RankParse SEO Toolkit

Free on-page SEO analysis + domain intelligence powered by RankParse

RankParse SEO Toolkit is a free SEO Chrome extension that gives you instant on-page SEO analysis, domain authority scores, backlink data, and SERP metrics - all without leaving the page you're on. Used by SEOs, content marketers, and developers who want a fast, no-bloat alternative to bulky SEO toolbars. ────────────────────── FREE ON-PAGE SEO ANALYSIS ────────────────────── Run a full SEO audit on any webpage instantly: • Meta tag analyzer — checks title length, meta description, and OG tags; flags missing values • Canonical tag checker — detects non-self canonicals that bleed link equity to other URLs • Robots meta tag inspector — surfaces noindex and nofollow directives immediately • Heading structure audit — H1, H2, and H3 counts with H1 text preview • Image SEO audit — finds every image missing alt text, with width × height dimensions • Link analysis — total, internal, external, dofollow, nofollow, sponsored, and UGC link counts • Broken link checker — HEAD-checks up to 20 external links on demand, no server needed • Schema markup detector — confirms whether structured data is present on the page No API key required. All page-level analysis runs locally in your browser. ────────────────────── DOMAIN AUTHORITY CHECKER + BACKLINK CHECKER ────────────────────── Connect your free RankParse API key to unlock: • Domain Authority score (DA 0–100) — built on open database link graph, updated quarterly • Backlink count and referring domain count for any site • Tech stack detector — identifies CMS, frameworks, analytics tools, and CDNs • Domain age and registrar lookup (via RDAP) • Top 100 backlinks with per-domain DA scores and anchor text — exportable to CSV Results are cached for 24 hours. You're never charged twice for the same domain. No API key? The free tier shows DA + backlinks for up to 10 domains per day at no cost. ────────────────────── SERP SEO METRICS — GOOGLE SEARCH INTEGRATION ────────────────────── • Domain authority scores appear directly on Google search results for all 10 organic listings • Built-in SERP country and language switcher — flip the gl/hl parameters without editing the URL ────────────────────── PERSISTENT METRICS BAR ────────────────────── Enable the metrics bar to show DA, backlinks, and referring domains pinned to the top of every site you visit — no popup needed. ────────────────────── WHY RANKPARSE? ────────────────────── Most SEO browser extensions are either paywalled from day one or rely on expensive third-party APIs that inflate pricing. RankParse is powered by open source public databases — which lets us offer real backlink and domain authority data at a fraction of the cost of Ahrefs, Moz, or Semrush browser extensions. ────────────────────── PRIVACY & DATA ────────────────────── • On-page SEO analysis runs entirely in your browser — zero data leaves your device • Domain data is only fetched from api.rankparse.com when you explicitly request it • No browsing history is stored or transmitted • Your API key is saved locally in Chrome storage — never sent to any third party Get your free API key at rankparse.com