Run a full SEO audit on any page in one click.

SEO Checker inspects the page you're on — titles, meta tags, headings, links, images and speed — and shows you exactly what to fix. No dashboards, no login.

Free forever Works on any site Runs 100% in your browser
20+SEO checks per page
<1sto a full report
0bytes of your data collected
Anywebsite you can open
Everything on one screen

The checks that actually move rankings.

Open the extension on any page and get a plain-language breakdown of what's working, what's weak, and what's broken.

On-page essentials

Title, meta description, canonical, robots and indexability — checked against best-practice lengths at a glance.

Heading outline

See the full H1–H6 structure of the page and catch missing, skipped or duplicated heading levels instantly.

Links audit

Count internal, external and broken links, and flag nofollow, redirects and links that go nowhere.

Images & alt text

List every image, highlight the ones missing alt attributes, and spot oversized files that slow the page down.

Social previews

Preview how the page appears when shared, and fix missing Open Graph and Twitter Card tags before it goes out.

Structured data

Detect Schema.org and JSON-LD markup and see exactly what search engines can read from your page.

Speed & Core Web Vitals

Load time, page weight and render-blocking resources, so you know what's dragging the experience down.

Keywords & content

Word count, keyword density and readability signals to check the page is actually about what you think it is.

Private by design

Every check runs locally on the page you're viewing. Nothing is uploaded, tracked or stored anywhere.

Three steps, no setup

From install to insights in seconds.

Add it to Chrome

Install free from the Chrome Web Store. No account, no permissions beyond the current tab.

Open any page

Head to any URL you want to check — your own landing page, a blog post, or a competitor's.

Click the icon

SEO Checker scans the page and hands you a full, prioritised report right there in the toolbar.

Under the hood

One click, the whole picture.

No tab-hopping between five different tools. SEO Checker pulls the signals that matter into a single panel you can read in a glance and act on the same minute.

Title & metaLength, duplication, presence
HeadingsFull H1–H6 outline
Canonical & robotsIndexability status
Open GraphSocial share preview
ImagesMissing alt, file sizes
LinksInternal, external, broken
Structured dataSchema.org / JSON-LD
PerformanceLoad time, page weight
MobileViewport & responsiveness
ContentWord count & keywords
HreflangLanguage targeting
Favicon & HTTPSBasic trust signals
Good to know

Questions, answered.

Is SEO Checker free?
Yes — it's free to install and free to use. Add it from the Chrome Web Store and start checking pages right away, with no trial and no paywall on the core checks.
Does it work on every website?
Any public web page you can open in Chrome can be checked — your own sites, client pages, or competitors. It reads the page that's already loaded in your tab, so there's nothing to configure per site.
Do I need to create an account?
No sign-up, no email, no login. Install the extension and it works immediately.
Where does my data go?
Nowhere. Every check runs locally in your browser on the page you're viewing. SEO Checker doesn't send page content to a server, doesn't track your browsing, and doesn't store your history.
Will it slow down my browsing?
No. It sits quietly in your toolbar and only analyses a page when you click the icon — so it has zero impact on normal browsing.
Does it only work in Chrome?
It's built for Chrome and also runs on Chromium-based browsers like Microsoft Edge, Brave and Arc that support Chrome Web Store extensions.

Check your first page in the next minute.

Add SEO Checker to Chrome and see what any page is missing.

Free forever · No account · No tracking