Free On-Page SEO Score Checker
Audit any URL against 12+ on-page ranking factors and get a 0–100 score with a one-line fix for every failing check — instantly and without signup.
How does the RankifyPro SEO checker work? Paste any URL, click "Check SEO Score", and our server fetches the page once, parses the HTML, and audits 12 on-page signals: title tag, meta description, H1, H2, image alt text, mobile viewport, canonical, page load speed, keyword density, HTTPS, Open Graph tags, and robots directive. Results appear in 3–6 seconds as a 0–100 score with a recommendation for every imperfect check. Your URL is never stored.
SEO Analyzer
Check your website’s on-page SEO score in seconds. We analyze 12+ SEO factors.
Analyzing your website SEO…
SEO Score Report
What is an On-Page SEO Score and Why Does It Matter?
An on-page SEO score is a single number — typically expressed on a 0 to 100 scale — that summarises how well a single web page implements the technical and content-level signals that search engines and AI answer engines look for. It is the SEO equivalent of a credit score: it doesn’t guarantee a particular outcome, but it instantly tells you whether the fundamentals are in place.
When Googlebot or Bingbot first encounters one of your URLs, it reads the raw HTML. Within milliseconds it tries to answer four questions: What is this page about? Who is it for? Is it safe? Should I show it on mobile? The answers come from a small set of on-page signals — your title tag, your meta description, your headings, your alt text, your viewport tag, your canonical link, your HTTPS status, and your robots directive. RankifyPro audits all of them at once.
The same signals matter for AI engines. ChatGPT, Gemini, Perplexity and Microsoft Copilot don’t crawl the web in real time the way Google does, but the documents they cite were originally indexed using the same fundamentals. A page with a clean title, a real H1, a sensible meta description and an FAQ section is dramatically more likely to be retrieved and quoted than one with broken HTML or thin metadata.
Why the score matters for AdSense and monetised sites
Google AdSense reviewers explicitly look for sites that demonstrate "value to the user". One of the cheapest, fastest ways to demonstrate value is a clean technical foundation. A site whose pages score 80+ on RankifyPro is a site that loads fast, has descriptive headings, real meta data and proper accessibility — all of which translate directly into "high-quality user experience" in the AdSense Program Policies.
How Each Check is Calculated (Editorial Transparency)
1. Title Tag
We read the contents of the <title> element. Pass: 40–65 characters. Warn: present but outside that range. Fail: missing entirely.
2. Meta Description
We read the content attribute of <meta name="description">. Pass: 120–160 characters. Warn: present but outside that range. Fail: missing.
3. H1 Heading
We count all <h1> elements. Pass: exactly one. Warn: more than one. Fail: none.
4. H2 Headings
We count all <h2> elements. Pass: two or more. Warn: exactly one. Fail: none.
5. Image Alt Text
We iterate over every <img> on the page and check the alt attribute. Pass: 100% coverage. Warn: partial coverage (with a percentage progress bar). Fail: no images have alt text. Info: no images on the page.
6. Mobile Viewport
We look for a <meta name="viewport"> tag. Pass: present (and we display the content value). Fail: missing.
7. Canonical Tag
We look for <link rel="canonical">. Pass: present. Warn: missing.
8. Page Load Speed
We measure HTML response time in milliseconds. Pass: < 800ms. Warn: 800–2000ms. Fail: > 2000ms.
9. Keyword Density
We strip HTML, split visible text on whitespace, and count occurrences of every word longer than four characters. The top word’s share of total words is the density. Pass: 1–3%. Warn: above 3% (possible stuffing). Info: below 1%.
10. HTTPS / SSL
We inspect the URL scheme after redirects. Pass: https://. Fail: http://.
11. Open Graph Tags
We look for at least an og:title meta property. Pass: present. Warn: missing.
12. Robots Meta
We look for <meta name="robots">. Pass: present and not noindex. Fail: contains noindex. Info: absent (defaults to indexable).
The total score is the sum of awarded points (10 for pass, 5 for warn, 0 for fail) divided by the maximum possible, expressed as a percentage. Info checks are excluded from the denominator so they don’t penalise pages that legitimately have no images, for example.
Step-by-Step Walkthrough
Open the SEO checker
You’re already on it. Bookmark this page so you can return to it during your monthly site audits.
Paste your URL
Use the full URL including https://. Audit one page at a time — homepage, top blog post, top landing page, etc.
Click "Check SEO Score"
The button is disabled while the audit runs. You’ll see a spinner; results auto-scroll into view.
Read the score and grade
0–39 red, 40–59 amber, 60–79 blue, 80+ green. The dial animates from 0 to your actual score.
Sort fixes by impact
Red "fail" cards = highest priority. Amber "warn" cards = next. Blue "info" cards = lowest priority.
Re-test after each fix
Apply the fix in your CMS, clear any caches, and run the same URL again. The score will climb in real time.
Expert Tips for Boosting Your Score Quickly
Fix the title tag first. It’s the single highest-leverage on-page signal. A perfectly-sized, keyword-front-loaded title can move a page from page 3 to page 1.
Audit your top 10 organic landing pages monthly. Use Google Search Console to find them; run each one through RankifyPro. Compounding incremental fixes outperform big quarterly overhauls.
Add an FAQ section to every important page. Pair it with FAQPage JSON-LD schema. This single tactic dramatically increases your odds of being cited by AI Overviews, Gemini and ChatGPT.
Use absolute URLs everywhere. In canonicals, in og:image, in JSON-LD image. Relative URLs are a common source of structured-data warnings.
Lazy-load below-the-fold images. Native loading="lazy" requires no library and dramatically improves both LCP and time-to-interactive.
