On-Page SEO Analysis Tools
Audit any page’s on-page SEO and see exactly what to fix.
22 tools · Real Data
On-page SEO is everything you control on the page itself: the title and meta description, the heading structure, how your target keyword is used, internal links, and the overall quality and health of the content. Get these fundamentals right and every other effort — links, technical work, AI visibility — has something solid to build on. Get them wrong and even great content struggles to rank.
These tools let you audit any URL and see, in seconds, what is helping and what is holding a page back. Run a full on-page audit with a prioritized issue list, preview how a page looks in Google results, check title and meta lengths, analyze heading hierarchy and keyword density, and score readability and content quality. Every report uses the real, live page — not cached guesses — so the fixes it suggests reflect exactly what Google and your visitors see right now.
A sensible starting point is the All-in-One SEO Audit or the On-Page SEO Audit, which surface the biggest issues on a URL in one pass. Then switch to the focused tools for the fix itself: the keyword-based On-Page SEO Checker when a page should rank for one main term, the Heading Structure Analyzer and Image ALT Text Checker for structure and accessibility, and the Internal Link Opportunity Finder and Anchor Text Optimizer to connect related pages. Re-run the audit after editing to confirm each change actually landed.
Site & On-Page Analysis
22 toolsAll-in-One SEO Audit
One URL, one scan — every SEO check in a single report: title, meta, H1–H6, images, canonical, robots, sitemap, indexability…
Open tool →On-Page SEO Audit
Full on-page checkup with an overall score: titles, headings, images, links, mobile, speed, indexability and more.
Open tool →GEO & AEO Readiness Checker
Check how ready your site is for AI search (Google AI Overviews, ChatGPT, Perplexity).
Open tool →Technical Site Audit (Crawler)
Crawl multiple pages of a site and aggregate technical SEO issues: broken links, missing titles, thin content, redirects and…
Open tool →On-Page SEO Checker (Keyword)
Score how well a page is optimized for a specific target keyword — placement in title, H1, URL, density and more.
Open tool →Meta Tag Analyzer
Extract and grade title, meta description, robots, canonical, Open Graph and Twitter tags from any live page.
Open tool →Keyword Density Checker
Analyze real word & phrase frequency (1, 2 and 3-word) of any page to spot keyword stuffing or gaps.
Open tool →Heading Structure Analyzer
Visualize the H1–H6 outline of a page and detect missing H1, skipped levels and multiple H1 issues.
Open tool →Open Graph & Twitter Card Checker
Preview how your page looks when shared on Facebook, LinkedIn and X (Twitter) with full tag validation.
Open tool →Structured Data (Schema) Checker
Detect JSON-LD and Microdata structured data types implemented on a page (Article, Product, FAQ, etc.).
Open tool →Link Analyzer
Count internal vs external links, nofollow/dofollow ratio and list every link found on the page.
Open tool →Broken Link Checker
Crawl all links on a page and report dead links (4xx/5xx), redirects and their HTTP status codes.
Open tool →Image ALT Text Checker
List every image on a page and flag those missing descriptive ALT text — a key accessibility & SEO factor.
Open tool →Mobile-Friendly Checker
Check viewport configuration, responsive meta tags and common mobile usability signals.
Open tool →Page Speed & Size Test
Measure real server response time (TTFB), total load time, page weight, compression and request size.
Open tool →Thin Content Checker
Find out whether a page reads as thin, low-value content to search engines.
Open tool →Keyword Cannibalization Checker
Detect pages that compete against each other in search.
Open tool →Author Page Audit
Audit an author or bio page for the E-E-A-T signals Google and AI engines look for: a real photo, Person schema, a substanti…
Open tool →Anchor Text Optimizer
Analyze every link’s anchor text on a page and grade the mix.
Open tool →Internal Link Opportunity Finder
Discover internal links you’re missing.
Open tool →Content Freshness Score
Score how fresh and up to date a page looks to search engines.
Open tool →Google SERP Snippet Preview
Pixel-accurate preview of how your title and description will appear in Google search results.
Open tool →Who uses these Site & On-Page Analysis tools
The audiences these tools fit best — each page collects the tools for that audience.
Guides for specific audiences
Pages that walk through one of these tools for a specific platform or profession.
- Freelance SEOs: All-in-One SEO Audit guide — Clients want guaranteed rankings; you need evidence. Scan one prospect URL and get a prioritized, exportable list of fixes to anchor the pitch.
- Portfolio Sites: Image ALT Text Checker guide — Gallery images with no alt text or a file name like IMG_0231 give Google nothing to read. See which portfolio images need a description.
- Shopify Store Owners: Meta Tag Analyzer guide — Check the title, meta description, canonical and og:image your Shopify products and collections really serve. Spot blank or copied tags free in seconds.
- Marketing Agencies: All-in-One SEO Audit guide — Struggling to win SEO clients? Scan a prospect's page in one pass and open the pitch with specific, fixable issues, not a generic deck.
- Bloggers: Internal Link Opportunity Finder guide — Older blog posts fade when nothing links to them. Spot related posts that don't link to each other and add the missing links by hand.
- Shopify Store Owners: All-in-One SEO Audit guide — Did a theme edit or new app strip your titles, schema or indexing tags? Scan one Shopify URL and get a prioritized fix list.
- Squarespace Users: Image ALT Text Checker guide — Squarespace gallery and blog images often ship with no description. Scan one page URL and see which img tags have missing or empty ALT text.
- WordPress Site Owners: Meta Tag Analyzer guide — See the title, description, robots and canonical tags your WordPress posts really print. Catch two SEO plugins clashing, stray noindex and blank archives.
Frequently asked questions
What is on-page SEO?
On-page SEO covers the elements you control on a page itself — title tag, meta description, headings, content quality, keyword usage and internal links. It is the foundation that technical SEO and off-page links build on.
How do I audit a page for SEO?
Enter the URL into the On-Page SEO Audit tool. It fetches the live page and returns a categorized report — meta, headings, content, links and technical signals — with a prioritized list of issues ranked by impact.
What is a good title and meta description length?
Aim for a title of about 50–60 characters and a meta description of about 150–158 characters so neither is truncated in Google results. The Meta Tag and SERP Preview tools flag anything too long or too short.
Are these on-page tools free?
Yes. Every on-page analysis tool here is free, uses real live data, and needs no account or credit card.
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