# What does Sleuth use? Sleuth (sleuth.io) shows public evidence of 27 tools, according to runsonwhat (last checked 2026-11-06). - Industry: Software - Size: 11–50 employees - Based in: San Francisco, United States - Founded: 2019 - LinkedIn: https://www.linkedin.com/company/sleuth-io ## 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 | 2019-11 | | [Netlify](https://www.runsonwhat.com/reverse/netlify) | Hosting & Cloud | Custom domain, DNS records, Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Gatsby](https://www.runsonwhat.com/reverse/gatsby) | Frontend | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code | | | [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code | | | [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code | | | [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code | | | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | Custom domain | 2019-11 | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records, Website code | | | [Sanity](https://www.runsonwhat.com/reverse/sanity) | Website & CMS | Website code | | | [G2](https://www.runsonwhat.com/reverse/g2) | Marketing | Website code | | | [GitBook](https://www.runsonwhat.com/reverse/gitbook) | Support & Docs | Custom domain | 2020-03 | | [Short.io](https://www.runsonwhat.com/reverse/short-io) | Marketing | Custom domain | 2022-08 | ## 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 | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records | | | [Vanta](https://www.runsonwhat.com/reverse/vanta) | Security & Compliance | Custom domain | 2022-09 | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | Website code | | | [Tailscale](https://www.runsonwhat.com/reverse/tailscale) | Security & Compliance | DNS verification records | | ## FAQ ### What tools does Sleuth use? As of November 2026, runsonwhat has found 27 tools at Sleuth (sleuth.io) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: React and Gatsby. Data & Observability: Google Tag Manager, Sentry and web-vitals. Go-to-market: LinkedIn Insight Tag, Zendesk and Sanity. Company Ops: Microsoft 365, Google Workspace and Mailchimp Transactional. Last checked November 6, 2026. ### What cloud does Sleuth run on? Sleuth uses Amazon Web Services for hosting and cloud infrastructure, alongside Netlify, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on sleuth.io. Amazon Web Services is used by 147,445 companies runsonwhat tracks. ### What email provider does Sleuth use? Sleuth uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 733,996 companies runsonwhat tracks. ### What does Sleuth use for customer support? Sleuth uses Zendesk for customer support and documentation, alongside GitBook, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk and code on sleuth.io. Zendesk is used by 43,645 companies runsonwhat tracks. ### What analytics tools does Sleuth use? Sleuth uses Google Tag Manager for analytics, alongside PostHog and Segment, according to runsonwhat (November 2026). runsonwhat found Google Tag Manager through Google Tag Manager code on sleuth.io. Google Tag Manager is used by 516,017 companies runsonwhat tracks. ### What is Sleuth's website built with? Sleuth uses Sanity for its website, according to runsonwhat (November 2026). runsonwhat found Sanity through Sanity code on sleuth.io. Sanity is used by 5,315 companies runsonwhat tracks. ### How long has Sleuth used Atlassian Statuspage? Sleuth has used Atlassian Statuspage since at least November 2019, going by the first public certificate of the sleuth.io subdomain that points at Atlassian Statuspage. Other long-running tools at Sleuth include Amazon CloudFront (since November 2019), GitBook (since March 2020) and Short.io (since August 2022). ### Does Sleuth use Cloudflare? Yes. runsonwhat found Cloudflare at Sleuth through Cloudflare code on sleuth.io. Cloudflare is a CDN & Edge tool used by 733,057 companies runsonwhat tracks. ### Which companies have a tech stack similar to Sleuth's? The companies with the stacks most like Sleuth's are Kauri One, Easy Agile, Percona and Omio, according to runsonwhat (November 2026). Each shares 7 to 15 tools with Sleuth, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Sleuth uses? runsonwhat reads public records only. Of the 27 tools at Sleuth, 13 were found through code on sleuth.io, 6 through subdomains that point at the vendor, 5 through DNS records and 3 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and sleuth.io about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/sleuth.io (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.