# What does Mdcalc use? Mdcalc (mdcalc.com) shows public evidence of 26 tools, according to runsonwhat (last checked 2026-10-20). - Industry: Healthcare - Size: 11–50 employees - Based in: New York, United States - Founded: 2005 - LinkedIn: https://www.linkedin.com/company/mdcalc ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code | | | [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Website code | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Custom domain, Website code | | ## 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 | | ## 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 | | | [FullStory](https://www.runsonwhat.com/reverse/fullstory) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-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 | | | [Wix](https://www.runsonwhat.com/reverse/wix) | Website & CMS | Custom domain | | | [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website code | | | [Microsoft Xandr](https://www.runsonwhat.com/reverse/xandr) | Ads & Pixels | Website code | | | [LinkedIn](https://www.runsonwhat.com/reverse/linkedin) | Marketing | DNS verification records | | | [Intercom](https://www.runsonwhat.com/reverse/intercom) | Support & Docs | Custom domain | | ## 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 | Custom domain, Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Cloudflare Turnstile](https://www.runsonwhat.com/reverse/turnstile) | Security & Compliance | Website code | | | [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records | | | [Osano](https://www.runsonwhat.com/reverse/osano) | Security & Compliance | Website code | | | [Paubox](https://www.runsonwhat.com/reverse/paubox) | Security & Compliance | Email records | | ## FAQ ### What tools does Mdcalc use? As of October 2026, runsonwhat has found 26 tools at Mdcalc (mdcalc.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon CloudFront. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Google Tag Manager and FullStory. Go-to-market: Microsoft Ads, LinkedIn Insight Tag and Mailchimp. Company Ops: Google Workspace, SendGrid and Apple Business. Last checked October 20, 2026. ### What cloud does Mdcalc run on? Mdcalc 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 mdcalc.com. Amazon Web Services is used by 145,982 companies runsonwhat tracks. ### What email provider does Mdcalc use? Mdcalc uses Google Workspace for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on mdcalc.com. Google Workspace is used by 405,354 companies runsonwhat tracks. ### What does Mdcalc use for customer support? Mdcalc uses Intercom for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Intercom through a subdomain that points at Intercom. Intercom is used by 8,912 companies runsonwhat tracks. ### What analytics tools does Mdcalc use? Mdcalc uses Google Analytics for analytics, alongside Google Tag Manager and FullStory, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on mdcalc.com. Google Analytics is used by 888,624 companies runsonwhat tracks. ### What is Mdcalc's website built with? Mdcalc uses Wix for its website, according to runsonwhat (October 2026). runsonwhat found Wix through a subdomain that points at Wix. Wix is used by 51,504 companies runsonwhat tracks. ### Does Mdcalc use Cloudflare? Yes. runsonwhat found Cloudflare at Mdcalc through DNS records that point at Cloudflare and code on mdcalc.com. Cloudflare is a CDN & Edge tool used by 707,904 companies runsonwhat tracks. ### Which companies have a tech stack similar to Mdcalc's? The companies with the stacks most like Mdcalc's are KBCS, Pediatric Development Center, Central Texas Speech Pathology Services and Villa Serena Healthcare Center, according to runsonwhat (October 2026). Each shares 1 to 4 tools with Mdcalc, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Mdcalc uses? runsonwhat reads public records only. Of the 26 tools at Mdcalc, 13 were found through code on mdcalc.com, 5 through DNS records, 4 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 mdcalc.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/mdcalc.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.