Privacy and compliance

Cookie consent checker

Detect whether a page renders a known cookie consent banner.

Free, no sign-up Runs on demand, nothing stored

Free tool vs Janitor

This free tool detects a banner from the homepage HTML only. Janitor checks for the banner across the site and pairs it with a real cold-visit crawl that confirms trackers are actually gated before consent.

See the full site-wide check in Janitor →
Sample result
moveinsights.co.uk
Consent banner
Banner found
Consent banner Detected
Platform Cookiebot

Your result

What this checks

Is there a consent banner at all

Under UK and EU rules, sites that set non-essential cookies generally need to show a consent banner. This tool reads a page HTML and detects whether a recognised consent banner library is present.

It checks for the same set of consent platforms Janitor monitors: CookieYes, Cookiebot, OneTrust, Klaro, Iubenda, Usercentrics, Osano and more.

Why it matters

The first thing a regulator checks

A missing or broken consent banner is a common UK GDPR problem, and it is the kind of thing a client gets a complaint about rather than a warning.

Banners are added and removed as sites change, so one that was in place can quietly disappear after a redesign or migration.

How to fix it

Put a real banner in front

1

Use a recognised consent platform

A known consent management platform handles the banner, the choices and the record-keeping for you.

2

Show the banner before tags load

A banner is only useful if non-essential tags wait for consent. Pair it with the pre-consent tracking check.

3

Re-check after redesigns

Migrations and theme changes are where a banner most often goes missing, so confirm it survived.

One of around two dozen checks

Cookie consent checker is one check

Janitor watches cookie consent banners automatically across every client site and puts it in a branded report you can send.

Keep reading

Related tools and guides

FAQ

Cookie consent checker FAQ

Which consent banners does it detect?

The same libraries Janitor monitors: CookieYes, Cookiebot, OneTrust, Klaro, Cookie Script, Iubenda, Usercentrics, tarteaucitron, Osano and more. A custom or server-rendered banner may not be detected.

Does a banner alone make a site compliant?

No. The banner has to actually gate non-essential tags before consent. Use the pre-consent tracking checker to see whether trackers load on a cold visit.

Can Janitor monitor this over time?

Yes. Janitor checks for the consent banner on every client site, so a banner that disappears after a change is flagged.

Get started

Check it once, or watch it for every client

Janitor runs around two dozen checks on every site you manage and turns them into a branded report.

30-day free trial. No credit card required.