# Ultimate SEO > The most comprehensive SEO analysis extension. View complete on-page SEO details instantly — meta tags, headings, links, images, schema, social tags, performance, readability, and more. By IdeaMAX. Canonical page: [https://chrome-stats.com/d/ultimate-seo](https://chrome-stats.com/d/ultimate-seo) ## Overview - **ID:** `ultimate-seo` - **Platform:** Firefox - **Type:** Firefox add-on - **Status:** Available - **Publisher:** IDEAMAX - **Category:** web-development,search-tools,alerts-updates - **Daily users:** 8 - **Weekly downloads:** 1 - **Rating:** 5.00 / 5 (1 ratings) - **Version:** 1.2.0 - **Last updated:** 2026-02-23 - **First published:** 2026-02-17 - **Size:** 40 KB - **Data as of:** 2026-09-09 - **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ultimate-seo/) - **Website:** [https://ideamax.eu/](https://ideamax.eu/) - **Privacy policy:** [https://addons.mozilla.org/firefox/addon/ultimate-seo/privacy/](https://addons.mozilla.org/firefox/addon/ultimate-seo/privacy/) ## Description Ultimate SEO Details gives you a complete SEO audit of any page in one click - no accounts, no API calls, no data ever leaving your browser. 10 analysis tabs: - Overview: SEO score with pass/fail checks at a glance - Meta: Title, description, robots, canonical, hreflang, viewport + Google SERP preview - Headings: Full H1-H6 hierarchy with structure validation - Links: Internal/external breakdown, nofollow/sponsored/UGC detection, anchor text - Images: Alt text audit, lazy loading, next-gen format detection, missing dimensions - Schema: JSON-LD, Microdata & RDFa parsing with syntax highlighting and type detection - Social: Open Graph & Twitter Card tags with visual share preview - Speed: Page load timing, TTFB, resource counts, render-blocking detection, resource hints - Content: Word count, readability scores (Flesch-Kincaid, Gunning Fog), keyword density, E-E-A-T signals - Tech: HTTP response headers, security headers audit, technology stack detection, accessibility checks Extra features beyond competing extensions: - SERP snippet preview with truncation warnings - Readability scoring (Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog Index) - E-E-A-T signal assessment (author, about page, contact, privacy policy, publication dates) - Technology stack detection (CMS, frameworks, analytics, CDNs, CSS frameworks) - Security headers audit (HSTS, CSP, X-Content-Type-Options, X-Frame-Options) - Keyword density analysis with visual bars - Content-to-HTML ratio calculation - One-click report export - Dark/light theme toggle - Copy any data point to clipboard 100% private. Zero data collection. Everything runs locally in your browser. Developed by IdeaMAX — https://ideamax.eu/ ## Rankings - #36,463 — Overall - #36 — seo - #44 — fogli ## Permissions and access ### Permissions - `activeTab` - `webRequest` - `tabs` - `contextMenus` - `http://*/*` - `https://*/*` ## Safety - **Risk impact:** High risk impact - **Risk likelihood:** Moderate risk likelihood ### Analysis details - Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern. - This extension has low user count. Unpopular extensions may not be stable or safe. > Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing). ## Similar extensions and apps - [Ultimate SEO](https://chrome-stats.com/d/ultimate-seo-details) — 8 users, 5.00 / 5 - [SEO Extension – All-in-One SEO Toolkit](https://chrome-stats.com/d/seo-extension-all-in-one-seo) — 17 users, 5.00 / 5 - [SEO Check by Gyaner](https://chrome-stats.com/d/seo-check-by-gyaner) — 3 users, 5.00 / 5 - [SEO Hood – SEO Checker Extension](https://chrome-stats.com/d/seo-hood-seo-checker-extension) — 4 users - [NinjaSEO: Ultimate SEO Swiss](https://chrome-stats.com/d/ninjaseo-ultimate-seo-swiss) - [SEO Website Scanner: Meta, Headings, etc.](https://chrome-stats.com/d/seo-website-scanner) — 213 users, 5.00 / 5 - [SEOMeter – Complete SEO Audit Toolkit](https://chrome-stats.com/d/seometer) — 1 users, 5.00 / 5 - [SEO Analysis & Audit: WebCheck360 Insights](https://chrome-stats.com/d/seo-analysis-webcheck360) — 17 users - [SEO Health Checker - On-Page SEO Audit](https://chrome-stats.com/d/seo-health-checker-on-page-seo) — 9 users, 5.00 / 5 - [Minorank SEO Inspector](https://chrome-stats.com/d/minorank-seo-inspector) — 1 users - [SEO Analyzer Tools](https://chrome-stats.com/d/seo-analyzer-tools) — 10 users - [SEO Audit Pro - On-Page SEO Auditor](https://chrome-stats.com/d/seo-audit-pro-on-page-seo) — 3 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/ultimate-seo)