# What does Zed use? Zed (zed.dev) shows public evidence of 20 tools, according to runsonwhat (last checked 2026-10-21). ## 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 | |---|---|---|---| | [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 | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | | [Amplitude](https://www.runsonwhat.com/reverse/amplitude) | Analytics | Website code | | | [Instatus](https://www.runsonwhat.com/reverse/instatus) | Monitoring | Custom domain | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Reddit Ads](https://www.runsonwhat.com/reverse/reddit-ads) | Ads & Pixels | Website code | | | [MailerLite](https://www.runsonwhat.com/reverse/mailerlite) | Marketing | Email 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 | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [1Password](https://www.runsonwhat.com/reverse/1password) | Security & Compliance | DNS verification records | | | [Rippling](https://www.runsonwhat.com/reverse/rippling) | People & HR | DNS verification records | | | [SentinelOne](https://www.runsonwhat.com/reverse/sentinelone) | Security & Compliance | DNS verification records | | ## Recent changes at Zed - 2026-10-21: started using [llms.txt](https://www.runsonwhat.com/reverse/llms-txt) ## FAQ ### What tools does Zed use? As of October 2026, runsonwhat has found 20 tools at Zed (zed.dev) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Google Analytics, Sentry and Amplitude. Go-to-market: Reddit Ads and MailerLite. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 21, 2026. ### What cloud does Zed run on? Zed uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a DNS verification record for Vercel. Vercel is used by 48,392 companies runsonwhat tracks. ### What email provider does Zed use? Zed uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 712,542 companies runsonwhat tracks. ### What analytics tools does Zed use? Zed uses Google Analytics for analytics, alongside Amplitude, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on zed.dev. Google Analytics is used by 884,396 companies runsonwhat tracks. ### What marketing software does Zed use? Zed uses MailerLite for marketing, according to runsonwhat (October 2026). runsonwhat found MailerLite through email records that authorize MailerLite. MailerLite is used by 15,667 companies runsonwhat tracks. ### What does Zed use for hiring and HR? Zed uses Rippling for hiring and HR, according to runsonwhat (October 2026). runsonwhat found Rippling through a DNS verification record for Rippling. Rippling is used by 3,212 companies runsonwhat tracks. ### Does Zed use Cloudflare? Yes. runsonwhat found Cloudflare at Zed through DNS records that point at Cloudflare and code on zed.dev. Cloudflare is a CDN & Edge tool used by 705,302 companies runsonwhat tracks. ### Has Zed changed tools recently? Yes. On runsonwhat's rechecks, Zed started using llms.txt (latest on October 21, 2026). A change counts only between two checks of zed.dev done the same way. ### Which companies have a tech stack similar to Zed's? The companies with the stacks most like Zed's are Escare, Morphisec, Cyproteck Technologies and Carden IT Services, according to runsonwhat (October 2026). Each shares 3 to 8 tools with Zed, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Zed uses? runsonwhat reads public records only. Of the 20 tools at Zed, 8 were found through DNS records, 7 through code on zed.dev, 3 through email records, 1 through website configuration files and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and zed.dev about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/zed.dev (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.