SEOWiser — SEO & AI Visibility Analyzer

Complete on-page SEO and AI visibility audit. Scoring AI access, schema, content, and readability like Lighthouse + AI crawler.

SEOWiser is the most complete free on-page SEO and AI visibility audit tool available as a Chrome extension. In a single click, it analyzes the page you are currently viewing and generates a structured, scored report across five critical dimensions: AI Visibility, AI Bot Access, Schema Markup, Content Quality, and Technical SEO. Think of it as Lighthouse, an SEO crawler, and an AI readability analyzer — merged into one clean, lightweight popup that lives right in your browser. Whether you are an SEO professional auditing client websites, a content marketer optimizing blog posts for AI search engines like ChatGPT, Perplexity, and Claude, or a developer checking technical health before deployment — SEOWiser gives you instant, actionable intelligence without leaving the tab you are working on. No account required. No data sent to any server. Fully client-side. Free. ───────────────────────────────────────────── ⚡ WHY SEOWISER EXISTS ───────────────────────────────────────────── SEO in 2025 has two audiences: traditional search engines like Google, and AI-powered answer engines like ChatGPT Search, Perplexity, Claude, and Google AI Overviews. Most SEO tools were built before AI search existed. They check title tags and meta descriptions, but completely ignore whether your content is actually readable and accessible to large language models (LLMs). SEOWiser was built from the ground up to audit both worlds simultaneously. It checks whether your content ranks well for humans AND whether AI bots can discover, read, and cite your content. In the era of generative search, this is no longer optional — it is the new baseline for competitive SEO. ───────────────────────────────────────────── 📊 OVERALL SCORING SYSTEM (100 POINTS) ───────────────────────────────────────────── Every page receives an overall score out of 100, calculated as a weighted composite across five categories: AI VISIBILITY — 40 points AI ACCESS — 20 points SCHEMA MARKUP — 10 points CONTENT QUALITY — 20 points TECHNICAL SEO — 10 points The score is color-coded and graded: ✅ 85–100: Excellent ✅ 70–84: Good ⚠️ 55–69: Fair 🔶 40–54: Poor 🚨under 40: Critical Each category breaks down into individual sub-checks with their own mini-scores, so you always know exactly where points are being lost and what to fix first. ───────────────────────────────────────────── 🧠 AI VISIBILITY (40 POINTS) — THE HEADLINE FEATURE ───────────────────────────────────────────── This is the category most SEO tools ignore entirely. AI Visibility measures how well large language models — the engines powering ChatGPT Search, Perplexity, Google AI Overviews, Claude, and Bing Copilot — can actually read, understand, and cite your content. AGENT VIEW vs. HUMAN VIEW SEOWiser renders two separate views of your page: → Agent View: The raw text extracted from static HTML — exactly what AI crawlers like GPTBot and ClaudeBot see when they fetch your page without executing JavaScript. This is the version that gets indexed and cited. → Human View: The rendered text visible to actual users in the browser after JavaScript execution. If these two views differ significantly, you have a hidden content problem. Content buried in JavaScript-rendered components, lazy-loaded sections, tab panels, or accordions is invisible to AI bots even if your human users see it perfectly. SEOWiser detects and flags every one of these discrepancies. AI READABILITY SCORE Calculated using the Flesch Reading Ease formula, the AI Readability Score measures how easily an LLM can parse your writing. Long, complex sentences and dense jargon reduce this score. Clear, well-structured prose increases it. AI models are more likely to quote, summarize, and cite pages with higher readability scores. Score ranges: 70–100: Easy — ideal for AI citation 60–69: Fairly Easy — good 50–59: Average — room to improve 30–49: Difficult — needs work 0–29: Very Difficult — high risk of being skipped by AI summarizers HIDDEN CONTENT DETECTION SEOWiser automatically scans the page for content that is technically present in the DOM but invisible or inaccessible to AI crawlers: Collapsed accordions (details/summary elements not open by default) Hidden tab panels (aria-hidden="true", .tab-pane:not(.active)) Lazy-loaded images and sections (data-src, loading="lazy") CSS display:none elements containing substantial text JavaScript-triggered visibility states Each hidden element type is flagged with a specific warning and a recommended fix, such as adding the "open" attribute to details elements so their content appears in raw HTML. CONTENT STRUCTURE ANALYSIS Beyond readability, SEOWiser maps the structural clarity of your content for AI consumption: FAQ sections present (dramatically increases AI citation probability) List usage (ordered