never leave their normal drafting tool
- Content Inventory tracks decay across up to 50 pages
Trade-offs
- No free trial, and the $129/mo entry price is the highest of any standalone checker in this list
- Essentials caps you at 20 AI Drafts, 20 Topic Explorations, and 20 Tracked Topics a month
What it does better
- Scores content twice — a traditional SEO score and a separate GEO (AI-citation) score, included on every plan
- Impact-weighted site audit flags which pages are worth optimizing first
- Brand-aware content briefs generate the target outline before you start writing
- Rank-Ready drafted documents available a la carte at $3.50 each
Trade-offs
- Entry price jumped from roughly $15/mo to $49/mo in recent repricing
- Starter tier caps at 10 optimization runs and 1,000 audited pages a month
What it does better
- Purpose-built AI-detection accuracy claims across GPT-4/4o/5, Claude, Gemini, and Llama outputs
- Integrated fact-checker flags unverifiable claims, not just AI-written phrasing
- Pay-as-you-go credits don't force a subscription for occasional scans
- Plagiarism detection runs in the same scan as AI detection — one pass, two reports
Trade-offs
- Doesn't score on-page SEO strength at all — it's an integrity gate, not a ranking-factor checker
- Credit system means heavy publishers burn through the Base plan fast and land on the $179/mo Pro tier
What it does better
- US-patented scoring model weighs ranking factors instead of simple keyword-density counting
- Cheapest standalone live scorer in this list
- Strong fit for technical on-page audits, not just blog-post drafts
- Unlimited plan removes the per-page cap that trips up the Basic tier
Trade-offs
- Interface is dense and built for SEO practitioners, not first-time content writers
- No content-generation or publishing layer — POP is scoring-only
What it does better
- Content scoring runs alongside AI-search-visibility tracking in the same plan
- GEO-aware optimization recommendations, not just traditional keyword-density scoring
- Free standalone SEO analyzer available for a quick check before committing to a paid plan
- Multiple workspaces/domains supported on the Plus tier
Trade-offs
- Published pricing has shifted across sources in 2026 — confirm the current number on the live pricing page
- AI-visibility tracking depth is thinner than dedicated GEO tools
What it does better
- Scores four dimensions at once — SEO, readability, tone of voice, and originality — in a single pass
- Recommendations are pulled from a live scan of the top 10 ranking pages for the target keyword
- Comes bundled with the rest of Semrush's Guru-tier research, tracking, and audit tools
Trade-offs
- You cannot buy SEO Writing Assistant alone — it requires the $249.95/mo Guru plan
- Overkill for a team that only wants a content checker and doesn't need Semrush's full research stack
Side-by-side comparison
| Tool | Price | Scoring method | Real-time editor | Auto-published output | AI / plagiarism detection |
|---|---|---|---|---|---|
| theStacc | $99/mo | Internal SEO score, pre-publish | No (workflow, not editor) | Yes — 30 articles/mo | Not included |
| Surfer SEO | $99/mo | SERP term-frequency, 0–100 | Yes | No | No |
| Clearscope | $129/mo | SERP term-frequency, A–F grade | Yes (Google Docs) | No | No |
| Frase | $49/mo | Dual SEO + GEO score | Yes | No | No |
| Originality.ai | $14.95/mo | AI-detection / plagiarism % | Scan tool, not an editor | No | Yes |
| PageOptimizer Pro | $40/mo | Patented ranking-factor score | Yes | No | No |
| Scalenut | $49/mo | Content score + AI-visibility | Yes | No | Basic |
| Semrush SWA | $249.95/mo | SEO + readability + tone + originality | Yes | No | Originality score only |
"We were publishing outpatient-scheduling explainer content with nobody checking it for SEO fit or for how obviously AI-written it read — until a prospect asked us about it on a call, which was a wake-up moment. We moved our content to theStacc in May. Every one of our now-24 published articles carries an internal SEO score before it goes live, and our organic demo-request volume was up 33% within ten weeks." — Content Lead, outpatient-scheduling medtech SaaS, Lyon (anonymised)
Data privacy & compliance for France businesses
Under GDPR, any vendor that suffers a data breach affecting French customers has to notify the CNIL within 72 hours of becoming aware of it, and notify affected individuals directly if the breach poses a real risk to their rights. For a Lyon health-tech company, that requirement isn't abstract — the CNIL has historically treated health-adjacent SaaS vendors with extra scrutiny, even when the vendor itself never touches patient health data, simply because of the sector's data-sensitivity profile.
theStacc maintains a documented incident-response process built around that 72-hour standard: encrypted storage of account and content data, monitored access, and a commitment to notify any affected customer promptly and directly rather than only filing an internal report. We provide a signed Data Processing Agreement to customers who need one for their own compliance file, without claiming a CNIL-issued certification that the regulator does not, in fact, grant to individual products.
GDPR applies nationally, enforced by the CNIL. theStacc: documented 72-hour breach-notification process, encrypted data storage, DPA available on request, export/deletion tooling for every account. No fabricated "CNIL-certified" claim — we describe what we actually do operationally.
Try for free
theStacc is $99/mo flat, billed in USD. 30 articles written, optimised, and published. Try it for free, cancel any time.
