# Duo Security

> Cisco Duo: multi-factor authentication and single sign-on.

2,546 domains currently detected using Duo Security.

## Domains

| Domain | Since |
| --- | --- |
| shell.com | 2026-11-08 |
| manfredschafer.ch | 2026-11-08 |
| brownconnery.com | 2026-11-08 |
| five9lab.com | 2026-11-08 |
| adventhealth.com | 2026-11-08 |
| jll.com | 2026-11-08 |
| bri-mor.com | 2026-11-08 |
| sierraolympia.com | 2026-11-08 |
| palisadecompliance.com | 2026-11-08 |
| jisortho.com | 2026-11-08 |

Showing the first 10 of 2,546 domains. Paid plans list and export them all, on the web and through the API.

See [all technologies](https://digstory.io/technologies.md).