SEO Content Grader
Grade any draft for SEO: score out of 100, grade A+ to F, missing terms, and structure notes. Free for authors.
Grade before you publish
Search engines reward content that fully answers a query. This grader checks your draft against what an editor would look for: the right terms, a clear structure, and enough depth to be genuinely useful.
How to use it
Enter your target keyword (e.g. "book publishing packages"), paste up to 8,000 characters of your draft, and hit Grade my draft. You get a score, a grade, missing terms to weave in, and structure notes.
Why use this SEO Content Grader instead of asking ChatGPT or Claude?
Chatbots are great for ideas. This tool is for getting the job done — here's what changes when you use it instead of pasting your text into a chat app.
| Compared to a chatbot | This tool | ChatGPT / Claude |
|---|---|---|
| Speed | Instant. No prompt, no preamble, no waiting. | Type a prompt, wait for a long reply, read through it. |
| Privacy | Runs in your browser. Nothing gets uploaded or stored. | Your text is sent to and stored by a third party. |
| Format | Consistent, copy-ready output every single time. | Different style and structure every session. |
| Signup | None. Open the page and go. | Account required, limits and paid tiers involved. |
| Cost | Free. Unlimited with Tools Pro ($4.99/mo, all 18 tools). | Free tier with limits, or $20+/mo for full access. |
Use a chatbot to brainstorm. Use this tool to finish the job — then publish with Harmony when the book is ready.
Frequently asked questions
How does the SEO grader work?
Paste your draft and a target keyword. The AI editor scores the draft on keyword use, term coverage, structure, and depth — then gives an A+ to F grade with concrete fixes.
What is a good SEO grade?
Aim for B or higher (70+). C means your draft covers the topic but misses terms readers and search engines expect; D/F means it needs real expansion.
Is this really free?
Yes — 3 free grades per day, no account needed. Tools Pro removes the limit for unlimited grading.
Want an editor's eye on your whole book?
Harmony Publishing packages include professional editing that tightens every page — you keep 100% of royalties.
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