and unordered lists signal structured information) Paragraph count and density Table and video presence ───────────────────────────────────────────── 🤖 AI ACCESS (20 POINTS) ───────────────────────────────────────────── Even the most readable, well-structured content is worthless for AI search if the bots are blocked from crawling it. SEOWiser fetches and parses your site's robots.txt in real time and reports the access status for every major AI crawler individually. BOTS CHECKED: OAI-SearchBot — OpenAI's search indexer GPTBot — OpenAI's training crawler ChatGPT-User — OpenAI's user-triggered fetcher ClaudeBot — Anthropic's training crawler Claude-SearchBot — Anthropic's search indexer Claude-User — Anthropic's user-triggered fetcher PerplexityBot — Perplexity's search crawler Perplexity-User — Perplexity's user-triggered fetcher Google-Extended — Google's AI training policy bot For each bot, SEOWiser shows: Allowed / Blocked / Partial status The company and bot category (Search / Training / User Fetch / Policy) The specific robots.txt rule causing any restriction META ROBOTS TAG ANALYSIS Checks the page's meta robots tag for noindex, nofollow, and other directives that could prevent AI bots from accessing or indexing the content, regardless of robots.txt rules. LLMS.TXT DETECTION llms.txt is an emerging open standard (llmstxt.org) that allows website owners to provide structured guidance directly to LLMs about how to understand and use site content. SEOWiser checks whether your domain has a /llms.txt file, displays its contents, and provides tools to generate and validate one. ───────────────────────────────────────────── 📋 SCHEMA MARKUP ANALYSIS (10 POINTS) ───────────────────────────────────────────── Structured data is one of the most powerful signals for both traditional SEO and AI discoverability. JSON-LD schema tells search engines and AI systems exactly what type of content is on the page and how to interpret it. Without it, engines have to guess. SEOWiser extracts and analyzes all JSON-LD script blocks on the page: WHAT IS DETECTED: All JSON-LD schema blocks Schema types: Article, FAQPage, HowTo, Product, LocalBusiness, Organization, WebSite, BreadcrumbList, and more Valid vs. invalid (parse errors flagged with specific error messages) @graph structures (multiple schema types in one block) SCORING BREAKDOWN: JSON-LD present at all: +5 points High-value schema types detected (Article, FAQ, Product): +3 points AI-optimized types (FAQPage, HowTo): +2 points RAW JSON PREVIEW The full JSON-LD is displayed in a formatted code preview with a one-click copy button — ready to paste into Google's Rich Results Test or share with a developer for debugging. SMART RECOMMENDATIONS If schema is missing or incomplete, SEOWiser generates ready-to-use JSON-LD code snippets for the most impactful schema types. For example, if your page has no FAQ schema, SEOWiser generates a complete FAQPage JSON-LD block with your page's title pre-filled, ready to paste directly into your site's head section. ───────────────────────────────────────────── 📄 CONTENT ANALYSIS (20 POINTS) ───────────────────────────────────────────── HEADING STRUCTURE — FULL H1 to H6 MAPPING This is where SEOWiser goes further than almost any other extension. The Content tab includes a complete, visual heading hierarchy that mirrors what Sitechecker and enterprise crawl tools show — but available instantly for any page, for free, right in your browser. HEADINGS VIEW: Grid display showing count of H1, H2, H3, H4, H5, H6 tags Full heading tree showing all headings in document order Color-coded: H1 bold black, H2–H6 in blue with indented nesting Dotted connector lines showing visual hierarchy (like the reference screenshots) "Copy H1-H6 Headings" button — copies all headings as a plain text list for documentation or reporting CONTENT RELEVANCE VIEW (TOP WORDS): Switches to a keyword density analysis with tabbed breakdown: 1-word phrases: Top 15 single keywords by frequency (count + percentage) 2-word phrases: Top 15 bigrams (filtered for stop words) 3-word phrases: Top 15 trigrams (filtered for stop words) This data helps identify over-optimization, keyword cannibalization, and whether your primary target keyword actually dominates the page content as it should. ADDITIONAL CONTENT METRICS: Total word count with large, clear display Flesch Readability score Page size in KB with Google crawl budget context (X KB of 2 MB limit — Y%) External link count Internal link count Text-to-code ratio Character count ───────────────────────────────────────────── ⚡ TECHNICAL SEO (10 POINTS) ───────────────────────────────────────────── QUICK CHECK PANEL (OVERVIEW TAB) The Overview tab gives you an instant at-a-glance dashboard of the most critical technical elements — no need to dig into sub-tabs: Title tag — text, character count, Good/Short/Missing badge (ideal: 50–60 characters) Meta description — text, character count, Good/Short/Missing