Free On-Page SEO Analyzer

What this free SEO analyzer checks

This on-page SEO checker inspects the 17 elements that most influence how a page ranks — the same checklist I work through at the start of every client audit. Instead of a wall of jargon, every result comes with a plain-English explanation of what's wrong and exactly how to fix it, sorted so you always know what to fix first.

• Search snippet elements — title tag length and quality, meta description, and whether Google can index the page at all (a stray noindex tag is more common than you'd think).
• Content and structure — a single clear H1, a logical heading outline, sufficient content depth, and descriptive link anchor text instead of "click here".
• Technical signals — canonical tag, HTTPS, mobile viewport, language attribute and favicon.
• Rich results and sharing — JSON-LD structured data (schema), Open Graph tags and Twitter card, so your page looks right in search results, social feeds and AI answers.
• Images — missing alt text, which hurts both accessibility and your visibility in image search.

How to use it

1. Paste any page URL — your homepage, a service page, a blog post, or a competitor's page — and hit Analyze.
2. Read the score and the "Fix these first" list. Those two or three items are where the impact is; everything else can wait.
3. Fix, re-run, and watch the score climb. Then repeat for the pages that matter most to your business.

Why on-page SEO still matters

Google has gotten smarter, but it still reads your page the same way: the title tells it what the page is about, headings give it the outline, and structured data removes the guesswork. When those signals are missing or contradictory, even great content underperforms. On-page fixes are also the rare part of SEO that's fully in your control — no waiting for backlinks, no algorithm luck. Most of the issues this tool finds can be fixed in an afternoon.

Want to know how visible your site is to AI search engines like ChatGPT and Perplexity too? Run the companion AI Search Visibility Checker, or browse the SEO Prompt Library for the prompts I use to fix the issues this tool finds. And if you'd rather have it all done for you, that's literally my job — see SEO consultation or get in touch.

Frequently asked questions

Is this SEO analyzer really free?

Yes — completely free, with no signup, no email required and no usage limits beyond fair-use rate limiting. It runs the same on-page checks I perform at the start of every paid audit.

How is the SEO score calculated?

The tool runs 17 weighted checks covering your title tag, meta description, headings, content depth, image alt text, canonical tag, indexability, mobile viewport, Open Graph tags, structured data and HTTPS. Critical factors like indexability and title tags carry more weight than minor ones like favicons. A passed check earns full points, a partial issue earns half, and a failed check earns none.

What is a good on-page SEO score?

80 or above means your on-page foundations are solid. 60–79 means the page works but is leaving rankings on the table. Below 60 usually means several critical elements are missing or broken and the page will struggle to rank for anything competitive. Remember that on-page SEO is the floor, not the ceiling — content quality and authority decide the rest.

Can I analyze my competitors' pages?

Yes. Enter any public URL — analyzing the pages that outrank you is one of the fastest ways to see what Google rewards in your niche. Compare their score, content depth and structured data against yours.

Do you store the pages or URLs I analyze?

No. The analysis runs in your browser and nothing you enter is saved, logged or shared.