Sites like Duo

01 · Entity

About Duo

Duo duosecurity.com

IAM & MFA Identity Security for Business, Humans, AI | Cisco Duo

Cisco Duo secures workforce access and defends against advanced identity threats with IAM, phishing-resistant MFA, SSO, passwordless, and device trust.

Top 10K · #2,759 English 11 technologies Crawled Nov 6, 2026

Visit Duo

Summary by Claude

Cisco Duo provides identity and access management for organizations, including multi-factor authentication, single sign-on, passwordless login, device trust checks, a user directory and identity threat analytics.

Who it’s for

IT and security teams at businesses and government

Business model

Subscriptions

• identity and access management
• multi-factor authentication
• phishing-resistant MFA
• single sign-on
• passwordless authentication
• device trust
• zero trust access
• identity threat detection
• AI agent identity security

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Duo’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   Okta okta.com Top 1K English

   Secure Identity for Employees, Customers, and AI | Okta

   The Okta and Auth0 Platforms enable secure access, authentication, and automation — putting identity at the heart of business security and growth.

   • Apple Business
   • Atlassian
   • Google Search Console
   • Marketo
   • Amazon Route 53
   • Adobe

   0 say Okta is a good alternative to Duo 0 say Okta isn’t a real alternative to Duo

   Comment
   Very close cos 0.896
2. 02
   JumpCloud jumpcloud.com Top 10K English

   JumpCloud: Unified Platform for Identity, Access, & Devices

   JumpCloud makes it simple to manage Windows, Apple, Linux, and Android devices and to deliver secure access with SSO, MFA, Zero Trust, RADIUS, and more.

   • Apple Business
   • Atlassian
   • Amazon CloudFront
   • Google Search Console
   • Google Workspace
   • Marketo

   0 say JumpCloud is a good alternative to Duo 0 say JumpCloud isn’t a real alternative to Duo

   Comment
   Close cos 0.890
3. 03
   Cisco cisco.com Top 1K English

   AI Infrastructure, Secure Networking, and Software Solutions - Cisco

   Cisco is a worldwide technology leader powering an inclusive future for all. Learn more about our products, services, solutions, and innovations.

   • Apple Business
   • Atlassian
   • Bing Webmaster Tools
   • Google Search Console
   • Microsoft 365
   • Adobe

   0 say Cisco is a good alternative to Duo 0 say Cisco isn’t a real alternative to Duo

   Comment
   Close cos 0.879
4. 04
   Auth0 auth0.com Top 1K English

   Secure Authentication & Ship Faster | Auth0

   Secure users, AI agents, and more with Auth0, a production-ready authentication and authorization platform built to help you ship faster and drive sign-ups.

   • Apple Business
   • Atlassian
   • Google Search Console
   • Marketo
   • Microsoft 365
   • Amazon Route 53

   0 say Auth0 is a good alternative to Duo 0 say Auth0 isn’t a real alternative to Duo

   Comment
   Close cos 0.875
5. 05
   Cisco Meraki meraki.com Top 1K

   Provider of Networking Equipment for Large-scale Projects Developed by Cisco Systems

   • Google Search Console
   • Google Workspace
   • Marketo
   • Microsoft 365
   • Amazon Route 53
   • Zendesk

   0 say Cisco Meraki is a good alternative to Duo 0 say Cisco Meraki isn’t a real alternative to Duo

   Comment
   Close cos 0.871
6. 06
   Dashlane dashlane.com Top 10K English

   Dashlane: Password management & credential security platform

   Top-rated password manager and credential protection solution for enterprises, businesses, and individuals.

   • Atlassian
   • Google Search Console
   • Google Workspace
   • Marketo
   • Microsoft 365
   • Amazon Route 53

   0 say Dashlane is a good alternative to Duo 0 say Dashlane isn’t a real alternative to Duo

   Comment
   Close cos 0.868
7. 07
   ClassLink classlink.com Top 1K English

   ClassLink | Identity & Access Management for Education

   ClassLink is a provider of identity and access management products offering instant access to apps and files with SSO, class rostering, account provisioning, and analytics.

   • Apple Business
   • Atlassian
   • Google Search Console
   • Microsoft 365
   • Amazon Route 53
   • Adobe Fonts

   0 say ClassLink is a good alternative to Duo 0 say ClassLink isn’t a real alternative to Duo

   Comment
   Close cos 0.865
8. 08
   1Password 1password.com Top 10K English

   Password Manager, Secrets, and Access Management | 1Password

   Protect passwords and secrets, manage app access, and secure AI tools with 1Password. Easy to adopt from growing teams to enterprise.

   • Atlassian
   • Google Search Console
   • Google Workspace
   • Amazon Route 53
   • Zendesk
   • Amazon SES

   0 say 1Password is a good alternative to Duo 0 say 1Password isn’t a real alternative to Duo

   Comment
   Close cos 0.863
9. 09
   Tenable® tenable.com Top 10K English

   Vulnerability and exposure management | Cloud and AI security | Tenable®

   The leader in exposure management and AI security, Tenable cybersecurity solutions reduce cyber risk across IT, OT, cloud, identity & hybrid attack surfaces.

