# What does Modal use? Modal (modal.com) shows public evidence of 31 tools, according to runsonwhat (last checked 2026-10-25). - Industry: Software - Size: 11–50 employees - Based in: New York, United States - LinkedIn: https://www.linkedin.com/company/modal-labs ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS verification records | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code | | | [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Lottie](https://www.runsonwhat.com/reverse/lottie) | Media & UI | Website code | | | [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [Three.js](https://www.runsonwhat.com/reverse/threejs) | Media & UI | Website code | | | [SvelteKit](https://www.runsonwhat.com/reverse/sveltekit) | Frontend | Website code | | | [turbopuffer](https://www.runsonwhat.com/reverse/turbopuffer) | Search | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code | | | [Better Stack](https://www.runsonwhat.com/reverse/betterstack) | Monitoring | Custom domain | 2023-02 | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code | | | [lemlist](https://www.runsonwhat.com/reverse/lemlist) | Sales & CRM | DNS verification records | | | [Pylon](https://www.runsonwhat.com/reverse/pylon) | Support & Docs | DNS verification records | | | [Plain](https://www.runsonwhat.com/reverse/plain) | Support & Docs | DNS verification records | | ## 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 | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | Email records, Website code | | | [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records | | | [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records | | | [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records | | | [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records | | | [Cursor](https://www.runsonwhat.com/reverse/cursor) | Dev Tools | DNS verification records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | 2025-06 | ## Recent changes at Modal - 2026-10-07: started using [llms.txt](https://www.runsonwhat.com/reverse/llms-txt) ## FAQ ### What tools does Modal use? As of October 2026, runsonwhat has found 31 tools at Modal (modal.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: GSAP, Adobe Fonts and Anthropic. Data & Observability: Sentry, Segment and Better Stack. Go-to-market: HubSpot, lemlist and Pylon. Company Ops: Microsoft 365, Google Workspace and Amazon SES. Last checked October 25, 2026. ### What cloud does Modal run on? Modal uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on modal.com. Amazon Web Services is used by 146,164 companies runsonwhat tracks. ### What CRM does Modal use? Modal uses HubSpot for its CRM, alongside lemlist, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on modal.com. HubSpot is used by 95,252 companies runsonwhat tracks. ### What email provider does Modal use? Modal uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 715,423 companies runsonwhat tracks. ### What does Modal use for customer support? Modal uses Pylon for customer support and documentation, alongside Plain, according to runsonwhat (October 2026). runsonwhat found Pylon through a DNS verification record for Pylon. Pylon is used by 145 companies runsonwhat tracks. ### What payment provider does Modal use? Modal uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on modal.com. Stripe is used by 30,151 companies runsonwhat tracks. ### How long has Modal used Better Stack? Modal has used Better Stack since at least February 2023, going by the first public certificate of the modal.com subdomain that points at Better Stack. Other long-running tools at Modal include Vanta (since June 2025). ### Does Modal use Cloudflare? Yes. runsonwhat found Cloudflare at Modal through a DNS verification record for Cloudflare. Cloudflare is a CDN & Edge tool used by 712,278 companies runsonwhat tracks. ### Does Modal use AI tools? Yes. runsonwhat has found Anthropic and OpenAI at Modal; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Modal may use more AI tools than these. ### Has Modal changed tools recently? Yes. On runsonwhat's rechecks, Modal started using llms.txt (latest on October 7, 2026). A change counts only between two checks of modal.com done the same way. ### Which companies have a tech stack similar to Modal's? The companies with the stacks most like Modal's are Kraken, Spacelift, Linear and Goldsky, according to runsonwhat (October 2026). Each shares 11 to 20 tools with Modal, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Modal uses? runsonwhat reads public records only. Of the 31 tools at Modal, 16 were found through DNS records, 9 through code on modal.com, 3 through email records, 2 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 modal.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/modal.com (updated October 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.