Free SEO Content Checker & Real-Time Editor
Paste your draft or enter a live URL to get an instant SEO score out of 100. Fix missing keywords, heading structure, and readability issues as you type.
Priority Action Items
4 issues- Title & Meta Descriptionfail
Add an SEO page title between 50 and 60 characters.
- Readability & Flowfail
Paste your content to measure readability and reading level.
- Content Length & Depthfail
Add body content of at least 800 words for competitive search ranking.
- Title & Meta Descriptionfail
Add a compelling meta description between 120 and 160 characters.
5 Core Diagnostic Signals
Simple 3-Step Process
How to Audit and Improve Your Content
Get an instant evaluation without leaving your browser or signing up for another subscription.
Paste Your Content or Enter a URL
Paste your raw draft or Markdown text into the editor, or switch to URL mode to fetch the main content of any published web page. Enter an optional focus keyword to evaluate placement and density.
Inspect Your Score & Priority Fixes
Our on-page SEO checker evaluates your copy across 5 core dimensions and calculates an overall score out of 100. Review the top priority fixes first so you know exactly which warnings or errors to address.
Edit and Re-Score in Real Time
Tweak your copy, refine your headings, or expand thin sections directly in the editor. The tool re-evaluates your changes with a 200ms debounce so you can watch your SEO score improve before you publish.
Audit Criteria
What the 5 Core SEO Checks Evaluate
Each check is an independent, pure function based on public search engine documentation and editorial readability research.
1. Title and Meta Description
Weight: 25%Checks title length (50–60 chars) and meta description (120–160 chars) to prevent Google SERP truncation while confirming focus keyword placement.
2. Headings and Logical Structure
Weight: 20%Verifies your article has exactly one H1 headline, includes your focus keyword, and maintains an orderly H2 and H3 hierarchy without skipped levels.
3. Keyword Optimization and Placement
Weight: 20%Ensures your target keyword appears in the first 100 words and maintains a balanced 0.5%–2.5% density to prevent keyword stuffing penalties.
4. Content Length and Topic Depth
Weight: 20%Flags thin content under 300 words, scales score with topic depth, and awards full marks for comprehensive articles reaching 800 words or more.
5. Readability and Sentence Flow
Weight: 15%Calculates Flesch Reading Ease (target 60+), detects overly long sentences, and flags dense paragraphs exceeding 120 words for smooth reading.
Fair Scoring with Provisional Weights
Overall Score = Weighted average calculated only on provided inputsPractical Walkthrough
A Realistic Before & After Example
See how small on-page refinements change the audit score and clarify search intent.
Title: Guide (5 characters — Too short, missing keyword)
Meta: Check this out. (16 characters — Too short)
H1: None detected
Intro: In today's fast world we look at many things that happen in software development every single day. (Keyword missing in first 100 words)
Title: Beginner Guide to Next.js SEO: Best Practices for 2026 (54 characters — Optimal)
Meta: Learn practical Next.js SEO best practices to optimize titles, heading hierarchy, and meta tags for higher search visibility and faster indexing. (148 characters — Optimal)
H1: # Beginner Guide to Next.js SEO (Contains target keyword)
Intro: Optimizing your Next.js SEO is essential if you want search engines to crawl and index your web application efficiently. (Keyword present in opening sentence)
Common Pitfalls
5 Common Mistakes This Checker Helps You Avoid
Title Tags Truncating in Google Search
Writing a 75-character title that gets cut off mid-thought on desktop and mobile search screens.
Missing Keywords in the Introduction
Discussing a topic for several paragraphs before ever mentioning the target phrase readers searched for.
Multiple or Missing H1 Tags
Having multiple conflicting H1 tags or jumping straight from an H1 to nested H3 tags without an H2 structure.
Accidental Keyword Stuffing
Repeating the exact same phrase too frequently, pushing density above 2.5% and creating an unnatural reading experience.
Dense Walls of Text
Packing 250 words into a single uninterrupted block of text that causes mobile readers to abandon the page.
100% Private By Design
Paste analysis executes locally in browser memory. URL mode fetches public pages statelessly without saving drafts.
Common Questions & Answers
Quick, honest answers about our free SEO content reviewer and how scoring works.
Related Engineering & SEO Guides
In-depth architectural breakdowns, pricing benchmarks, and search engine updates:
Google Spam Updates & Content Ranking Impact
Practical ways to audit site traffic shifts, safeguard content quality, and optimize for helpfulness.
How Much Does a Next.js Website Cost in 2026?
Comprehensive pricing breakdown, architecture decisions, and hosting considerations for modern web apps.
Track Search & AI Traffic Shifts in GA4
How to monitor referral traffic drops, segment AI bot visits, and adapt your on-page strategy in Google Analytics 4.
Need Help Scaling Your Web Presence?
Building great content is only one part of growing an online business. If you need assistance building fast Next.js applications, deploying autonomous AI automation pipelines, or establishing a robust technical SEO strategy, we are here to help.
Web Development
Modern, high-performance web applications built with Next.js and React.
AI & Automation
Custom AI agent workflows, vector search integrations, and process automation.
SEO & Content Strategy
Technical SEO audits, site architecture optimization, and content roadmaps.