SEO Audit Kit

Audit on-page SEO. Pay once, not every month.

A complete on-page SEO audit that runs right in your browser: meta tags, headings, SERP preview, broken links, hreflang, and schema. No subscription, no account, and nothing about the pages you audit ever leaves your machine.

Add to Chrome Free to install. No account required.

Features

A full on-page audit in one click

See your title, meta description, canonical, Open Graph, heading outline, images, and links checked against best practice the moment you open a page.

Preview your Google snippet

Watch how your title and description render on desktop and mobile, with pixel-width warnings so you fix truncation before you publish, not after.

Pro tools, one-time price

Unlock the broken-link checker, hreflang validator, structured-data validator, and internal link map with a single purchase. No subscription, ever.

Screenshots

On-page SEO overview showing title, meta description, canonical, Open Graph, and Twitter card checks
Every on-page signal, checked the moment you open a page.
SERP snippet preview showing a desktop Google result with title and description pixel-width bars
Live SERP snippet preview for desktop and mobile.
Broken-link checker results listing each link on the page with its HTTP status code
Find every broken link, with a status code for each one.
Structured-data validator showing JSON-LD types with required and recommended property checks
Validate structured data and hreflang for rich results.
Locked Pro panel showing the one-time 19.99 dollar upgrade with no subscription or account
Free forever. Unlock Pro once, with no subscription.

Pricing

Free

$0

  • On-page overview: meta, canonical, robots, social tags
  • Heading outline and image alt-text audit
  • Internal and external link breakdown
  • Desktop and mobile SERP snippet preview
  • Always functional, no time limit

Pro

$19.99 one time

  • Everything in Free
  • Broken-link checker with status codes
  • Hreflang validator
  • Structured-data validator (JSON-LD and microdata)
  • Internal link map and CSV / JSON export
  • No subscription, no account
Get started

Frequently asked questions

How do I audit on-page SEO with SEO Audit Kit?

Open the page you want to check and click the SEO Audit Kit icon. It reads the page in your browser and reports the title tag, meta description, canonical, heading structure, images and alt text, links, and a live Google snippet preview. Pro adds a broken-link scan, hreflang validation, structured-data checks, and an internal link map. Nothing is uploaded; every check runs locally.

Is SEO Audit Kit free?

Yes. The free tier is fully functional and covers the on-page overview, heading structure, images, links, and the SERP snippet preview. Pro is a single one-time purchase that unlocks the broken-link checker, hreflang validator, structured-data validator, and internal link map.

Do I need an account or a subscription?

No. There is no account and no subscription. Pro is a one-time purchase of $19.99 that unlocks the paid tools for good.

Does my page data leave my browser?

No. Every SEO check runs locally on the page you are viewing. The only data that leaves your browser is an anonymous license check and a small set of anonymous usage events that you can turn off in the options. See the privacy policy for details.

What does SEO Audit Kit check?

Title and meta description length, canonical and robots tags, Open Graph and Twitter cards, the H1 to H6 outline, image alt text, internal and external links, and a desktop and mobile SERP snippet preview. Pro adds broken-link detection with status codes, hreflang validation, JSON-LD and microdata validation, and an internal link map.

Which browsers are supported?

SEO Audit Kit supports Google Chrome and other Chromium-based browsers that can install extensions from the Chrome Web Store.

How do I get support?

Email [email protected] and we will get back to you.