No extensions to install. No login. No monthly fee. Build once, use forever, on any page you can open.

RAMBO is a free SEO audit bookmarklet. a single piece of JavaScript saved as a browser bookmark. Click it on any page and you get the complete on-page picture in under a second. It’s like a mini SEO Audit.

RAMBO is built for people who need to know what’s actually on a page at a given moment, without opening a spreadsheet or waiting for a crawl to finish. It could be for:

• Freelance SEOs doing a quick audit before writing a proposal
• In-house marketers checking what a developer actually shipped
• Agency account managers verifying deliverables without a technical tool
• Anyone reviewing a competitor’s page and wanting to know exactly how it’s structured
• Business owners who’ve spent money on an SEO agency and want to verify what they’re being told
• Journalists and content strategists checking page structure before pitching.

One click runs eight distinct checks and surfaces a prioritised list of criticals and warnings. Here’s exactly what RAMBO analyses:

1. Page Title & Length

RAMBO extracts the full page title and flags it if it’s missing.  The title tag is the single most direct on-page ranking signal getting it wrong is getting the basics wrong.

2. Meta Description

Pulls the meta description and checks whether it exists and whether it’s within the optimal 150–160 character range. A missing meta description means Google will auto-generate one.

3. Heading Structure (H1–H6)

RAMBO shows your complete heading hierarchy every H1 through H6 on the page, in order, with a text preview. It flags if there’s no H1 (a critical issue Google is now guessing what the page is about), or if there are multiple H1s (a structural error that dilutes your topical signal). Headings are how both users and search engines navigate the architecture of a page.

4. Canonical URL

Checks whether a canonical tag exists and shows you exactly what URL it’s pointing to. Without a canonical, if this page exists at multiple URLs  www and non-www, trailing slash and no slash, HTTP and HTTPS,  Google has to guess which version to index and rank. It often guesses wrong, or splits your ranking signals across versions.

5. JSON-LD Schema Markup

Extracts and displays all structured data on the page. Schema markup is how you give Google unambiguous context about what a page is — a product, a recipe, an FAQ, a local business, a software application. Without it, Google has to infer. Schema also enables rich results: star ratings, FAQ dropdowns, product prices in the SERP. It’s consistently underused on pages that would directly benefit from it.

6. Image Analysis

Counts every image on the page and flags any that are missing alt text. Alt text matters for two distinct reasons: it’s how Google Image Search understands and indexes your images, and it’s a legal accessibility requirement in many jurisdictions. RAMBO shows you the total image count and the exact number missing alt attributes so you know the scale of the fix.

7. Word Count

Counts the total visible words on the page what a user actually reads, not what’s in the HTML. This is a rough content depth signal. Under 300 words on a page competing for informational queries is thin. RAMBO shows you the number so you can make an informed call rather than guessing.

8. Internal & External Links

Counts how many links on the page point to other pages on the same domain (internal) and to other domains (external). Internal linking is how PageRank flows through your site and how Google discovers connected content. Very few internal links on a content page is a signal that your site’s link architecture isn’t working for you.

Step 1: Show your browser’s bookmarks bar if it’s hidden. In Chrome: View → Always Show Bookmarks Bar. In Firefox: View → Toolbars → Bookmarks Toolbar.

Step 2: Copy the RAMBO code from the box below, click the box to select all, then copy.

Step 3: Right-click your bookmarks bar and choose “Add page” or “New bookmark”.

Step 4: In the Name field, type “RAMBO”. In the URL field, delete whatever is there and paste the code you copied.

Step 5: Save. Navigate to any page. Click RAMBO in your bookmarks bar. The audit overlay appears instantly.

Note: You only do this once. The bookmarklet works on every page, on every site, in every browser session until you delete it.

Frequently Asked Questions RAMBO SEO Audit Tool

Is the RAMBO SEO Audit tool actually free?

Yes. No trial, no freemium, no feature gate. Copy the code, install it, use it. Free forever.

Does RAMBO work on password-protected or login-required pages?

Yes because RAMBO runs in your browser, it sees exactly what your browser sees. If you’re logged in to a staging site or a members-only section, RAMBO can audit that page. Extensions that send your URL to a server for analysis can’t do this.

Can I use RAMBO to audit competitor pages?

Yes. Navigate to any page in your browser and click RAMBO. It works on any publicly accessible URL — including competitor sites, industry publications, and pages you’re researching for a content gap analysis.

Does RAMBO check Core Web Vitals or page speed?

Not currently, Core Web Vitals require a separate server-side performance measurement that a client-side bookmarklet can’t do accurately. For page speed, use Google’s PageSpeed Insights alongside RAMBO. They’re complementary, not competing.

What browsers does RAMBO work in?

Any modern browser that supports JavaScript bookmarklets — Chrome, Firefox, Edge, Safari, Brave, Arc. If you can bookmark a page, you can install RAMBO.

Will RAMBO ever break due to browser updates?

Possibly, eventually, but bookmarklets that use standard DOM APIs are extremely stable. RAMBO uses only the most fundamental browser APIs (querySelector, getElementsByTagName, JSON.parse) that have been standard since the early 2000s. It’s designed to keep working without maintenance.

Can I use RAMBO on mobile?

Technically yes on desktop browsers opened on mobile, but the overlay is optimised for desktop viewport widths. For mobile audits, use it on a desktop browser.