Cookie Policy

Last updated: October 19, 2025

This Cookie Policy explains how Smog AI ("we", "our", or "us") uses cookies and similar tracking technologies when you use our website and application.

1. What Are Cookies?

Cookies are small text files stored on your device (computer, tablet, or mobile) when you visit a website. They help websites remember information about your visit, making your next visit easier and the site more useful to you.

2. Types of Cookies We Use

Essential Cookies (Required)

These cookies are necessary for the website to function properly. They enable core functionality such as security, authentication, and accessibility.

  • Session Cookies: Keep you logged in during your session
  • Security Cookies: Detect authentication abuse and protect your account
  • Load Balancing: Distribute site traffic efficiently

These cookies cannot be disabled as they are essential for the service to work.

Analytics Cookies (Optional)

These cookies help us understand how visitors interact with our website, helping us improve user experience.

  • Usage Analytics: Track pages visited, time spent, and user flows
  • Performance Monitoring: Identify technical issues and errors
  • A/B Testing: Test different versions of features to improve UX

Providers: Google Analytics, PostHog, or similar analytics platforms

Functional Cookies (Optional)

These cookies enable enhanced functionality and personalization.

  • Preferences: Remember your settings (language, theme, etc.)
  • User Interface: Save your UI customizations
  • Feature Toggles: Remember features you've enabled or disabled

Marketing Cookies (Optional)

These cookies track your browsing habits to deliver personalized advertising.

  • Ad Targeting: Show relevant ads based on your interests
  • Retargeting: Display Smog AI ads on other websites you visit
  • Conversion Tracking: Measure effectiveness of marketing campaigns

Providers: Google Ads, Facebook Pixel, LinkedIn Insight Tag

3. Third-Party Cookies

We use services from trusted third-party providers who may set cookies on your device:

ProviderPurposeType
StripePayment processing, fraud preventionEssential
Google AnalyticsWebsite analytics, user behavior trackingAnalytics
VercelHosting, performance monitoringEssential
PostHogProduct analytics, feature usageAnalytics

4. Local Storage and Similar Technologies

In addition to cookies, we may use:

  • Local Storage: Store user preferences and app state locally in your browser
  • Session Storage: Temporary storage for the duration of your session
  • IndexedDB: Store larger amounts of structured data for offline functionality

5. How Long Do Cookies Last?

Session Cookies

Deleted automatically when you close your browser

Persistent Cookies

Remain on your device for a set period (from days to years) or until you delete them. Common durations:

  • Authentication: 30 days
  • Preferences: 1 year
  • Analytics: 2 years
  • Marketing: 90 days to 2 years

6. Managing Your Cookie Preferences

Cookie Consent Banner

When you first visit Smog AI, you'll see a cookie consent banner. You can:

  • Accept all cookies
  • Reject optional cookies (only essential cookies will be used)
  • Customize your preferences by cookie category

You can change your preferences at any time from your account settings.

Browser Settings

Most browsers allow you to control cookies through their settings:

  • Chrome: Settings → Privacy and security → Cookies
  • Firefox: Settings → Privacy & Security → Cookies and Site Data
  • Safari: Preferences → Privacy → Cookies and website data
  • Edge: Settings → Cookies and site permissions

Note: Blocking essential cookies may prevent you from using Smog AI.

7. Do Not Track (DNT)

Some browsers support a "Do Not Track" (DNT) signal. Currently, there is no industry standard for how to respond to DNT signals. We do not currently respond to DNT browser signals, but we respect your cookie preferences set through our consent banner.

8. Updates to This Cookie Policy

We may update this Cookie Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Please review this policy periodically.

9. Contact Us

If you have questions about our use of cookies: