# What does Stack Overflow use? Stack Overflow (stackoverflow.co) shows public evidence of 19 tools, according to runsonwhat (last checked 2026-10-20). - Based in: New York, United States - Founded: 2008 - LinkedIn: https://www.linkedin.com/company/stack-overflow ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [NS1](https://www.runsonwhat.com/reverse/ns1) | DNS | DNS records | | | [Netlify](https://www.runsonwhat.com/reverse/netlify) | Hosting & Cloud | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Vue.js](https://www.runsonwhat.com/reverse/vue) | Frontend | Website code | | | [Nuxt](https://www.runsonwhat.com/reverse/nuxt) | Frontend | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code | | | [Crazy Egg](https://www.runsonwhat.com/reverse/crazyegg) | Analytics | Website code | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code | | | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | DNS verification records | | | [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Custom domain | | | [Sanity](https://www.runsonwhat.com/reverse/sanity) | Website & CMS | Website code | | | [Common Room](https://www.runsonwhat.com/reverse/commonroom) | Sales & CRM | Website code | | ## Company Ops | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records, Website code | | | [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records | | | [Sectigo](https://www.runsonwhat.com/reverse/sectigo) | Security & Compliance | DNS records | | | [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification records | | ## FAQ ### What tools does Stack Overflow use? As of October 2026, runsonwhat has found 19 tools at Stack Overflow (stackoverflow.co) in public records. Edge & Hosting: NS1 and Netlify. Application: Vue.js and Nuxt. Data & Observability: Google Analytics and Crazy Egg. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Google Workspace, Let's Encrypt and Sectigo. Last checked October 20, 2026. ### What cloud does Stack Overflow run on? Stack Overflow uses Netlify for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Netlify through Netlify code on stackoverflow.co. Netlify is used by 11,691 companies runsonwhat tracks. ### What sales tools does Stack Overflow use? The sales tools runsonwhat has found at Stack Overflow are Common Room (October 2026); no CRM shows up in Stack Overflow's public records. runsonwhat found Common Room through Common Room code on stackoverflow.co. Common Room is used by 417 companies runsonwhat tracks. ### What email provider does Stack Overflow use? Stack Overflow uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on stackoverflow.co. Google Workspace is used by 406,548 companies runsonwhat tracks. ### What analytics tools does Stack Overflow use? Stack Overflow uses Google Analytics for analytics, alongside Crazy Egg, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on stackoverflow.co. Google Analytics is used by 894,444 companies runsonwhat tracks. ### What is Stack Overflow's website built with? Stack Overflow uses Sanity for its website, according to runsonwhat (October 2026). runsonwhat found Sanity through Sanity code on stackoverflow.co. Sanity is used by 5,094 companies runsonwhat tracks. ### Does Stack Overflow use Google Ads? Yes. runsonwhat found Google Ads at Stack Overflow through Google Ads code on stackoverflow.co. Google Ads is a Ads & Pixels tool used by 526,812 companies runsonwhat tracks. ### Which companies have a tech stack similar to Stack Overflow's? The companies with the stacks most like Stack Overflow's are Magis Real Estate, Nue.io, SchoolAI and FieldRoutes, according to runsonwhat (October 2026). Each shares 4 to 8 tools with Stack Overflow, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Stack Overflow uses? runsonwhat reads public records only. Of the 19 tools at Stack Overflow, 10 were found through code on stackoverflow.co, 7 through DNS records, 1 through email records 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 stackoverflow.co about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/stackoverflow.co (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.