# What does Rex AI Ltd use? Rex AI Ltd (rex.inc) shows public evidence of 18 tools, according to runsonwhat (last checked 2026-11-13). - Industry: Finance and Accounting - Size: 1–10 employees - Based in: Mildenhall, United Kingdom - Founded: 2026 - LinkedIn: https://www.linkedin.com/company/rex-ai-inc ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Custom domain | | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | Custom domain, DNS records, Website code | | | [Porkbun](https://www.runsonwhat.com/reverse/porkbun) | DNS | DNS records | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | 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 | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code | | | [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Mintlify](https://www.runsonwhat.com/reverse/mintlify) | Support & Docs | Custom domain | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | DNS verification records, Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Oneleet](https://www.runsonwhat.com/reverse/oneleet) | Security & Compliance | Custom domain, DNS verification records | | ## Recent changes at Rex AI Ltd - 2026-11-13: started using [Apple Business](https://www.runsonwhat.com/reverse/apple) ## FAQ ### What tools does Rex AI use? As of November 2026, runsonwhat has found 18 tools at Rex AI (rex.inc) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and web-vitals. Go-to-market: Mintlify. Company Ops: Google Workspace, Apple Business and Oneleet. Last checked November 13, 2026. ### What cloud does Rex AI run on? Rex AI uses Amazon Web Services for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services. Amazon Web Services is used by 147,732 companies runsonwhat tracks. ### What email provider does Rex AI use? Rex AI uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Google Workspace through a DNS verification record for Google Workspace and email records. Google Workspace is used by 423,466 companies runsonwhat tracks. ### What does Rex AI use for customer support? Rex AI uses Mintlify for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Mintlify through a subdomain that points at Mintlify. Mintlify is used by 1,256 companies runsonwhat tracks. ### What analytics tools does Rex AI use? Rex AI uses Google Analytics for analytics, alongside Google Tag Manager and PostHog, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on rex.inc. Google Analytics is used by 904,963 companies runsonwhat tracks. ### What does Rex AI use for login and identity? Rex AI uses WorkOS for sign-in and identity, according to runsonwhat (November 2026). runsonwhat found WorkOS through a subdomain that points at WorkOS. WorkOS is used by 652 companies runsonwhat tracks. ### Does Rex AI use Cloudflare? Yes. runsonwhat found Cloudflare at Rex AI through Cloudflare code on rex.inc. Cloudflare is a CDN & Edge tool used by 737,588 companies runsonwhat tracks. ### Has Rex AI changed tools recently? Yes. On runsonwhat's rechecks, Rex AI started using Apple Business (latest on November 13, 2026). A change counts only between two checks of rex.inc done the same way. ### Which companies have a tech stack similar to Rex AI's? The companies with the stacks most like Rex AI's are Pomerado, TesterArmy, The Context Company Technologies and Cohesion, according to runsonwhat (November 2026). Each shares 6 to 15 tools with Rex AI, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Rex AI uses? runsonwhat reads public records only. Of the 18 tools at Rex AI, 8 were found through code on rex.inc, 5 through subdomains that point at the vendor, 4 through DNS records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and rex.inc about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/rex.inc (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.