c15t
Deploy on Inth

Move to c15t with the team that builds it

Inth created c15t and maintains it. We plan and run your move from OneTrust, Cookiebot, Usercentrics or another consent platform, then support you under an SLA.

Talk to InthBook a call

A reply within one business daySOC 2 audit in progressOpen source

Banner on desktop
65ms
Fastest of 10 on Cookiebench. OneTrust: 672 ms.
Banner on a phone
241ms
On an emulated mid-tier phone. OneTrust: 4.13 s.

Running c15t in production

  • Expo
  • Zed
  • Mastra
  • Infisical
  • Unkey
  • Mintlify
  • Melius
  • RevisionDojo
  • Sazabi

Why teams bring the switch to Inth.

Enterprise consent is more than a banner. It touches every tag, region and team that ships to your sites.

  1. 01

    We wrote c15t

    Inth’s engineers created c15t and ship every release. Your questions go to the people who know the code, not to a queue that has to ask them.

  2. 02

    No gap in consent during the switch

    We map your categories, vendors and scripts from your current platform to c15t, so no tag fires before the visitor agrees, on the old setup or the new one.

  3. 03

    Your stack, your data

    Run c15t on Inth’s hosted platform or host it yourself. The code is open source, so you are never locked in to us either.

  4. 04

    Support with an SLA

    Enterprise agreements set response times in an SLA. The engineers who ship c15t answer, and they stay with you as you add sites, regions and integrations.

First on Cookiebench.

65ms

Cookiebench loads each consent manager 15 times on the same Next.js page and times how long its banner takes to appear. A visitor cannot accept or reject until then.

Desktop times read on 9 October 2026See the leaderboard

  1. c15t65 ms
  2. CookieYes321 ms
  3. Cookie Control399 ms
  4. iubenda436 ms
  5. Didomi498 ms
  6. Enzuzo507 ms
  7. Osano608 ms
  8. OneTrust672 ms
  9. Usercentrics703 ms
  10. Ketch1.72 s

Ready for your review.

The answers your security, legal and marketing teams ask for first.

  • SOC 2 audit in progress

    Send us your security questionnaire with your request. We complete it as part of the review.

  • Code your team can read

    c15t is open source. Your reviewers can read the code that records consent and gates scripts on GitHub.

  • Hosted or in your cloud

    Use Inth’s hosted platform, or run the c15t backend yourself so consent records stay in your own database.

  • A record of every choice

    The backend stores a consent record for each choice a visitor saves, so you can show what they agreed to.

  • IAB TCF

    For eligible projects, Inth provides the registered CMP for IAB TCF, so your ad partners get the signals they expect.

  • Google Consent Mode v2

    c15t starts Google tags with consent denied and sends Consent Mode v2 updates when the visitor chooses.

How a migration runs.

Each step has a check you can see before the next one starts.

  1. Step 01

    Audit

    We list every script, cookie and vendor your current platform controls, and where each one loads.

  2. Step 02

    Plan

    We map your categories, purposes and translations to c15t, and agree the banner design with your team.

  3. Step 03

    Run side by side

    c15t goes live on one site or region first. You check that tags wait for consent and compare consent rates.

  4. Step 04

    Switch off the old tool

    You remove the old platform’s script when the numbers match. We stay with you as you add sites, regions and integrations.

Talk to the c15t team.

Tell us about your sites and the consent tool you use today.

Christopher Burns on stage in a c15t T-shirt
Christopher Burns, founder of Inth and author of c15t
  • A reply within one business day.
  • A call with the engineers who build c15t, about your current setup.
  • A migration plan with dates for each step, and a quote.

Rather pick a time now? Book a call with Inth.

Sites, regions, frameworks, deadlines: anything that helps us prepare.

Inth uses your answers to reply to this request. Read the privacy policy.

What buyers ask first.

What does enterprise cost?

Enterprise is a custom agreement. It covers Inth’s hosted platform with Consent Pro, your migration and onboarding, and support under an SLA. We send a quote after the first call. The c15t packages stay free and open source.

Can you pass our security review?

Our SOC 2 audit is in progress. Send your security questionnaire with your request and we complete it. The code that records consent is open source, so your reviewers can read it.

Do we have to use Inth’s hosted platform?

No. You can use Inth’s hosted platform or host the c15t backend yourself. Enterprise support covers both.

How long does a migration take?

It depends on how many sites, regions and vendors you run. After the first call, we give you a plan with dates for each step.

How does c15t compare with our current tool?

Each comparison guide sets a tool beside c15t: when each one fits, what your team must own, and a test to run before you switch.

Which frameworks does c15t support?

Next.js, React, Nuxt, Astro, plain HTML and more. See the framework guides.

Is this legal advice?

No. Inth helps you implement and run consent. Your legal team decides the policy, and we make the product follow it.