# What does Cisco Duo use? Cisco Duo (duosecurity.com) shows public evidence of 26 tools, according to runsonwhat (last checked 2026-11-09). - Founded: 2010 - LinkedIn: https://www.linkedin.com/company/duosec ## Edge & Hosting | Tool | Category | Evidence | Since | |---|---|---|---| | [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records | | | [Amazon CloudFront](https://www.runsonwhat.com/reverse/cloudfront) | CDN & Edge | Website code | 2020-02 | ## Application | Tool | Category | Evidence | Since | |---|---|---|---| | [Wistia](https://www.runsonwhat.com/reverse/wistia) | Media & UI | Website code | | ## Data & Observability | Tool | Category | Evidence | Since | |---|---|---|---| | [Atlassian Statuspage](https://www.runsonwhat.com/reverse/statuspage) | Monitoring | DNS verification records | | ## Go-to-market | Tool | Category | Evidence | Since | |---|---|---|---| | [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code | | | [Zendesk](https://www.runsonwhat.com/reverse/zendesk) | Support & Docs | Email records | | | [Salesforce](https://www.runsonwhat.com/reverse/salesforce) | Sales & CRM | Email records | | | [Marketo](https://www.runsonwhat.com/reverse/marketo) | Marketing | Email 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 | | | [SendGrid](https://www.runsonwhat.com/reverse/sendgrid) | Email Delivery | 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 | | | [GlobalSign](https://www.runsonwhat.com/reverse/globalsign) | Security & Compliance | DNS records | | | [Mailgun](https://www.runsonwhat.com/reverse/mailgun) | Email Delivery | Email records | | | [DigiCert](https://www.runsonwhat.com/reverse/digicert) | Security & Compliance | DNS records | | | [Google Trust Services](https://www.runsonwhat.com/reverse/google-trust) | Security & Compliance | DNS records | | | [OneTrust](https://www.runsonwhat.com/reverse/onetrust) | Security & Compliance | Website code | | | [Webex](https://www.runsonwhat.com/reverse/webex) | Collaboration | DNS verification records | | | [dmarcian](https://www.runsonwhat.com/reverse/dmarcian) | Security & Compliance | Email records | | | [Amazon Trust Services](https://www.runsonwhat.com/reverse/amazon-trust) | Security & Compliance | DNS records | | | [Duo](https://www.runsonwhat.com/reverse/duo) | Security & Compliance | DNS verification records | | | [HashiCorp Cloud](https://www.runsonwhat.com/reverse/hashicorp) | Dev Tools | DNS verification records | | ## FAQ ### What tools does Cisco Duo use? As of November 2026, runsonwhat has found 26 tools at Cisco Duo (duosecurity.com) in public records. Edge & Hosting: Amazon Route 53 and Amazon CloudFront. Application: Wistia. Data & Observability: Atlassian Statuspage. Go-to-market: Meta Pixel, Zendesk and Salesforce. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked November 9, 2026. ### What CRM does Cisco Duo use? Cisco Duo uses Salesforce for its CRM, according to runsonwhat (November 2026). runsonwhat found Salesforce through email records that authorize Salesforce. Salesforce is used by 35,539 companies runsonwhat tracks. ### What email provider does Cisco Duo use? Cisco Duo 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 736,659 companies runsonwhat tracks. ### What does Cisco Duo use for customer support? Cisco Duo uses Zendesk for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Zendesk through email records that authorize Zendesk. Zendesk is used by 43,775 companies runsonwhat tracks. ### What marketing software does Cisco Duo use? Cisco Duo uses Marketo for marketing, according to runsonwhat (November 2026). runsonwhat found Marketo through email records that authorize Marketo. Marketo is used by 9,192 companies runsonwhat tracks. ### What monitoring tools does Cisco Duo use? Cisco Duo uses Atlassian Statuspage for monitoring, according to runsonwhat (November 2026). runsonwhat found Atlassian Statuspage through a DNS verification record for Atlassian Statuspage. Atlassian Statuspage is used by 6,944 companies runsonwhat tracks. ### How long has Cisco Duo used Amazon CloudFront? Cisco Duo has used Amazon CloudFront since at least February 2020, going by the first public certificate of the duosecurity.com subdomain that points at Amazon CloudFront. ### Does Cisco Duo use Meta Pixel? Yes. runsonwhat found Meta Pixel at Cisco Duo through Meta Pixel code on duosecurity.com. Meta Pixel is a Ads & Pixels tool used by 422,980 companies runsonwhat tracks. ### Which companies have a tech stack similar to Cisco Duo's? The companies with the stacks most like Cisco Duo's are Velera, Carnival Cruise Deals, Workday and International Flavors & Fragrances, according to runsonwhat (November 2026). Each shares 5 to 12 tools with Cisco Duo, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices. ### How does runsonwhat know what Cisco Duo uses? runsonwhat reads public records only. Of the 26 tools at Cisco Duo, 13 were found through DNS records, 7 through email records, 5 through code on duosecurity.com and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and duosecurity.com about monthly. --- Source: runsonwhat, https://www.runsonwhat.com/company/duosecurity.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.