# What does Rulebase Technologies Inc. use? Rulebase Technologies Inc. (rulebase.co) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-11-10). - Industry: Operations - Size: 1–10 employees - Based in: New York City, United States ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS verification records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [YouTube](https://www.runsonwhat.com/reverse/youtube) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [WorkOS](https://www.runsonwhat.com/reverse/workos) | Auth & Identity | Custom domain | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code | | | [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code | | | [Better Stack](https://www.runsonwhat.com/reverse/betterstack) | Monitoring | Custom domain | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Email records | | | [Cal.com](https://www.runsonwhat.com/reverse/calcom) | Sales & CRM | Website code | | | [Ghost](https://www.runsonwhat.com/reverse/ghost) | Website & CMS | Custom domain | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records | | | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | | [Oneleet](https://www.runsonwhat.com/reverse/oneleet) | Security & Compliance | Custom domain, DNS verification records | | ## Recent changes at Rulebase Technologies Inc. - 2026-11-03: stopped using [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) - 2026-10-09: started using [Zoho](https://www.runsonwhat.com/reverse/zoho) ## FAQ ### What tools does Rulebase Technologies use? As of November 2026, runsonwhat has found 19 tools at Rulebase Technologies (rulebase.co) in public records. Edge & Hosting: Cloudflare and Vercel. Application: YouTube, React and Next.js. Data & Observability: web-vitals, PostHog and Better Stack. Go-to-market: Zoho, Cal.com and Ghost. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked November 10, 2026. ### What cloud does Rulebase Technologies run on? Rulebase Technologies uses Vercel for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Vercel through a DNS verification record for Vercel. Vercel is used by 53,516 companies runsonwhat tracks. ### What CRM does Rulebase Technologies use? Rulebase Technologies uses Zoho for its CRM, alongside Cal.com, according to runsonwhat (November 2026). runsonwhat found Zoho through email records that authorize Zoho. Zoho is used by 65,489 companies runsonwhat tracks. ### What email provider does Rulebase Technologies use? Rulebase Technologies uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 736,662 companies runsonwhat tracks. ### What analytics tools does Rulebase Technologies use? Rulebase Technologies uses PostHog for analytics, according to runsonwhat (November 2026). runsonwhat found PostHog through PostHog code on rulebase.co. PostHog is used by 10,963 companies runsonwhat tracks. ### What is Rulebase Technologies's website built with? Rulebase Technologies uses Ghost for its website, according to runsonwhat (November 2026). runsonwhat found Ghost through a subdomain that points at Ghost. Ghost is used by 903 companies runsonwhat tracks. ### Does Rulebase Technologies use Cloudflare? Yes. runsonwhat found Cloudflare at Rulebase Technologies through DNS records that point at Cloudflare and code on rulebase.co. Cloudflare is a CDN & Edge tool used by 735,264 companies runsonwhat tracks. ### Has Rulebase Technologies changed tools recently? Yes. On runsonwhat's rechecks, Rulebase Technologies started using Zoho (latest on October 9, 2026) and stopped using Amazon Web Services (latest on November 3, 2026). A change counts only between two checks of rulebase.co done the same way. ### Which companies have a tech stack similar to Rulebase Technologies's? The companies with the stacks most like Rulebase Technologies' are Automat, Regbase, Asteroid and Artos, according to runsonwhat (November 2026). Each shares 9 to 11 tools with Rulebase Technologies, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Rulebase Technologies uses? runsonwhat reads public records only. Of the 19 tools at Rulebase Technologies, 6 were found through code on rulebase.co, 4 through DNS records, 4 through email records, 4 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and rulebase.co about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/rulebase.co (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.