# What does SiFive use? SiFive (sifive.com) shows public evidence of 32 tools, according to runsonwhat (last checked 2026-10-21). - LinkedIn: https://www.linkedin.com/company/sifive ## 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 | | | [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | Custom domain | | | [Heroku](https://www.runsonwhat.com/reverse/heroku) | Hosting & Cloud | Custom domain, 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 | | | [Adobe Fonts](https://www.runsonwhat.com/reverse/adobe-fonts) | Media & UI | Website code | | | [Next.js](https://www.runsonwhat.com/reverse/nextjs) | Frontend | Website code | | | [Auth0](https://www.runsonwhat.com/reverse/auth0) | Auth & Identity | Custom domain, Website config | 2026-04 | ## 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 | | | [web-vitals](https://www.runsonwhat.com/reverse/web-vitals) | Monitoring | Website code | | | [PostHog](https://www.runsonwhat.com/reverse/posthog) | Analytics | Website code | | | [Segment](https://www.runsonwhat.com/reverse/segment) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [HubSpot](https://www.runsonwhat.com/reverse/hubspot) | Sales & CRM | Email records, Website code | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Email records, Website code | | | [Apollo.io](https://www.runsonwhat.com/reverse/apollo) | Sales & CRM | Website code | | | [Prismic](https://www.runsonwhat.com/reverse/prismic) | Website & CMS | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | Email records, 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, Website code | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | DNS verification records | | | [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | Email records | | | [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code | | | [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records | | | [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records | | | [Smartsheet](https://www.runsonwhat.com/reverse/smartsheet) | Collaboration | DNS verification records | | ## FAQ ### What tools does SiFive use? As of October 2026, runsonwhat has found 32 tools at SiFive (sifive.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Fonts, React and Adobe Fonts. Data & Observability: Google Analytics, Google Tag Manager and web-vitals. Go-to-market: Google Ads, HubSpot and Salesforce. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 21, 2026. ### What cloud does SiFive run on? SiFive uses Amazon Web Services for hosting and cloud infrastructure, alongside Google Cloud and Heroku, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on sifive.com. Amazon Web Services is used by 145,823 companies runsonwhat tracks. ### What CRM does SiFive use? SiFive uses HubSpot for its CRM, alongside Salesforce and Apollo.io, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on sifive.com. HubSpot is used by 94,353 companies runsonwhat tracks. ### What email provider does SiFive use? SiFive uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 712,580 companies runsonwhat tracks. ### What analytics tools does SiFive use? SiFive uses Google Analytics for analytics, alongside Google Tag Manager, PostHog and Segment, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on sifive.com. Google Analytics is used by 885,096 companies runsonwhat tracks. ### What is SiFive's website built with? SiFive uses Prismic for its website, according to runsonwhat (October 2026). runsonwhat found Prismic through Prismic code on sifive.com. Prismic is used by 1,543 companies runsonwhat tracks. ### How long has SiFive used Auth0? SiFive has used Auth0 since at least April 2026, going by the first public certificate of the sifive.com subdomain that points at Auth0. ### Does SiFive use Google Fonts? Yes. runsonwhat found Google Fonts at SiFive through Google Fonts code on sifive.com. Google Fonts is a Media & UI tool used by 812,844 companies runsonwhat tracks. ### Which companies have a tech stack similar to SiFive's? The companies with the stacks most like SiFive's are Potash Corporation of Saskatchewan, cellcentric GmbH & Co. KG, Deliveroo and Deskeo, according to runsonwhat (October 2026). Each shares 7 to 17 tools with SiFive, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what SiFive uses? runsonwhat reads public records only. Of the 32 tools at SiFive, 14 were found through code on sifive.com, 8 through DNS records, 7 through email records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and sifive.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/sifive.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.