Subprocessors

These companies process personal data for MarkStack. We list them so business customers can review them, as our Data Processing Addendum describes. We choose providers with published privacy and security terms.

• Vercel: Hosting, serverless functions and Web Analytics. Data: All requests to the site, IP addresses, page views. Privacy policy.
• Neon: Database and sign-in (Neon Auth). Data: Account details, Business Profiles, credits, saved results, monitoring data. Privacy policy.
• Google (Gemini API): AI model that writes tool results. Data: Text and website content you submit to an AI tool. Privacy policy.
• OpenAI: AI visibility checks (only when enabled). Data: Brand and website names used in a check. Privacy policy.
• Resend / Brevo: Sending email (sign-in codes, alerts, digests, audit results). Data: Email address, name, email content. Privacy policy.
• Razorpay: Payments in rupees. Data: Payment details (handled by Razorpay), billing contact. Privacy policy.
• Paddle: Payments in dollars, seller of record, sales tax. Data: Payment details (handled by Paddle), billing contact. Privacy policy.
• Cloudflare: DNS, email forwarding and the Turnstile bot check on sign-up. Data: IP address, browser signals. Privacy policy.
• Upstash: Rate limiting (stores request counts against IP addresses). Data: IP addresses, request counts. Privacy policy.
• Sentry: Error monitoring (cookies, request bodies and personal details are stripped). Data: Error details, page address. Privacy policy.
• Google Analytics: Visit counts, loaded only if you accept analytics cookies. Data: Page views, device and approximate location. Privacy policy.
• Ahrefs Web Analytics: Cookieless visit counts. Data: Page views, no cookies. Privacy policy.

Changes

We update this page before we add or replace a subprocessor. To be told about changes, email hello@getmarkstack.com and we will add you to the list.