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Cookie Policy

Last updated: October 27, 2026

1. What are cookies?

Cookies are small text files that a website places on your browser or device. We also use similar technologies, such as local storage, and this policy calls all of them “cookies.”

2. How Valency uses cookies

Valency Systems Inc. (“Valency,” “we”) uses cookies on valency.io and its subdomains to run the site, keep you signed in, protect our services, remember your preferences, understand how the site is used so we can improve it, and measure how well our advertising works.

Some of our cookies are set on the valency.io domain as a whole, which means your browser sends them to all Valency subdomains, including our marketing site, documentation and product. This lets us understand how visitors move between these parts of our service.

3. Types of cookies we use

CategoryPurposeCan you turn it off?
Strictly necessarySigning you in and keeping your session secure, protecting against bots and fraud, securing account invitations and connections to third-party AI clients, and determining your region so we know whether to ask for your cookie consentNo. The site won’t work without them
FunctionalRemembering your settings, such as the sign-in method you last usedYes
AnalyticsMeasuring traffic and feature usage so we can improve our productsYes
AdvertisingMeasuring how well our ads on Meta, LinkedIn and X work, by recording visits to our marketing website from people who saw or clicked themYes

5. Cookies we set

Strictly necessary

NameProviderPurposeDuration
__client, __client_uat, __client_uat_<id>ClerkIdentifies your browser to our sign-in service and records when you last signed in, so our sites can tell whether you are signed inYour signed-in session expires after 7 days
The cookies stay in your browser for up to 400 days
__session, __session_<id>, __clerk_handshake, __clerk_handshake_nonce, clerk_active_contextClerkKeeps you signed in, completes sign-in securely, and remembers which account or organization is activeSeconds to session
__cf_bm, _cfuvidClerk (via Cloudflare)Protects the sign-in service against bots and abuse30 minutes / session
valency_invite_code, valency_claim_state, valency_claim_return, valency_claim_rtValencySecures account invitations and account claims5 minutes to 1 hour
__Host-valency_mcp_oauth_consent_<state>ValencyProtects the approval screen when you connect an AI client to Valency10 minutes
cf_clearanceCloudflareSet only if you complete a security challenge, to confirm you are not a botAbout 30 minutes
countryValencyRecords your country so we know whether to ask for cookie consent1 day
Local storage: valency_cookie_consent, valency_ads_consentValencyRemember your analytics and advertising consent choices so we don’t ask you again on every visitUntil you clear your browser storage

Functional

NameProviderPurposeDuration
valency_last_providerValencyRemembers which sign-in method you last used1 year
Local storage: __clerk_environmentClerkStores the settings our sign-in service needs so sign-in pages load quicklyUntil you clear your browser storage
Local storage: starlight-themeValencyRemembers whether you chose light or dark mode in our documentationUntil you clear your browser storage
Local storage: welcome overlayValencyRemembers that you have closed the welcome message so we don’t show it againUntil you clear your browser storage

Analytics

NameProviderPurposeDuration
ph_phc_…_posthog, ph_phc_…_posthog_cpmPostHogMeasures how visitors use our website, documentation and product. Set on valency.io and sent to all Valency subdomains365 days
Local storage: ph_phc_…_posthog, __ph_opt_in_out_…PostHogMeasures product usage and records your analytics choiceUntil you clear your browser storage
Google Analytics cookiesGoogleHelp us understand how visitors use our services. Google’s use of this information is subject to the Google Analytics Terms of Use and the Google Privacy Policy. You can opt out with the Google Analytics Opt-out Browser Add-on
https://tools.google.com/dlpage/gaoptout		Set by Google

Advertising

We use the Meta, LinkedIn and X advertising pixels on our marketing website, not in our documentation or product.

NameProviderPurposeDuration
_fbp, _fbcMetaIdentifies your browser to Meta and, if you arrived by clicking a Meta ad, records that click, so Meta can tell us how well our ads perform90 days
li_fat_id, li_giantLinkedInSet only if you arrive by clicking a LinkedIn ad. Records that click so LinkedIn can tell us how well our ads perform7 to 30 days
_twpid, _twsid, _twclidXIdentifies your browser and visit to X and, if you arrived by clicking an X ad, records that click, so X can tell us how well our ads performUp to 390 days

Third-party cookies

Some features include content from other companies, which may set their own cookies. Their use of cookies is governed by their own policies.

NameProviderPurposeDuration
Fillout cookiesFilloutOperate the feedback form in our product
https://www.fillout.com/privacy		Set by Fillout
YouTube player storageGoogle (YouTube)Play embedded videos in our documentation (privacy-enhanced mode; set only after you play a video) https://policies.google.com/privacySet by Google
Sign-in provider cookiesGoogle, Microsoft, GitHubSign you in when you choose to sign in with one of these providers. Set on the provider’s own website.
https://policies.google.com/privacy
https://www.microsoft.com/en-us/privacy/privacystatement
https://docs.github.com/en/site-policy/privacy-policies/github-cookies		Set by the provider
Advertising platform cookiesMeta, LinkedIn, XSet on the platform’s own website when our advertising pixels load, so the platform can link your visit to ads you saw there.
https://www.facebook.com/privacy/policies/cookies/
https://www.linkedin.com/legal/cookie-policy
https://help.x.com/en/rules-and-policies/x-cookies		Set by the provider

6. Services that do not use cookies

We also use some services that do not store cookies on your device but do receive information, such as your IP address, when you visit our sites:

  • Cloudflare Web Analytics counts page views without cookies.
  • Google Fonts provides typefaces for our marketing website, and your browser requests them from Google.
  • Hosting and content delivery providers, including Vercel, Cloudflare and Amazon Web Services, deliver our sites.

For more on these providers, see our Privacy Policy.

7. Managing your cookie settings

You can change or withdraw your consent at any time using the “Cookie settings” link in the footer of our website, which reopens our cookie consent banner, or by emailing privacy@valency.io. You can also block or delete cookies through your browser settings. If you block strictly necessary cookies, parts of the site may not work. Most browsers let you block all cookies, block third-party cookies only, or clear cookies when you close the browser. Instructions for common browsers: Google Chrome, Mozilla Firefox, Apple Safari and Microsoft Edge.

8. Changes to this policy

We may update this policy from time to time. The “Last updated” date at the top shows when it last changed.

9. Contact

Questions and requests can be sent to privacy@valency.io or by mail to Valency Systems Inc., 2168 Shattuck Ave., Suite 300, Berkeley, CA 94704. For more on how we handle personal data, see our Privacy Policy.