Seo Tools Pro — On Page A

SEO Tools PRO — Instant On-Page SEO Audit + Live Google Rank Tracker, Right In Your Browser.

The fastest way to audit any page's SEO and track Google rankings — free, unlimited, no login. Built for professionals who want answers, not a SaaS bill.

One click reveals everything that matters: title, meta, schema.org markup, Core Web Vitals, link health, image audit, keyword density, and a 100-point SEO score. Plus a live Keyword Rank Tracker that measures your TRUE organic position on 20+ Google domains — separated from the visual position that counts ads, AI Overview, and featured snippets above you.

▸ WHY TEAMS PICK SEO TOOLS PRO

• Free forever. No trial, no upsell, no upgrade prompts.
• Works in any country — 20 Google search domains, 8 native UI languages.
• Honest numbers. Organic position is reported separately from visual position.
• Privacy-first. Everything runs locally. No tracking by default.
• Lightweight. ~150 KB. Loads in milliseconds. Zero third-party libraries.

▸ LIVE GOOGLE RANK TRACKER (FLAGSHIP)

Enter a keyword + target domain. We open Google in a new tab and our content script reads the live SERP to compute:

• Your real ORGANIC position
• Your VISUAL position (counts ads, featured snippets, AI Overview, PAA, knowledge panel, image / video / news packs above you)
• Multi-occurrence warning when your domain ranks more than once
• AI Overview citation detection in 8 languages — knows when Google's AI cites your domain
• Visual overlay: #N badge next to every organic result, 🎯 sticker on your domain, sticky summary bar

Supports 20 Google domains: .com, .com.vn, .co.uk, .de, .fr, .es, .it, .com.au, .ca, .co.jp, .co.kr, .com.br, .com.mx, .com.tr, .com.sg, .com.hk, .co.in, .com.tw, .pl, .nl.

Multi-page accumulation: scroll to page 2, 3, 4 — we merge with a 30-minute freshness window. History of 50 checks with one-click re-scan.

▸ ON-PAGE SEO AUDIT

100-Point SEO Score — weighted across 16 factors with pass / warn / fail and an animated gauge. Click any quickstat to filter to just Passed, Warnings, or Failed.

Schema.org Reader — parses JSON-LD (including @graph and root arrays from Yoast / RankMath / Schema App), Microdata (itemscope / itemtype / itemprop), and RDFa Lite (typeof / property). Matches Schema.org Validator's entity count. Tree view shows nested entities (HowToStep × 4, Product Offer, Article author + publisher + ImageObject). One-click jump to Google Rich Results Test.

Core Web Vitals — LCP, CLS, INP measured with web.dev's official thresholds via PerformanceObserver. No third-party services.

Meta & Social Preview — pixel-accurate Open Graph and Twitter Card previews exactly as your link will look when shared. Title, meta description, canonical, robots, hreflang.

Link Inspector — every row shows anchor + URL. Click to expand: full URL, raw href, title, rel breakdown (nofollow / sponsored / ugc / noopener / noreferrer), target. Detects tabnabbing (target="_blank" without rel="noopener"). Filter by internal / external / nofollow / warnings.

Plus: Heading H1–H6 tree, image audit (alt / width / height / lazy-loading), readability (Flesch + reading time), keyword density (1- to 6-gram, 5 language stop-word lists auto-selected), technical health (HTTPS, viewport, robots.txt + sitemap.xml probe, mixed-content detector), page performance (TTFB / FCP / heaviest resources).

▸ EXPORT & WORKFLOW

• Export as JSON, CSV (formula-injection-protected for Excel safety), or self-contained HTML — ready for client deliverables
• 8 native UI languages: English, Vietnamese, German, French, Spanish, Japanese, Korean, Simplified Chinese
• Light / Dark / Auto theme — syncs with your OS in real time
• WCAG 2.2 AA accessibility — full ARIA tab pattern, keyboard nav, focus-visible, prefers-reduced-motion, forced-colors
• 10-tab dashboard in a 720 × 540 (4:3) popup that respects your eyes

▸ WHO IT'S FOR

• SEO specialists running dozens of on-page audits and rank checks per day
• Agencies producing client-facing audit + ranking reports
• Content writers checking meta, headings, and keyword balance before publish
• Web developers validating schema.org / JSON-LD / Microdata / RDFa output
• Vietnamese SEO consultants needing google.com.vn rank tracking with AI Overview detection
• Small-business owners who want a professional second opinion on their own site

▸ PRIVACY — HONEST DISCLOSURE

No account. No login. No profile. No tracking by default.