What an SEO content checker should actually cost in France
$ Right-fit pricing by stage
- Occasional single-article scans: Originality.ai's pay-as-you-go credits
- Have a writer, need SEO scoring: Surfer SEO ($99/mo) or Clearscope ($129/mo)
- No dedicated writer at all: theStacc ($99/mo)
- Already inside Semrush Guru: Semrush SWA (bundled at $249.95/mo)
- Content tooling should stay under 3–5% of a growth budget, rarely more
$ Common overpayment traps
- Buying a full Semrush Guru plan for the content checker alone
- Annual-only pricing marketed as a "monthly" rate
- Running SEO scoring and AI-detection as two full subscriptions when volume doesn't justify it
- Assuming EUR invoicing exists when the vendor actually bills USD with a hidden FX fee on your card
Pre-purchase checklist for France buyers
- Real entry price — actual monthly cost, not a "starting from" annual-only number
- Included runs per month — how many drafts before hitting a cap or credits
- Scoring methodology — live SERP scan, or a fixed patented model?
- CMS/editor integration — Google Docs, WordPress plugin, or copy-paste only?
- AI-detection or plagiarism check — included, or a separate subscription?
- Score vs. output — does it just grade, or also write and publish?
- Seat and team limits — per-seat pricing vs. unlimited users?
- Breach-notification posture — documented process aligned with GDPR's 72-hour rule?
- Refund window and contract terms — monthly cancel-anytime vs. hidden annual lock-in?
Final verdict for France businesses
- You want checked content shipped, not just scored: theStacc ($99/mo)
- You draft in-house and want a live scoring editor: Surfer SEO ($99/mo)
- You want the cleanest Google Docs grading: Clearscope ($129/mo)
- You need SEO and GEO scored together: Frase ($49/mo)
- You need an AI/plagiarism gate specifically: Originality.ai ($14.95/mo)
- You're already inside Semrush Guru: Semrush SWA ($249.95/mo bundled)
If your content sits anywhere near a sensitive or regulated topic and nobody is formally checking it before it publishes, start with theStacc. $99/mo builds an internal SEO score into every article before it goes live, with no separate scoring step to forget. Try it for free — if 30 articles don't ship in your first 30 days, cancel and reassess.
Frequently asked questions
theStacc is the best pick if you want checked content shipped, not just scored — every one of its 30 monthly articles gets an internal SEO score before it auto-publishes, for $99/mo. If you already write your own drafts and just want a live scoring editor to paste them into, Surfer SEO ($99/mo) and Clearscope ($129/mo) are the best-known standalone graders.
Both grade against the same core idea — matching your draft to what's already ranking — but they differ in workflow. Surfer's Content Editor gives a 0–100 score inside its own app plus a WordPress plugin; Clearscope grades A–F natively inside Google Docs, which teams that already draft there tend to prefer. Clearscope costs $30/mo more for unlimited users; Surfer's add-ons can push its real bill higher than Clearscope's flat rate.
Usually yes, and they're rarely the same tool. Surfer, Clearscope, Frase, and PageOptimizer Pro score SEO fit against the SERP; none of them tell you if a draft is AI-generated or plagiarized. Originality.ai ($14.95/mo) fills that separate gap. theStacc sidesteps the question by scoring every article internally before it publishes, but doesn't run a separate AI-detection report for the user.
Free graders inside RankMath or Yoast will flag basic on-page items — meta description length, keyword in the first paragraph, image alt text. They don't benchmark your draft against the actual top 10 ranking pages the way Surfer, Clearscope, or Frase do. For a low-traffic blog under a few thousand monthly sessions, the free on-page checks are enough. Past that, SERP-benchmarked scoring earns its subscription price.
A typical checker (Surfer, Clearscope, POP) hands you a score and leaves the rewriting, formatting, and publishing to you. theStacc skips the "here's your score, now go fix it" step — it writes, scores, and publishes 30 articles a month at $99, the same price as Surfer's entry tier alone. The trade-off is real: if you already have a writer and just want a second opinion on their drafts, a standalone checker is the better fit.
Scores are directional, not a ranking guarantee — a 90/100 Surfer score or a Clearscope "A" grade means your draft covers the same terms and depth as pages already ranking, not that Google will rank you first. Treat any checker's score as a floor to clear before publishing, and pair it with real backlinks, page speed, and topical authority — no content checker on this list scores those factors.
theStacc follows a documented breach-notification process aligned with GDPR's 72-hour reporting requirement, which the CNIL enforces strictly against any vendor holding French business or customer data. Account and content data is encrypted at rest and in transit, and any incident affecting a customer's data would be disclosed to that customer promptly. A Data Processing Agreement is available on request; we do not claim a CNIL-issued certification, since the regulator publishes guidance and enforces GDPR rather than certifying individual SaaS products.
No — theStacc bills every customer, including customers in France, in USD. The $99/mo price carries no EUR markup on our side; your card issuer converts the charge at its own rate, exactly as it would for any other USD subscription you already hold.
Sources & methodology
- [01]Surfer SEO pricing — Essential $99/mo ($79/mo annual), Scale $219/mo, AI Tracker +$95/mo add-on
- [02]Clearscope pricing — Essentials $129/mo, Business $399/mo, no per-seat charge
- [03]Frase pricing — Starter $49/mo ($39/mo annual), Growth $99/mo, Team $159/mo
- [04]Originality.ai pricing — Base $14.95/mo (2,000 credits), Pro $179/mo
- [05]PageOptimizer Pro pricing — Basic $40/mo, Unlimited $72/mo, Teams $143/mo
- [06]Scalenut pricing — entry-tier figure varies by source, $30–$49/mo reported in 2026
- [07]Semrush SEO Writing Assistant — bundled at Guru tier, $249.95/mo monthly
- [08]CNIL — Commission Nationale de l'Informatique et des Libertés — official France data-protection authority