Common Mistakes to Avoid
Treating the score as the goal. A score of 100 with thin content will not rank. The score is a hygiene check, not a content strategy.
Stuffing the meta description with keywords. Google rewrites stuffy descriptions and CTR suffers. Write for the human first.
Auditing only the homepage. 80–90% of organic traffic lands on interior pages. Audit those, not just the front door.
Forgetting to remove staging-environment noindex tags after launch. The single most common silent SEO killer.
Copy-pasting alt text across all images. Each image needs its own descriptive alt — it’s an accessibility requirement, not just SEO.
Security & Privacy
The URL you submit is fetched once, parsed in memory, and immediately discarded. There is no audit history, no email collection, no remarketing pixel firing on the audit endpoint. Read our full Privacy Policy and Cookie Policy for the long-form disclosure.
Our crawler identifies itself as Mozilla/5.0 (compatible; RankifyPro/1.0; +https://rankifypro.com) in the User-Agent header so server-side log analysis tools can see exactly where the request came from.
Frequently Asked Questions
How do I check my website’s SEO score for free?
Paste your full URL into the input field on this page, click "Check SEO Score", and wait 3–6 seconds. RankifyPro will fetch the page, audit 12+ on-page factors, and display an instant 0–100 score with a one-line recommendation for every check.
What is a good on-page SEO score?
A score of 80 or above is considered excellent, 60–79 is good, 40–59 is average (some fixes needed), and below 40 indicates significant issues that should be addressed before promoting the page.
What URLs can I check with this tool?
Any publicly accessible URL that returns HTML — your own homepage, a blog post, a product page, a competitor’s page, or a landing page. Login-protected URLs and pages that require JavaScript rendering to deliver content cannot be analyzed.
Do I need to install anything to use the SEO checker?
No. The tool runs entirely on our server. You only need a web browser and the URL you want to audit.
Is the tool reliable for technical SEO audits?
The tool is reliable for the 12+ on-page factors it covers. For a complete technical audit you should also run Google Search Console (crawl errors, index coverage, structured-data warnings) and PageSpeed Insights (Core Web Vitals).
Why does my title tag get a "warning" even though it’s not empty?
The audit warns when a title is shorter than 40 characters (likely losing keyword opportunity) or longer than 65 characters (likely to be truncated in Google’s search results). Aim for the 40–65 character sweet spot.
My meta description has emojis — does the tool count those correctly?
Yes. Length is measured in bytes/characters of the rendered string. Emojis count as one character each. Google generally renders descriptions up to ~155–160 characters on desktop.
Should every page on my site have exactly one H1?
Yes — this is a long-standing best practice. While Google has stated multiple H1s won’t break rankings, exactly one H1 per page produces the clearest semantic structure for crawlers, screen readers, and AI summarizers.
I have decorative images without alt text — will the tool flag them?
The tool counts missing alt attributes. Truly decorative images should set alt="" (an empty alt) — this declares them decorative and the audit will treat them as having alt text. Avoid leaving the attribute off entirely.
How important is the canonical tag if I don’t have duplicate content?
Very important. A self-referencing canonical protects you from accidental duplication caused by tracking parameters (utm_*, fbclid), CDN variants, AMP versions, trailing slashes, and case-sensitive URL handling. Always self-canonicalise.
The tool says my page is slow but PageSpeed Insights says it is fast — why?
Our check measures HTML-document response time only (server TTFB + transfer). PageSpeed Insights renders the full page in a real browser including CSS, JS, fonts and images. A fast HTML response with a slow rendered page typically means heavy client-side assets.
Does the tool follow redirects?
Yes — up to 5 hops. The final URL after redirects is the one that gets audited. If your site is on HTTP and redirects to HTTPS, we’ll audit the HTTPS destination.
Can I export or share the SEO report?
Right now the report is displayed in your browser only. You can screenshot it, print to PDF (browser print dialog → Save as PDF), or share the page URL with the ?url=… query parameter — the audit will re-run automatically on the recipient’s screen.
Are my audits private?
Yes. The URL you submit and the resulting analysis are discarded immediately after the response is returned to your browser. We never store, log, or share them.
Does the SEO score predict where my page will rank in Google?
No single score can predict rankings — Google uses hundreds of signals, including off-page factors like backlinks, user behaviour, freshness, brand authority and search intent. A strong on-page score is a necessary foundation; rankings are then driven by everything else.
How does the tool measure keyword density?
We strip HTML, lowercase the visible text, split on whitespace, and count occurrences of every word longer than 4 characters. The top word’s percentage of the total word count is the keyword density. Healthy range: 1–3%.
What does a "fail" on Robots Meta mean?
It means the page has a noindex directive that explicitly tells Google not to index the URL. Unless this is intentional (e.g., a thank-you page, a staging URL, a duplicate variant), remove it immediately.
Does this tool check schema markup / structured data?
The current release flags missing Open Graph tags (which use a structured-data-like syntax) but does not validate JSON-LD schemas. For schema validation use Google’s Rich Results Test alongside our on-page audit.
Will the tool work on a single-page application (SPA)?
It will fetch the initial HTML response. If your SPA renders the meaningful content with JavaScript after page load (client-side rendering), the audit will only see the empty shell. Use server-side rendering (Next.js, Nuxt, Remix) or pre-rendering for proper SEO and a meaningful audit.
Can I check the same URL many times in a row?
Yes — unlimited checks. Each check makes a fresh request to your origin, which is also a way to spot-check uptime or A/B test on-page changes in real time.
Is the SEO checker open source?
The check logic is documented in detail on our Methodology page. We may release portions of the analyzer publicly in the future.
How is the tool funded?
Through Google AdSense. Advertising allows us to keep every feature free, with no signup wall and no usage caps. We do not sell user data.