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RankNibbler
Free SEO Audit Tool — 30+ On-Page Checks, No Signup
RankNibbler is a completely free on-page SEO checker — no signup, no limits. Paste any URL and get an instant audit covering 30+ factors: title tags, meta descriptions, heading structure, image alt text, internal/external links, structured data, Open Graph tags, page speed, keyword density, readability, and more. Get an SEO score out of 100 with clear recommendations to fix every issue. Also includes a site crawler, bulk checker, SERP preview tool, schema generator, and AI-powered insights.
Hey Product Hunt! I built RankNibbler because I was tired of paying £100+/month for tools just to check basic on-page SEO. Most free tools only check 2-3 things —RankNibbler runs 30+ checks in seconds, completely free, no account needed.
It started as a simple meta tag checker for my own sites but grew into a full audit suite: site crawler, bulk URL checker, broken link finder, keyword rank tracker, schema generator, and more.
The AI insights feature gives you a plain-English breakdown of what to fix first.
Would love your feedback — what checks would you want added?
About RankNibbler on Product Hunt
“Free SEO Audit Tool — 30+ On-Page Checks, No Signup”
RankNibbler was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #296 on the daily leaderboard. RankNibbler is a completely free on-page SEO checker — no signup, no limits. Paste any URL and get an instant audit covering 30+ factors: title tags, meta descriptions, heading structure, image alt text, internal/external links, structured data, Open Graph tags, page speed, keyword density, readability, and more. Get an SEO score out of 100 with clear recommendations to fix every issue. Also includes a site crawler, bulk checker, SERP preview tool, schema generator, and AI-powered insights.
On the analytics side, RankNibbler competes within Marketing, SEO and Developer Tools — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how RankNibbler performed against the three products that launched closest to it on the same day.
Who hunted RankNibbler?
RankNibbler was hunted by nathan smith. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of RankNibbler including community comment highlights and product details, visit the product overview.
nathan smith