Free SEO Checker
Paste any page URL below to run an instant on-page SEO check — title tag, meta description, headings, image alt text, mobile-friendliness and more. No signup, no credit card.
Works on any public page. Results appear below in a few seconds.
Paste your URL
Drop in the exact page you want checked — homepage, blog post, or product page.
Click Analyze
The checker fetches the live page and scans it against a set of on-page SEO factors.
Review your results
See a score plus a plain-English breakdown of exactly what to fix first.
What is an SEO audit?
An SEO audit is a systematic review of a website to find the technical and on-page factors that are helping — or hurting — its ability to rank in search engines. A good audit looks at things search engines actually evaluate: whether your title tags and meta descriptions are set up properly, whether your headings are structured logically, whether images have descriptive alt text, and whether the page loads correctly on mobile devices.
This free checker runs a lightweight, single-page version of that process. Paste in a URL, and it pulls the live HTML of that page and scans it against a set of well-established on-page ranking factors, then shows you a plain-English report of what's working and what needs attention.
What this tool checks
Each check below maps to something real that search engines and users both care about:
| Check | Why it matters |
|---|---|
| Title tag | Your page's headline in search results — length and presence both matter |
| Meta description | The summary snippet shown under your title in search results |
| H1 heading | Tells search engines and readers what the page is actually about |
| Image alt text | Helps search engines understand images and improves accessibility |
| Word count | Thin content can struggle to rank for competitive terms |
| Canonical tag | Prevents duplicate-content confusion across similar URLs |
| Mobile viewport tag | Required for a page to render correctly on phones |
| HTTPS | A baseline trust and ranking signal for every modern site |
| Open Graph tags | Controls how your page appears when shared on social media |
Key on-page SEO factors
Content & structure
- One clear, descriptive H1 per page
- Logical heading hierarchy (H2s, H3s) that outlines the content
- Enough original content to fully answer the search intent
- Natural use of target keywords — not repeated artificially
Metadata & technical basics
- A unique title tag under ~60 characters
- A compelling meta description under ~160 characters
- A self-referencing or correct canonical tag
- HTTPS enabled sitewide, with no mixed content
Common SEO issues this kind of checker catches
- Missing or duplicate title tags — search engines may rewrite your snippet if the title is missing entirely.
- No meta description — search engines will auto-generate one from page content, which is often less compelling.
- Multiple or missing H1 tags — makes it harder for search engines to understand the page's main topic.
- Images without alt text — a missed opportunity for both accessibility and image search visibility.
- Thin content — pages with very little text often struggle to rank for competitive queries.
- No mobile viewport tag — can cause a page to render as a shrunken desktop layout on phones.
Limitations of a free, single-page checker
To stay honest about what this tool can and can't do: it analyzes exactly one page's HTML, on demand, in your browser. It does not crawl your entire site, measure page speed or Core Web Vitals, check backlinks, or track keyword rankings — those require server-side infrastructure and paid data sources. Think of this as a fast first pass to catch obvious on-page issues, not a replacement for a full technical SEO audit.
Frequently asked questions
Is this SEO checker really free?
Yes. There's no signup, no account, and no limit built into the tool itself — you can check as many pages as you like.
Why did my check fail to load?
Some sites block automated requests, or the page may be temporarily unreachable. Double-check the URL is correct and publicly accessible, then try again.
Does a high score guarantee good rankings?
No. On-page factors are one piece of a much larger picture that includes backlinks, site authority, content quality, and user experience. A high score means your on-page basics are solid — not a ranking guarantee.
Can I check a page that isn't published yet?
No — the tool needs to fetch the live, publicly accessible version of the page, so staging pages behind a login won't work.
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