# What does Prelim use? Prelim (prelim.com) shows public evidence of 24 tools, according to runsonwhat (last checked 2026-11-06). - Industry: Fintech - Size: 11–50 employees - Based in: San Francisco, United States ## 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 | Website code | | | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain | 2019-10 | | [Vercel](https://www.runsonwhat.com/reverse/vercel) | Hosting & Cloud | DNS records, DNS verification records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | ## 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 | | | [incident.io](https://www.runsonwhat.com/reverse/incidentio) | Monitoring | Custom domain | 2021 | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records | | | [Intercom](https://www.runsonwhat.com/reverse/intercom) | Support & Docs | Email records | | | [ReadMe](https://www.runsonwhat.com/reverse/readme) | Support & Docs | Custom domain | 2021-03 | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [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 | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code | | | [Smartsheet](https://www.runsonwhat.com/reverse/smartsheet) | Collaboration | DNS verification records | | | [PowerDMARC](https://www.runsonwhat.com/reverse/powerdmarc) | Security & Compliance | Email records | | | [Notion](https://www.runsonwhat.com/reverse/notion) | Collaboration | DNS verification records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | 2025-01 | ## Recent changes at Prelim - 2026-11-06: stopped using [Beamer](https://www.runsonwhat.com/reverse/beamer) - 2026-11-06: stopped using [Stripe](https://www.runsonwhat.com/reverse/stripe) ## FAQ ### What tools does Prelim use? As of November 2026, runsonwhat has found 24 tools at Prelim (prelim.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Fonts and React. Data & Observability: Google Analytics, Google Tag Manager and incident.io. Go-to-market: Google Ads, LinkedIn Insight Tag and Mailchimp. Company Ops: Google Workspace, SendGrid and Apple Business. Last checked November 6, 2026. ### What cloud does Prelim run on? Prelim uses Amazon Web Services for hosting and cloud infrastructure, alongside Vercel, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on prelim.com. Amazon Web Services is used by 147,574 companies runsonwhat tracks. ### What email provider does Prelim use? Prelim uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on prelim.com. Google Workspace is used by 421,029 companies runsonwhat tracks. ### What does Prelim use for customer support? Prelim uses Intercom for customer support and documentation, alongside ReadMe, according to runsonwhat (November 2026). runsonwhat found Intercom through email records that authorize Intercom. Intercom is used by 9,201 companies runsonwhat tracks. ### What analytics tools does Prelim use? Prelim uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on prelim.com. Google Analytics is used by 904,002 companies runsonwhat tracks. ### What marketing software does Prelim use? Prelim uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 119,160 companies runsonwhat tracks. ### How long has Prelim used Amazon CloudFront? Prelim has used Amazon CloudFront since at least October 2019, going by the first public certificate of the prelim.com subdomain that points at Amazon CloudFront. Other long-running tools at Prelim include incident.io (since 2021), ReadMe (since March 2021) and Vanta (since January 2025). ### Does Prelim use Google Fonts? Yes. runsonwhat found Google Fonts at Prelim through Google Fonts code on prelim.com. Google Fonts is a Media & UI tool used by 825,672 companies runsonwhat tracks. ### Has Prelim changed tools recently? Yes. On runsonwhat's rechecks, Prelim stopped using Beamer and Stripe (latest on November 6, 2026). A change counts only between two checks of prelim.com done the same way. ### Which companies have a tech stack similar to Prelim's? The companies with the stacks most like Prelim's are Brass, Kajoo.ai, Mercury Technologies and Live Chat Software with AI by Text, according to runsonwhat (November 2026). Each shares 10 to 16 tools with Prelim, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Prelim uses? runsonwhat reads public records only. Of the 24 tools at Prelim, 8 were found through code on prelim.com, 7 through DNS records, 5 through email records and 4 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and prelim.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/prelim.com (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.