   • Apple Business
   • Atlassian
   • Google Search Console
   • Marketo
   • Microsoft 365
   • Adobe

   0 say Tenable® is a good alternative to Duo 0 say Tenable® isn’t a real alternative to Duo

   Comment
   Close cos 0.862
10. 10
    Menlo Security menlosecurity.com Top 10K English

    Browser Security for Humans and Agents | Menlo Security

    Secure your agentic enterprise with the Menlo Browser Security Platform. Get zero-day threat prevention, secure access, and data security in one unified platform.

    • Apple Business
    • Atlassian
    • Google Search Console
    • Google Workspace
    • Amazon Route 53
    • Zendesk

    0 say Menlo Security is a good alternative to Duo 0 say Menlo Security isn’t a real alternative to Duo

    Comment
    Close cos 0.862
11. 11
    Norton norton.com Top 10K

    software brand

    • Google Search Console
    • Microsoft 365
    • Akamai
    • UltraDNS

    0 say Norton is a good alternative to Duo 0 say Norton isn’t a real alternative to Duo

    Comment
    Close cos 0.863
12. 12
    DataDome datadome.co Top 10K English

    datadome.co

    cybersecurity company

    • Apple Business
    • Atlassian
    • Amazon CloudFront
    • Google Search Console
    • Google Workspace
    • Microsoft 365

    0 say DataDome is a good alternative to Duo 0 say DataDome isn’t a real alternative to Duo

    Comment
    Close cos 0.862
13. 13
    Bitwarden bitwarden.com Top 10K English

    Best Password Manager for Business, Enterprise & Personal | Bitwarden | Bitwarden

    Bitwarden is the trusted, open source password manager for individuals, teams, and enterprises. Securely store, share, and manage passwords, passkeys, and secrets. Free to start.

    • Atlassian
    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • Amazon SES
    • Cloudflare DNS

    0 say Bitwarden is a good alternative to Duo 0 say Bitwarden isn’t a real alternative to Duo

    Comment
    Close cos 0.862
14. 14
    Clerk clerk.com Top 10K English

    Clerk | Authentication and User Management

    The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, Remix, and “The Modern Web”.

    • Google Search Console
    • Google Workspace
    • Clerk
    • Meta Business Suite
    • Next.js
    • React

    0 say Clerk is a good alternative to Duo 0 say Clerk isn’t a real alternative to Duo

    Comment
    Close cos 0.859
15. 15
    bsgslb.com Top 10K Chinese

    零信任_安全办公平台_远程安全访问_SASE方案_终端安全-白山云

    基于零信任理念和白山云全球边缘网络，「网络+安全+服务+情报」一体化建设，更安全、更快速、更经济地保障企业全球化高效办公，确保分布在全球各地的用户都能随时随地、快速安全地访问企业本地和云上资源。

    • Bootstrap
    • GSAP
    • jQuery
    • nginx

    0 say bsgslb.com is a good alternative to Duo 0 say bsgslb.com isn’t a real alternative to Duo

    Comment
    Close cos 0.862
16. 16
    bsclink.cn Top 10K Chinese

    零信任_安全办公平台_远程安全访问_SASE方案_终端安全-白山云

    基于零信任理念和白山云全球边缘网络，「网络+安全+服务+情报」一体化建设，更安全、更快速、更经济地保障企业全球化高效办公，确保分布在全球各地的用户都能随时随地、快速安全地访问企业本地和云上资源。

    • Bootstrap
    • GSAP
    • jQuery
    • nginx

    0 say bsclink.cn is a good alternative to Duo 0 say bsclink.cn isn’t a real alternative to Duo

    Comment
    Close cos 0.862
17. 17
    iubenda iubenda.com Top 10K English

    Compliance Solutions for Websites, Apps and Organizations | iubenda

    iubenda is your 360° compliance solution for global data privacy laws. Privacy policy generator, cookie consent management, ROPA, Terms and more.

    • Apple Business
    • Google Search Console
    • Microsoft 365
    • Amazon Route 53
    • Amplitude
    • Bootstrap

    0 say iubenda is a good alternative to Duo 0 say iubenda isn’t a real alternative to Duo

    Comment
    Close cos 0.861
18. 18
    ThousandEyes thousandeyes.com Top 10K

    network monitoring company

    • Apple Business
    • Atlassian
    • Google Search Console
    • Google Workspace
    • Marketo
    • Amazon Route 53

    0 say ThousandEyes is a good alternative to Duo 0 say ThousandEyes isn’t a real alternative to Duo

    Comment
    Close cos 0.857
19. 19
    Zscaler zscaler.com Top 10K English

    Leading Cloud Enterprise Security Provider for Zero Trust

    Zscaler is a leading cloud enterprise security provider helping global businesses adopt zero trust for secure digital transformation.

    • Apple Business
    • Atlassian
    • Bing Webmaster Tools
    • Google Search Console
    • Google Workspace
    • Marketo

    0 say Zscaler is a good alternative to Duo 0 say Zscaler isn’t a real alternative to Duo

    Comment
    Close cos 0.858
20. 20
    Docusign docusign.com Top 10K English

    Docusign | #1 in Electronic Signature and Intelligent Agreement Management

    Create, commit to, and manage your agreements all in one platform with Docusign IAM. Electronically sign for free.

    • Apple Business
    • Atlassian
    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • Adobe

    0 say Docusign is a good alternative to Duo 0 say Docusign isn’t a real alternative to Duo

    Comment
    Close cos 0.857

Ranked by score: the cosine similarity of each site’s vector to duosecurity.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Duo uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Duo is built with, and what its closest competitors use, from its homepage’s code and its DNS records.