Cookie Policy
Last updated: September 2026
What are cookies?
Cookies are small text files stored on your device when you visit a website. They allow the website to remember information about your visit — for example, which ads you have seen or how you arrived at the site.
This policy covers www.leangrowthlabs.ai and our offer pages on go.leangrowthlabs.ai. We also explain some similar browser storage we use.
Strictly necessary cookies
We set one essential cookie, which remembers whether you accepted or declined marketing cookies so we don't ask you on every page. It's shared across leangrowthlabs.ai sites, so your choice applies on both our main site and our offer pages. It doesn't need your consent.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| lgl_consent | Remembers your cookie choice ("granted" or "denied") across leangrowthlabs.ai sites. | 180 days | Lean Growth Labs |
When you pay or book a call, Stripe and Cal.com may set their own cookies on their pages or booking widget so the payment or booking works and to prevent fraud. These are covered by Stripe's and Cal.com's own cookie policies.
Analytics
We use Umami for website analytics. Umami is self-hosted on our own infrastructure — no data leaves our servers. Umami does not use cookies and does not collect any personally identifiable information. It tracks page views and referrers in aggregate only. No consent is required for Umami under PECR.
On go.leangrowthlabs.ai, Umami also records which buttons you click, which sections you view, how far you scroll, which FAQs you open and which checkout and booking steps you reach. None of this identifies you.
Session storage (not a cookie): on our offer pages we keep the campaign tags from the first link you clicked (for example utm_source=facebook) in your browser's session storage, under the name lgl_attr. Your browser deletes it when you close the tab. If you buy or book, we attach these tags to your order so we know which campaign worked. Advert click IDs (such as Facebook's) are only kept if you've accepted marketing cookies.
Marketing and advertising cookies
We use the Meta (Facebook) Pixel on www.leangrowthlabs.ai and go.leangrowthlabs.ai, and the LinkedIn Insight Tag on www.leangrowthlabs.ai, to measure how well our adverts work and to build audiences for future campaigns. These tools set cookies that may recognise your browser across sites and visits. On our offer pages, the Pixel records when you view the offer, start checkout, book a call and buy.
These cookies are only placed with your explicit consent, which is requested via the banner shown on your first visit to the site. You can withdraw or change your preference at any time using the preference panel below or through the browser and platform controls in the section that follows.
| Name | Purpose | Duration | Provider |
|---|---|---|---|
| _fbp | Facebook Pixel — identifies browsers to measure ad performance and build audiences. Set on www and go.leangrowthlabs.ai. | 90 days | Meta (Facebook) |
| _fbc | Facebook click ID — records the ad click that brought you to the site. Set on www and go.leangrowthlabs.ai. | 90 days | Meta (Facebook) |
| li_sugr | LinkedIn Insight Tag — probabilistic matching for ad measurement. | 90 days | |
| UserMatchHistory | LinkedIn Insight Tag — syncs LinkedIn member ID for ad attribution. | 30 days | |
| bcookie | LinkedIn browser ID cookie used for Insight Tag tracking. | 1 year | |
| li_gc | LinkedIn consent preference — records whether you have accepted LinkedIn cookies. | 6 months | |
| AnalyticsSyncHistory | LinkedIn — used to store information about the time a sync with the lms_analytics cookie took place. | 30 days |
If you accept, and then buy or book a call, we also send Meta a record of it from our own systems (Meta's Conversions API). Your email, phone and name are scrambled (hashed) first, and we send them with the _fbp/_fbc values and the order value. If you decline, we send nothing to Meta.
Manage your preferences
Use the controls below to accept or withdraw consent for marketing cookies at any time. Your choice is saved in the lgl_consent cookie, applies to both www.leangrowthlabs.ai and go.leangrowthlabs.ai, and takes effect straight away. If you withdraw consent, we also delete the Meta cookies. On our offer pages you can change your choice using the "Cookie settings" link in the footer.
Managing your cookies via browser settings
You can control and delete cookies through your browser settings:
Chrome: Settings → Privacy and security → Cookies and other site data
Firefox: Settings → Privacy & Security → Cookies and Site Data
Safari: Preferences → Privacy → Manage Website Data
Edge: Settings → Cookies and site permissions
You can also opt out of Meta advertising cookies at facebook.com/adpreferences and LinkedIn advertising cookies at linkedin.com/psettings/guest-controls.
Changes to this policy
We may update this policy as the site evolves or new tools are added. The date above reflects when it was last revised.
For questions about our use of cookies, email us at privacy@leangrowthlabs.ai. See also our Privacy Policy.