Free Tool · No Signup · 10 On-Page Checks
Free On-Page SEO CheckerAudit Any URL in 30 Seconds
Paste a URL and a target keyword. Get a graded report with the exact fix for each issue.
~30 secondsNo signupActionable fixes
What This On-Page SEO Checker Analyzes
Ten on-page ranking factors, graded against your target keyword — from title tags to technical SEO
Title Tag
Character length & keyword placement
Meta Description
Optimal length & CTR optimization
Headings
H1-H6 structure & hierarchy
Content
Word count & readability score
Keywords
Primary & secondary usage
Images
Alt text & optimization
Links
Internal & external analysis
Schema
Structured data validation
Social Tags
Open Graph & Twitter Cards
Technical SEO
Canonical, robots, mobile-friendly
How to Use This On-Page SEO Checker
On-page SEO is everything on the page itself that tells Google what it is about and whether it deserves to rank — the title tag, the meta description, the heading tree, the body copy, the images, the internal links and the structured data. Unlike backlinks, all of it is under your control, which makes it the fastest part of SEO to fix. This checker grades those elements against a keyword you choose and tells you which ones are costing you rankings.
1
Paste the page URL
Any public URL — your page or a competitor’s. Nothing is stored.
2
Add your target keyword
The query you want this page to rank for. Every check is graded against it.
3
Fix what is flagged red
Each section explains the problem and the specific change to make.
Content & Structure Signals
- Title & meta description: Your listing in the SERP. Length, keyword placement and click appeal decide whether anyone clicks at all.
- Heading hierarchy: One H1, logical H2–H6 nesting. Duplicated or skipped levels confuse crawlers and screen readers alike.
- Content depth & readability: Word count, reading level and whether the copy actually uses the keyword in the places that count.
Technical & Discovery Signals
- Schema markup: Valid JSON-LD is what earns rich results. We detect what is there and flag what is broken.
- Internal & external links: Link counts, nofollow usage and empty anchor text that wastes the equity you already have.
- Indexability: Canonical tags and robots directives — a stray noindex silently removes the page from Google.
One Page, One Browser Tab, or Your Whole Site
This free checker is deliberately scoped to a single URL. When you outgrow that, there are two bigger tools — same checks, wider blast radius:
This free checker
1 page · 10 checks
Paste a URL, grade it against one keyword. No signup, nothing installed.
Chrome extension
1 page · 150+ checks
Audit any page you are already looking at, plus SERP decoding and an AI assistant. Free.
Get the extensionDigispot AI SEO Spider
Whole site · 300+ checks per page
Crawl every page with real browser rendering, then let an AI agent fix what it finds. Runs locally.
Explore the SpiderFix what the report flagged
Deep-dive guides for each issue this checker surfaces, written by the team behind the tool.
On-Page SEO Best Practices: Optimize Every Element
The full checklist behind every check this tool runs — titles, meta, headers, content, images, links.
Meta Tags SEO Guide: Titles & Descriptions
Fix the title and meta description issues flagged above, and write ones that actually earn clicks.
Heading Hierarchy: Structure H1–H6 Correctly
Why multiple H1s and skipped levels hurt, and how to lay out a heading tree Google can follow.
Internal Linking: Distribute Link Equity Right
Turn the link counts in your report into a deliberate structure that pushes authority where you need it.
Structured Data & Schema for SEO
No schema detected? Start here — which types to add, and how they win rich results.
Core Web Vitals: Improve LCP, CLS & INP
On-page fixes only go so far if the page is slow. The performance side of ranking.
Image Compression for Better SEO Speed
Missing alt text is half the story — oversized images quietly wreck your LCP too.
Search Intent SEO: Optimize for What Users Want
A technically perfect page still loses if it answers the wrong question.
How to Do an SEO Audit in 7 Steps
Ready to go past a single page? The full site-wide audit process, start to finish.
Digispot AI SEO Spider · Desktop
You just checked one page.Now check all of them.
This free checker runs 10 on-page checks against a single URL. The Digispot AI SEO Spider crawls your whole site and runs 300+ checks on every page — with real browser rendering, and an AI agent that fixes what it finds.
From $14/mo · 7 days free · No card required
Explore the full Digispot AI SEO SpiderEvery page, not just this one
Run the same depth of analysis across your entire site in one crawl — 300+ checks per page.
Real browser rendering
Mobile and desktop, the way Googlebot sees it. JavaScript executed, not guessed at.
59 MCP tools for your AI
Point Claude or Cursor at your crawl and let it do the triage and the fixing.
Your data stays local
The crawl runs on your machine. Client sites never leave your laptop.
Questions & Answers
Frequently Asked Questions
Everything you need to know about on-page SEO optimization. If you need more help, feel free to reach out to us.
Is this on-page SEO checker really free?
