Do Usercentrics and CookieYes both support IAB TCF?

Both document it. Statuses come from vendor docs.

Do Usercentrics and CookieYes block trackers before consent?

Neither leaked a tracker in the checks that ran. We could not run 1 of 4 checks for CookieYes. Each check loads the page. Then it looks for trackers that ran, cookies that the page set or data that left the page before the visitor chose.

Usercentrics vs CookieYes: cookie banner speed and features compared

Results forFramework

On emulated mobile, CookieYes showed its banner sooner, in a median 2.42 s against 4.16 s for Usercentrics. CookieYes delayed the main content 668 ms less. Neither leaked a tracker in the checks that ran. We could not run 1 of 4 checks for CookieYes. Their documented features are the same in this comparison.

UsercentricsUsercentrics

Usercentrics Tested: Hosted
All Usercentrics results

CookieYesCookieYes

CookieYes Tested: Hosted
All CookieYes results

Which is faster, Usercentrics or CookieYes?

Shorter bars are better. The exception is tracker blocking, where the bar shows the share of checks passed.

Usercentrics and CookieYes on the mobile (emulated) profile, Next.js 16
Question	Usercentrics	CookieYes	Difference
Banner appearsTime from navigation until the banner is visible on screen. Lower is better.	4.16 sSlow	2.42 sFast	CookieYes’ banner appeared 1.74 s sooner.
Page slowed byExtra time before the main content paints (LCP), compared with the same page without a consent manager.	+844 ms95% interval 836 ms to 864 msNoticeable	+176 ms95% interval 148 ms to 212 msSmall	CookieYes delayed the main content 668 ms less.
Click responds inTime from pressing Accept until the screen updates. Under 200 ms feels instant.		24 msOne visit measuredFast	No comparison. Usercentrics has no result here, so we call neither one better.
Blocks trackersChecks that no tracker runs, the page sets no cookie and no data leaves the page before the visitor chooses.	4 of 4 checks passedBlocked	3 of 4 checks passed1 could not be checkedPartly checked	Neither leaked a tracker in the checks that ran. We could not run 1 of 4 checks for CookieYes.
Adds to pageExtra data transferred during the first load, compared with the same page without a consent manager.	+164 KB95% interval: 164 KBModerate	+31 KB95% interval: 31 KBLight	CookieYes added 133 KB less to the first load.

“About the same” means that the two results fall within each other’s spread. We measure both against the same page without a consent manager. We do not publish a direct head-to-head interval yet.

Page vitals and load times

Lab detail for engineers. All values are medians on the mobile profile. Both CMPs ran on Next.js 16.

Page vitalsChange against the same page without a consent manager.
Metric	Usercentrics	CookieYes
TTFB	No measurable delaypage 7 ms	No measurable delaypage 8 ms
FCP	No measurable delaypage 252 ms	No measurable delaypage 264 ms
LCP	+844 mspage 4.30 s	+176 mspage 3.64 s
CLS	No measurable shiftpage 0.00	No measurable shiftpage 0.00

Load timesMilliseconds from navigation.
Metric	Usercentrics	CookieYes
CMP script requested
CMP script loaded
Consent state known
Banner visible	4.16 s	2.42 s

After AcceptMilliseconds from the click.
Metric	Usercentrics	CookieYes
Screen responds		24 ms
Banner gone
Consent applied
Analytics active

Which features differ between Usercentrics and CookieYes?

Statuses come from each vendor’s documentation. Each status links to its source.

Verified by test
Per vendor docs
Partial
Not supported
Unknown

Features that differ between Usercentrics and CookieYes, from vendor docs
Feature	UsercentricsUsercentrics	CookieYesCookieYes
Not confirmed for one side · 4
IAB GPPStandards	v3 script tag (vendor documentation, opens in a new tab)	Unknown
Self-hostableDeveloper	Hosted backend (vendor documentation, opens in a new tab)	Unknown
Headless UIDeveloper	Per vendor docs (vendor documentation, opens in a new tab)	Unknown
TypeScript typesDeveloper	Per vendor docs (vendor documentation, opens in a new tab)	Unknown

Same on both · 12

Features with the same status for Usercentrics and CookieYes
Feature	UsercentricsUsercentrics	CookieYesCookieYes
IAB TCFStandards	Pro plan and up (vendor documentation, opens in a new tab)	Pro and Ultimate plans (vendor documentation, opens in a new tab)
Google Consent Mode v2Standards	Per vendor docs (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
Google-certified CMPStandards	Per vendor docs (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
Global Privacy ControlStandards	Per vendor docs (vendor documentation, opens in a new tab)	Pro and Ultimate plans (vendor documentation, opens in a new tab)
Geo-targeted bannersCompliance	Plus plan and up (vendor documentation, opens in a new tab)	Pro and Ultimate plans (vendor documentation, opens in a new tab)
Script blockingCompliance	Paid plans (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
Consent recordsCompliance	Kept 12 months (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
Cookie scanningCompliance	Per vendor docs (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
Open sourceDeveloper	Commercial licence (vendor documentation, opens in a new tab)	Proprietary (vendor documentation, opens in a new tab)
Free tierPricing	1,000 sessions a month (vendor documentation, opens in a new tab)	5,000 pageviews a month (vendor documentation, opens in a new tab)
Script tagFrameworks	Per vendor docs (vendor documentation, opens in a new tab)	Per vendor docs (vendor documentation, opens in a new tab)
First-party SDKsReact, Next.js, Vue, Nuxt, Svelte, SvelteKit, Astro, TanStack Start	Script tag only (vendor documentation, opens in a new tab)	Script tag only (vendor documentation, opens in a new tab)

Should you choose Usercentrics or CookieYes?

We built these lists from the measured and documented differences above. Neither list is a recommendation.

Choose Usercentrics if

Nothing measured or documented here favours Usercentrics. Decide on price, support and the tools that you already use

Choose CookieYes if

A fast banner matters to you: CookieYes’ banner appeared 1.74 s sooner
Page load time matters to you: CookieYes delayed the main content 668 ms less
Page weight matters to you: CookieYes added 133 KB less to the first load

What was tested?

Deployment: Both ran from their vendor-hosted services. Network distance to each vendor is part of the result.

How we test: methodology cookiebench-v3.2.4

Questions about Usercentrics and CookieYes

Answers come from the benchmark run and from each vendor’s documentation.

Report a correction

On the emulated mobile profile, CookieYes’ banner appeared in a median 2.42 s and Usercentrics’ in 4.16 s. CookieYes delayed the main content 668 ms less.