# What does Carbonmark use? Carbonmark (carbonmark.com) shows public evidence of 15 tools, according to runsonwhat (last checked 2026-10-30). - Industry: Environmental Services - Size: 11–50 employees - Based in: Sheridan, United States - Founded: 2023 - LinkedIn: https://www.linkedin.com/company/carbonmarkcom ## 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 | Custom domain, DNS verification records, DNS records, 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 | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [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 | |---|---|---|---| | [Zoho](https://www.runsonwhat.com/reverse/zoho) | Sales & CRM | Email records, Website code | | | [GitBook](https://www.runsonwhat.com/reverse/gitbook) | 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, Website code | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | Email records | | | [Resend](https://www.runsonwhat.com/reverse/resend) | Email Delivery | Email records | | ## FAQ ### What tools does Carbonmark use? As of November 2026, runsonwhat has found 15 tools at Carbonmark (carbonmark.com) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: web-vitals and PostHog. Go-to-market: Zoho and GitBook. Company Ops: Google Workspace, SendGrid and Resend. Last checked October 30, 2026. ### What cloud does Carbonmark run on? Carbonmark uses Vercel for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 51,635 companies runsonwhat tracks. ### What CRM does Carbonmark use? Carbonmark uses Zoho for its CRM, according to runsonwhat (November 2026). runsonwhat found Zoho through email records that authorize Zoho and code on carbonmark.com. Zoho is used by 63,826 companies runsonwhat tracks. ### What email provider does Carbonmark use? Carbonmark uses Google Workspace for email and office software, 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 413,313 companies runsonwhat tracks. ### What does Carbonmark use for customer support? Carbonmark uses GitBook for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found GitBook through a subdomain that points at GitBook. GitBook is used by 2,042 companies runsonwhat tracks. ### What analytics tools does Carbonmark use? Carbonmark uses PostHog for analytics, according to runsonwhat (November 2026). runsonwhat found PostHog through PostHog code on carbonmark.com. PostHog is used by 10,783 companies runsonwhat tracks. ### Does Carbonmark use Cloudflare? Yes. runsonwhat found Cloudflare at Carbonmark through DNS records that point at Cloudflare and code on carbonmark.com. Cloudflare is a CDN & Edge tool used by 726,832 companies runsonwhat tracks. ### Does Carbonmark use AI tools? Yes. runsonwhat has found Anthropic at Carbonmark; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Carbonmark may use more AI tools than these. ### Which companies have a tech stack similar to Carbonmark's? The companies with the stacks most like Carbonmark's are Day By Day, Planet Crust, Novel Wallet Pass and dapplooker.com, according to runsonwhat (November 2026). Each shares 4 to 6 tools with Carbonmark, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Carbonmark uses? runsonwhat reads public records only. Of the 15 tools at Carbonmark, 5 were found through code on carbonmark.com, 4 through DNS records, 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 carbonmark.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/carbonmark.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.