Yes — completely free, with no signup, no email and no credit card. Paste any public URL and a target keyword and you get the full graded report. We do not store the pages you analyze. Fair-use limits apply to keep the tool responsive, so if you are checking many pages in a row you may briefly be asked to wait. For bulk or site-wide analysis, the Digispot AI SEO Spider crawls every page of your site with 300+ checks per page.
How many checks does this free tool run?
This free checker runs 10 on-page checks against a single URL: title tag, meta description, heading structure, paragraphs, content quality and readability, images and alt text, internal and external links, schema markup, social tags (Open Graph and Twitter Card), and technical SEO signals such as canonical and robots directives. Each is graded against the target keyword you supply. If you need more depth, the free Digispot AI Chrome extension runs 150+ on-page checks on any page you are viewing, and the Digispot AI SEO Spider desktop app runs 300+ checks on every page across your whole site.
Can I analyze a competitor's page with this tool?
Yes. The checker works on any publicly accessible URL, so you can run a competitor's ranking page against the keyword you are targeting and compare their title, headings, content depth, schema and internal linking against yours. This is one of the fastest ways to see why a competing page outranks you. The only URLs we block are our own, to prevent the tool being used to load-test this site.
Why do I need to enter a target keyword?
Several checks are only meaningful relative to a keyword. Whether your title, H1, first paragraph and image alt text contain the term you want to rank for is not something that can be judged in the abstract. Supplying the keyword lets the tool grade keyword placement, density and semantic coverage rather than just counting characters. Use the single query you most want that page to rank for — you can add related terms in the optional secondary keywords field.
What is on-page SEO and why does it matter?
On-page SEO optimizes individual web pages to rank higher in search engines. It includes title tags, meta descriptions, headings, content quality, keyword usage, internal linking, image alt text, URL structure, and page speed. Unlike off-page SEO (backlinks), on-page factors are entirely within your control. On-page SEO helps search engines understand your content, directly influences rankings, improves user experience, and provides the foundation for all other SEO efforts. Our tool checks all critical on-page factors.
What are the most important on-page SEO factors in 2026?
Critical factors include: content quality and depth that satisfies user intent; E-E-A-T signals (Experience, Expertise, Authoritativeness, Trustworthiness); Core Web Vitals (LCP under 2.5s, FID under 100ms, CLS under 0.1); mobile-first optimization; semantic keyword usage with natural language; strategic internal linking; structured data/schema markup; and user engagement metrics (dwell time, bounce rate, CTR). Our tool analyzes all these factors for comprehensive assessment.
How does on-page SEO differ from technical SEO?
On-page SEO focuses on content and HTML optimization—what users see—including keywords, headings, title tags, content quality, image alt text, and meta descriptions. Technical SEO deals with website infrastructure—how search engines crawl and index—including site speed, mobile responsiveness, XML sitemaps, robots.txt, HTTPS, site architecture, and canonicals. On-page makes content valuable and relevant; technical SEO ensures search engines can efficiently crawl and index. Both are essential. Our tool focuses on on-page content and HTML optimization.
What is keyword density and does it still matter?
Keyword density (percentage of times a keyword appears vs total word count) is largely outdated. Early SEO recommended 2-3%, but today this can cause keyword stuffing. Modern SEO focuses on semantic relevance and natural language. Use target keywords naturally in key locations (title, H1, first paragraph, subheadings), include related terms and synonyms, match search intent, and cover topics comprehensively. Write for users first, place keywords where they make sense, use variations, and satisfy search intent. Our tool analyzes context rather than just counting density.
How many internal links should each page have?
No magic number exists, but best practices: include 2-5 contextual links per 1000 words; link to 3-5 important pages from navigation; aim for 5-10+ links pointing to pillar/cornerstone pages; avoid over 100 links per page. Quality matters more than quantity. Focus on relevant, contextual links with descriptive anchor text (avoid generic 'click here'), link to valuable pages, create logical content hierarchies with topic clusters, and balance deep links with navigational links. Our analysis checks linking patterns for optimal equity distribution.
How should I optimize images for SEO?
Alt text: describe clearly in 10-15 words, include keywords naturally, make it accessible for screen readers. File names: use descriptive, keyword-rich names (product-blue-widget.jpg not IMG_1234.jpg) with hyphens. Compression: compress to under 100KB, use WebP/AVIF formats, implement responsive images with srcset. Dimensions: specify width/height to prevent layout shift, use appropriate sizes, consider lazy loading. Structured data: add ImageObject schema for key images. Optimized images improve page speed, rank in Image Search, and enhance accessibility. Our tool checks for missing alt text.
What are semantic keywords and how do I use them?
Semantic keywords are conceptually related terms that commonly appear in similar contexts. For 'coffee maker', semantic keywords include 'brew', 'filter', 'carafe', 'espresso', 'grounds'. Google understands these relationships through NLP and LSI. Semantic keywords help you rank for multiple queries, avoid keyword stuffing, demonstrate topic comprehensiveness, and match user search patterns. Find them by analyzing top competitors, using Google's 'People Also Ask', or tools like LSIGraph and SurferSEO. Incorporate naturally in subheadings, content, and alt text. Don't force them—write naturally and they'll appear organically.