What runs locally only:
• On-page audit — reads the active tab when you click the icon
• Rank tracker — runs only on Google search pages you visit
• Rank history (50 entries) + affiliate click counters — stored on your device in chrome.storage; never transmitted

Optional diagnostic telemetry (OFF by default):
If you enable it in Settings, the extension logs anonymous scan-complete events (version, browser kind, sanitized score, counts) to a local 200-event ring buffer. URLs, hostnames, page contents auto-redacted. Optional self-hosted beacon endpoint — if blank, the log stays purely on your machine.

▸ AFFILIATE DISCLOSURE

The footer's Smart Tool Recommendations slot surfaces one context-aware partner suggestion based on the tab you're viewing — KWFinder when reviewing content, LinkMiner when auditing backlinks, SiteGround / Hostinger when reviewing performance, etc.

Partners: SE Ranking, Mangools (KWFinder, SERPChecker, SERPWatcher, LinkMiner, SiteProfiler), SiteGround, Hostinger, Make.com, Parallels, Envato.

Each link is clearly labeled "Affiliate" / "Quảng cáo" and includes affiliate tracking codes plus UTM tags. The partner sees that you arrived from this extension — never which page you were auditing. We earn a small commission if you sign up; the price you pay is the same. Toggle off anytime in Settings → "Tool recommendations".

▸ PERMISSIONS

• activeTab — read the focused tab when you click the icon
• scripting — inject the audit scanner
• storage — persist settings, 50-entry rank history, click counters
• downloads — export audits as JSON / CSV / HTML
• alarms — periodic freshness check for rank results
• Content scripts on Google search pages — required for live SERP rank tracking; runs only on the 20 listed Google domains, never any other site

▸ ABOUT

Built and maintained by VLINK ASIA — a Vietnam-based digital marketing studio focused on practical, no-nonsense SEO. Feedback and feature requests welcome at https://www.vlink.asia/en/seo-tools/seo-tools-check/

★ CHANGELOG

v2.7.0 — May 2026 (major release)
• NEW: Keyword Rank Tracker — type keyword + target domain, opens Google search, content script reports your real organic position with a visual SERP overlay (gutter #N badges, 🎯 sticker, sticky summary bar). Supports 20 Google domains.
• Smart SERP block classification: organic vs ad vs featured snippet vs AI Overview vs PAA vs knowledge panel vs image / video / news pack.
• AI Overview citation detector — 8-language heading-text matching, knows when Google's AI cites your domain.
• Multi-page accumulation: scroll to page 2, 3, 4 — results merged with 30-minute freshness window.
• Multi-occurrence warning when your domain ranks more than once on a page.
• History of last 50 checks with one-click re-scan per row.
• Smart Tool Recommendations in popup footer — context-aware partner suggestions (KWFinder when reviewing content, LinkMiner for backlinks, SiteGround / Hostinger for slow pages, etc.). Always disclosed as "Affiliate" / "Quảng cáo", always toggleable in Settings.
• 6 additional UI locales: German, French, Spanish, Japanese, Korean, Simplified Chinese (total 8 languages).
• Popup redesigned to 720 × 540 (4:3 ratio) for comfortable above-the-fold content density.
• 10-tab dashboard — Rank Tracker placed second after Overview for fast access.
• Opt-in diagnostic telemetry framework (OFF by default, local 200-event ring buffer, PII auto-redaction, optional self-hosted beacon).
• Refreshed branding + new icon set.

v2.3.2 — May 2026
• Link inspector overhaul: every row shows both anchor text AND URL, click to expand for full detail (anchor, URL, raw href, title, rel, target).
• Image-only anchors now surface the img alt attribute as fallback anchor text, with an indicator badge.
• Tabnabbing detection: flags target="_blank" links missing rel="noopener".
• Empty href and no-text warnings shown inline as badges.

v2.3.1 — May 2026
• Added 4-gram, 5-gram, and 6-gram long-phrase analysis with segmented switcher.

v2.3.0 — May 2026
• Core Web Vitals: LCP, CLS, INP with Google's official thresholds (web.dev/vitals).
• Mixed-content detector for HTTPS pages loading HTTP subresources.
• Multi-language stop-words: English, Vietnamese, Spanish, French, German (auto from HTML lang).
• Vietnamese popup UI via Chrome i18n — automatic for vi-* browser locales.
• Light / Dark / Auto theme with live system-theme syncing.

v2.2.x — May 2026
• Three-state scoring criteria (pass / warn / fail) replacing binary pass / fail.
• Quickstats clickable as filters.
• Tree view for nested schema entities.
• Full Microdata parser, RDFa Lite parser, recursive @type discovery in JSON-LD.

v2.2.0 — May 2026
• MV3 hardening, internationalization scaffold, stricter CSP, WCAG 2.2 AA accessibility, CSV injection-safe export, -700 KB legacy dependencies stripped (jQuery, Bootstrap, Font Awesome, Glyphicons).

v2.1.0 — May 2026
• Initial Chrome Web Store launch.