SeoBrowser - SEO & GEO & AEO Analyzer

On-device audit of the active tab for SEO, GEO (Generative Engine Optimisation) and AEO (Answer Engine Optimisation) signals.

SeoBrowser is a fast, private, on-device technical SEO auditor - purpose-built for the AI-search era. One click on the toolbar icon (or a tap on the side panel) audits the page you are currently viewing across three modern disciplines: • SEO - classical search-engine optimisation • GEO - Generative Engine Optimisation (visibility in AI answer engines) • AEO - Answer Engine Optimisation (featured snippets, voice answers) The audit completes in 1–3 seconds and produces a structured report from twelve analyzers rendered across eleven tabs, plus an AIO/GEO/AEO compliance score across 33 weighted criteria. 🔍 WHAT IT INSPECTS • Overview - title, meta-description, canonical, meta-robots including the nosnippet / max-snippet / data-nosnippet directives that exclude a page from AI Overviews, OG, Twitter Card, security headers, charset, lang, viewport • Content - H1 count + text, heading hierarchy, word count, text-to-HTML ratio, entity coverage • Links - internal vs external counts, empty anchors, generic anchors, authoritative outbound citations, topical clusters, anchor entropy • Hreflang - count, ISO validity, x-default, self-reference • Images - alt coverage, width/height, lazy-loading, broken-image detection, mixed-content (insecure http on https) detection, decorative-vs-meaningful classification • Schema - JSON-LD, Microdata, RDFa parsing; completeness checks for the GEO-critical schema.org types (Article, Organization, FAQPage, Product and more) plus opportunistic bonus types; deep field validation; Article freshness • Performance - LCP, CLS, FCP, TTFB, DOM size, resource counts (live PerformanceObserver) • AI Crawlers - robots.txt parse (incl. Sitemap directive) + per-bot access decision across 46 tracked AI crawlers, grouped by purpose: model training, live retrieval, and indexing • llms.txt - presence and structure against the llmstxt.org proposal, reported for information: no AI vendor is known to read the file and Google states none is needed • Agent Readiness - 9 well-known probes: sitemap, RFC 8288 Link header, Markdown content negotiation, agent-skills, api-catalog, MCP server card, OAuth & OpenID configuration, ai.txt • Crawler View - what AI crawlers see WITHOUT JavaScript: raw-HTML coverage, main-content ratio, token bloat, anti-bot signals, five simulated bot perspectives • AEO - answer-first paragraphs, question headings, info density, table presence, semantic chunking, voice-friendly first paragraph, position-zero alignment 📊 AIO / GEO / AEO SCORE A separate tab summarises 33 weighted criteria across five tiers (S - Critical, A - High Impact, B - Medium, C - Specialised, D - Forward-Looking). Each criterion has a tier weight, a discipline (AIO / GEO / AEO), a status (PASS / WARN / FAIL / INFO), and a one-click "Copy fix" snippet for the ten highest-impact items. Filter by discipline, focus on a discipline (1.5× weight), or read the un-focused 100-point compliance percent. 🖥️ INTERFACE & WORKFLOW • Redesigned, dense, technical UI with light / dark / system theme • Run it as a toolbar popup or as a full-height side panel - your choice • Filter and search findings; expand any finding to the raw underlying elements (the actual empty anchors, alt-less images, schema blocks) • Compare any two saved audits side-by-side in History to track regressions • A Settings page: choose which crawler's rules to read robots.txt as, hide tabs you don't use, set the start tab, control history and its cap, and pick which bots the Crawler View simulates • First-run onboarding, and a keyboard shortcut (Alt+Shift+S) to open the audit instantly • Every WARN/FAIL states the exact threshold it missed - no guessing why • The footer shows the installed version and flags when a newer version is available 🔒 PRIVACY GUARANTEES • All processing happens on your device. Page content NEVER leaves the browser. • No analytics, no telemetry, no error reporting, no advertising SDKs. • No third-party network requests of our own. Three narrow exceptions are documented in the privacy policy: Chrome's own extension-update check, Quick Tools links you click yourself, and image thumbnails loaded from the audited page when you expand the Images list. • The audit makes a small set of same-origin probes (robots.txt, sitemap.xml, /.well-known/*, etc.) - these are publicly addressable resources the page itself could request. They are sent with "credentials: 'omit'" and "referrerPolicy: 'no-referrer'". • Audit history is optional - switch it off in Settings and nothing is written. When on, it lives in your browser's IndexedDB only: up to 100 audits, 20 per URL by default (configurable 1–200). Clear any time via the History tab. • Manifest v3, no "host_permissions", only six minimum permissions: activeTab, storage, scripting, contextMenus, sidePanel, alarms. • Open privacy policy: https://seobrowser.ru/privacy ⚙️ EXPORT Every audit can be exported as a self-contained, shareable HTML report (single file, no external resources), JSON, CSV (UTF-8 BOM, Excel-friendly), Markdown, AI-prompt (paste into your AI assistant for tailored remediation), or a dedicated AIO/GEO/AEO Markdown digest. 🌐 LANGUAGES UI: English, Russian (auto-selects from Chrome's UI language). Analyzer findings: English (works on pages in any language). 📍 WHO IT'S FOR • SEO specialists running on-page audits for clients • Content & growth teams optimising for citations in AI answer engines • Product engineers verifying schema, hreflang, Open Graph, and Core Web Vitals before deploy • Developers shipping MCP / agent-skills / llms.txt for AI-agent integrations • Anyone who wants to see what an AI crawler sees on a given page - instantly 🚀 FAST. PRIVATE. THOROUGH. No signup. No payment. No paywall. Open the popup and see the score in two seconds. 🔗 More: https://seobrowser.ru 🐛 Issues: support@seobrowser.ru