badge (ideal: 140–160 characters) H1 tag — text and count (1 = Good, 0 or 2+ = Warning/Fail) Schema — type and block count llms.txt — Found/Missing Page size — KB and percentage of Google's 2 MB crawl limit FULL TECHNICAL CHECKS: Canonical tag presence and URL Open Graph tags (og:title, og:description, og:image, og:type) — Complete/Partial/Missing Twitter/X Card tags (twitter:card, twitter:title, twitter:description, twitter:image) Viewport meta tag (mobile responsiveness signal) HTML lang attribute (internationalization signal) Image alt text coverage (total images vs. images missing alt) ───────────────────────────────────────────── 📋 LLMS.TXT TAB — DEDICATED AI GUIDANCE FILE TOOLS ───────────────────────────────────────────── The llms.txt tab is a dedicated workspace for the emerging /llms.txt standard: Live detection of /llms.txt at the current domain Direct link to the file if found Expandable raw content viewer showing full file contents and line count GENERATE button: Creates a customized llms.txt template pre-populated with your page's title, H1, domain, and key page suggestions — downloadable as a .txt file VALIDATE button: Checks an existing llms.txt for required sections (description line, ## sections, permissions block) and reports specific issues ───────────────────────────────────────────── 🎯 WHO IS SEOWISER FOR? ───────────────────────────────────────────── SEO PROFESSIONALS & AGENCIES Run instant on-page audits for any client URL without logging into a separate tool. The tabbed interface and copy-ready data make it easy to extract insights directly into reports. CONTENT MARKETERS & WRITERS Check whether your blog posts, landing pages, and articles are optimized not just for Google but for AI answer engines. Understand your keyword density, heading structure, and readability score before publishing. DIGITAL PR & LINK BUILDING SPECIALISTS Analyze target pages before outreach. Check their schema, internal link structure, and AI visibility score to understand their authority signals. WEB DEVELOPERS Validate technical SEO before launching pages: canonical tags, Open Graph tags, Twitter Cards, viewport tags, and schema markup — all in one place without needing to inspect HTML manually. STARTUP FOUNDERS & PRODUCT TEAMS Monitor competitor pages. Understand why competitor content appears in AI answers and yours does not. Check your own pages for AI visibility gaps before content goes live. EDUCATORS & STUDENTS Learn how on-page SEO works by analyzing any live webpage. See exactly how headings, schema, readability, and bot access interact to produce an overall quality score. ───────────────────────────────────────────── 🔒 PRIVACY & PERMISSIONS ───────────────────────────────────────────── SEOWiser is built with privacy as a core principle: NO account required — ever NO data collected from you or the pages you analyze NO external analytics or tracking NO ads Fully client-side: all analysis runs in your browser Results cached locally in chrome.storage.local — your data stays on your device Only permissions required: activeTab (to read the current page), scripting (to extract DOM data), storage (to cache your last result), and host_permissions to fetch /robots.txt and /llms.txt from the domain you are visiting The extension only reads data from the tab you explicitly trigger it on by clicking Analyze. It does not monitor your browsing activity passively. ───────────────────────────────────────────── 🛠 TECHNICAL DETAILS ───────────────────────────────────────────── Built on Chrome Extension Manifest V3 — the most current and secure extension platform Zero inline event handlers — fully CSP-compliant Background service worker handles cross-origin robots.txt and llms.txt fetching Content extraction via chrome.scripting.executeScript — reads live DOM without modifying it Last analysis cached per URL so results reload instantly when you reopen the popup ───────────────────────────────────────────── 🌐 ABOUT SEOWISER ───────────────────────────────────────────── SEOWiser is developed and maintained by the team at seowiser.net — a platform focused on making advanced SEO and AI visibility tools accessible to everyone, from independent bloggers to enterprise content teams. The extension is free, open to all, and will remain so. Visit seowiser.net for guides, updates, and the latest thinking on optimizing for both traditional search and AI-powered answer engines. Have a feature idea? Found a bug? Use the Idea link at the bottom of the extension popup, or reach out via seowiser.net. ───────────────────────────────────────────── ⭐ IF YOU FIND IT USEFUL ───────────────────────────────────────────── Please leave a review on the Chrome Web Store. It takes 30 seconds and helps other SEO professionals, content marketers, and developers discover the tool. Every rating helps SEOWiser reach more people who need it. Thank you for installing SEOWiser. Now go analyze something.