# What does Redfin use? Redfin (redfin.com) shows public evidence of 51 tools, according to runsonwhat (last checked 2026-11-06). - Industry: Real Estate - Size: 1,001–5,000 employees - Based in: Seattle, United States - Founded: 2004 - LinkedIn: https://www.linkedin.com/company/redfin ## 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 | Website code | | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Google Maps](https://www.runsonwhat.com/reverse/google-maps) | Media & UI | Website code | | | [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code | | | [Anthropic](https://www.runsonwhat.com/reverse/anthropic) | AI | DNS verification records | | | [Stripe](https://www.runsonwhat.com/reverse/stripe) | Payments & Billing | DNS verification records, Website code | | | [Twilio](https://www.runsonwhat.com/reverse/twilio) | Backend & Database | DNS verification records | | ## 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 | | | [Datadog](https://www.runsonwhat.com/reverse/datadog) | Monitoring | Website code | | | [comScore](https://www.runsonwhat.com/reverse/comscore) | Analytics | Website code | | | [Dynatrace](https://www.runsonwhat.com/reverse/dynatrace) | Monitoring | DNS verification records | | | [AppsFlyer](https://www.runsonwhat.com/reverse/appsflyer) | 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, Website code | | | [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code | | | [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records | | | [TikTok Pixel](https://www.runsonwhat.com/reverse/tiktok-pixel) | Ads & Pixels | Website code | | | [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website config | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Custom domain, Email records | 2015-02 | | [ChatGPT Ads](https://www.runsonwhat.com/reverse/chatgpt-ads) | Ads & Pixels | Website code | | | [The Trade Desk](https://www.runsonwhat.com/reverse/tradedesk) | Ads & Pixels | Website code | | | [Amazon Publisher Services](https://www.runsonwhat.com/reverse/amazon-publisher-services) | Ads & Pixels | Website config | | | [Amazon Advertising](https://www.runsonwhat.com/reverse/amazon-advertising) | Ads & Pixels | Website code | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Custom domain | | | [Sprout Social](https://www.runsonwhat.com/reverse/sprout) | Marketing | DNS verification 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 | Custom domain, Email records | | | [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records | | | [Atlassian](https://www.runsonwhat.com/reverse/atlassian) | Dev Tools | DNS verification records | | | [Amazon SES](https://www.runsonwhat.com/reverse/ses) | Email Delivery | DNS verification records | | | [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | DNS verification records | | | [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification 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 | | | [Sophos](https://www.runsonwhat.com/reverse/sophos) | Security & Compliance | DNS verification records | | | [Slack](https://www.runsonwhat.com/reverse/slack) | Collaboration | DNS verification records | | | [Canva](https://www.runsonwhat.com/reverse/canva) | Collaboration | DNS verification records | | | [Jamf](https://www.runsonwhat.com/reverse/jamf) | Security & Compliance | DNS verification records | | | [Airtable](https://www.runsonwhat.com/reverse/airtable) | Collaboration | DNS verification records | | | [Docker](https://www.runsonwhat.com/reverse/docker) | Dev Tools | DNS verification records | | | [Zapier](https://www.runsonwhat.com/reverse/zapier) | Dev Tools | DNS verification records | | | [Wiz](https://www.runsonwhat.com/reverse/wiz) | Security & Compliance | DNS verification records | | | [Lucid](https://www.runsonwhat.com/reverse/lucid) | Collaboration | DNS verification records | | | [Spacelift](https://www.runsonwhat.com/reverse/spacelift) | Dev Tools | DNS verification records | | ## Recent changes at Redfin - 2026-11-06: started using [Airtable](https://www.runsonwhat.com/reverse/airtable) - 2026-11-06: started using [ChatGPT Ads](https://www.runsonwhat.com/reverse/chatgpt-ads) - 2026-11-06: started using again [Marketo](https://www.runsonwhat.com/reverse/marketo) - 2026-11-02: stopped using [Marketo](https://www.runsonwhat.com/reverse/marketo) - 2026-11-02: started using [Spacelift](https://www.runsonwhat.com/reverse/spacelift) ## FAQ ### What tools does Redfin use? As of November 2026, runsonwhat has found 51 tools at Redfin (redfin.com) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Amazon Route 53. Application: Google Maps, React and Anthropic. Data & Observability: Google Analytics, Google Tag Manager and Datadog. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked November 6, 2026. ### What cloud does Redfin run on? Redfin uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (November 2026). runsonwhat found Amazon Web Services through Amazon Web Services code on redfin.com. Amazon Web Services is used by 147,518 companies runsonwhat tracks. ### What email provider does Redfin use? Redfin uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 734,288 companies runsonwhat tracks. ### What does Redfin use for customer support? Redfin uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk and email records, and Redfin has used it since at least February 2015. Zendesk is used by 43,661 companies runsonwhat tracks. ### What payment provider does Redfin use? Redfin uses Stripe for payments and billing, according to runsonwhat (November 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on redfin.com. Stripe is used by 31,439 companies runsonwhat tracks. ### What analytics tools does Redfin use? Redfin uses Google Analytics for analytics, alongside Google Tag Manager, comScore and AppsFlyer, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on redfin.com. Google Analytics is used by 903,974 companies runsonwhat tracks. ### How long has Redfin used Zendesk? Redfin has used Zendesk since at least February 2015, going by the first public certificate of the redfin.com subdomain that points at Zendesk. ### Does Redfin use Cloudflare? Yes. runsonwhat found Cloudflare at Redfin through Cloudflare code on redfin.com. Cloudflare is a CDN & Edge tool used by 733,761 companies runsonwhat tracks. ### Does Redfin use AI tools? Yes. runsonwhat has found Anthropic at Redfin; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Redfin may use more AI tools than these. ### Has Redfin changed tools recently? Yes. On runsonwhat's rechecks, Redfin started using Airtable, ChatGPT Ads and Marketo (latest on November 6, 2026) and stopped using Marketo (latest on November 2, 2026). A change counts only between two checks of redfin.com done the same way. ### Which companies have a tech stack similar to Redfin's? The companies with the stacks most like Redfin's are Payroc World Access, Prove Identity, Clearchoice Dental Implant Centers and Protiviti, according to runsonwhat (November 2026). Each shares 17 to 23 tools with Redfin, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Redfin uses? runsonwhat reads public records only. Of the 51 tools at Redfin, 26 were found through DNS records, 17 through code on redfin.com, 3 through email records, 3 through subdomains that point at the vendor and 2 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and redfin.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/redfin.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.