What is Core Web Vitals and how does it affect on-page SEO?
Core Web Vitals are Google's user experience metrics and ranking factors (since 2021): Largest Contentful Paint (LCP) measures loading (should be under 2.5s—optimize images, remove render-blocking resources, use CDNs); First Input Delay/INP measures interactivity (under 100ms—minimize JavaScript, break up long tasks); Cumulative Layout Shift (CLS) measures visual stability (under 0.1—add image size attributes, avoid inserting content above existing content, preload fonts). Good CWV improves rankings, user engagement, mobile performance, and crawl frequency. Use PageSpeed Insights or Search Console to monitor.
How long should my content be for optimal SEO?
Content length depends on search intent, not arbitrary word counts. General patterns: informational queries ('how to', 'what is') perform best at 1500-2500 words; commercial queries ('best', 'review') at 1000-2000 words; transactional queries (products) at 300-1000 words; local business pages at 500-1000 words. More important: satisfy search intent completely, cover related subtopics, use clear structure with headings and short paragraphs, include unique insights, and match/exceed competitor depth. Analyze top 10 results and aim to match quality, not just word count.
Should I use H1, H2, H3 tags and how many of each?
Yes, proper heading hierarchy is crucial. H1: use exactly one per page with your primary keyword, make it descriptive of main topic, place near top. H2: use for main sections (typically 3-7 for long-form content), include keywords naturally. H3-H6: use for subsections, maintain logical hierarchy (H3 under H2, H4 under H3). Heading hierarchy helps Google understand structure, improves scannability, and enhances accessibility. Avoid: multiple H1 tags, skipping levels, using headings for styling only, and keyword stuffing. Our analysis checks structure, counts, and keyword usage.
What is search intent and how do I optimize for it?
Search intent is the reason behind a user's query. Four types: Informational (how to, what is)—optimize with how-to content, FAQs, tutorials; Navigational (brand name, login)—optimize with clear branding and navigation; Commercial (best, review, comparison)—optimize with comparisons, reviews, buying guides; Transactional (buy, sign up)—optimize with clear CTAs, product pages, pricing. To identify intent: analyze top 10 results for your keyword, examine content types (blog posts, videos, product pages), check 'People Also Ask', and look for featured snippets. Our analysis evaluates content structure for intent matching.
How often should I audit my on-page SEO?
Audit frequency depends on site activity: active blogs/news sites (monthly); e-commerce sites (quarterly, plus immediate checks for new categories); service/small business sites (quarterly); after major Google updates (within 2-4 weeks); when rankings decline (immediately). Audit: title tags and meta descriptions (unique, optimized, under limits), content quality (update old, expand thin, remove duplicates), internal linking (fix broken, add new, optimize anchor text), images (alt text, compression), schema markup, and mobile usability. Use our tool for individual pages, site-wide crawlers for comprehensive audits.
What are common on-page SEO mistakes and how do I avoid them?
Common mistakes: duplicate content (fix with canonical tags, consolidate pages); thin content under 300 words (expand, add insights, or remove); keyword cannibalization (consolidate or differentiate targets); missing/duplicate title tags and meta descriptions (write unique for each page); poor URL structure (use clean, descriptive URLs with hyphens); ignoring mobile optimization (implement responsive design); slow page speed (compress images, minify CSS/JS, use CDN, implement caching); broken internal links (audit and fix). Our tool identifies many issues automatically.
How do schema markup and structured data affect on-page SEO?
Schema markup helps search engines understand your content and qualify for enhanced results. Impact: enables rich snippets (star ratings, prices, FAQs, recipes, events, products) increasing CTR by 20-40%; helps with Knowledge Graph inclusion; optimizes for voice search; improves content categorization; provides competitive advantage (only 30% use schema). Common types: Article/BlogPosting, Product/Offer, LocalBusiness, FAQPage, BreadcrumbList, Review/AggregateRating, VideoObject. Schema doesn't directly improve rankings but significantly enhances SERP appearance and CTR. Our tool detects existing schema; use our Schema Generator to create markup.
What role does user experience (UX) play in on-page SEO?
UX and SEO are intertwined. Direct UX ranking factors: Core Web Vitals (page speed, interactivity, visual stability), mobile-friendliness, HTTPS, intrusive interstitial penalties. Indirect UX signals: dwell time, bounce rate, pages per session, CTR from SERPs. UX elements impacting SEO: page layout and readability (short paragraphs, white space, clear hierarchy, scannable content); navigation (intuitive menus, breadcrumbs, logical linking); visual design (professional appearance, consistent branding); content accessibility (color contrast, alt text, keyboard navigation, heading hierarchy); interactive elements (clear CTAs, functioning forms). Google favors pages users find valuable and easy to use.