Software Alternatives, Accelerators & Startups

ZeroSSL VS Duo Security

Compare ZeroSSL VS Duo Security and see what are their differences

ZeroSSL logo ZeroSSL

FREE SSL certificates issued instantly online with Free SSL Certificate Wizard.

Duo Security logo Duo Security

Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.
  • ZeroSSL Landing page
    Landing page //
    2023-07-18
  • Duo Security Landing page
    Landing page //
    2023-09-26

ZeroSSL videos

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Duo Security videos

What is DUO Security 2FA and How it Works With Windows Remote Desktop

More videos:

  • Review - Powerful New Features from Duo Security
  • Review - An Introduction to Duo Security

Category Popularity

0-100% (relative to ZeroSSL and Duo Security)
Domain Name Registrar
100 100%
0% 0
Identity And Access Management
SSL Certificates
100 100%
0% 0
Two Factor Authentication

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ZeroSSL and Duo Security

ZeroSSL Reviews

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Duo Security Reviews

20 Identity Management Solutions You Should Know
Used by WhatsApp and Etsy, Duo Security was designed with modern companies in mind. That means it prioritizes speed. The DuoMobile app, for instance, simplifies multi-factor authentication. Users can merely tap on a push notification instead of typing in an SMS code to complete their login. Duo also allows for a modern, mobile-friendly work culture by letting organizations...
Source: builtin.com

Social recommendations and mentions

Based on our record, Duo Security should be more popular than ZeroSSL. It has been mentiond 31 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ZeroSSL mentions (17)

  • Apple already shipped attestation on the web, and we barely noticed
    Https://zerossl.com/ is a popular alternative. https://www.buypass.com/ is another one I haven't personally tried. - Source: Hacker News / 11 months ago
  • Choosing a SSL certificate for a website
    Get a free cert from https://letsencrypt.org/, https://zerossl.com/, etc. Any modern and reasonable host will have these solutions automated and one click within their panel. Source: over 1 year ago
  • question about v6 and location...
    Letsencrypt and ZeroSSL are two certificate authorities that have an automated system for providing and renewing SSL certificates for free. We're working on some instructions for self-hosting with SSL using Docker. Source: over 1 year ago
  • Could anyone please tell me what breed of chicken this is? She’s quite large and friendly
    " has no SSL certificate, so it is not going to work for a lot the vast majority of users. You can get one for free from https://letsencrypt.org or https://zerossl.com/ or others. Most modern web browsers throw up red "UNSAFE" scare screens when they hit servers without SSL certificates. Source: over 1 year ago
  • Do I need to install SSL certificate (HTTPS) if I only use webservices in Wireguard?
    There are companies providing certs for IP address, e.g, zerossl. So it is rare but exists. Source: over 1 year ago
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Duo Security mentions (31)

  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Duo.com — Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens. - Source: dev.to / 4 months ago
  • Additional computer log-in protection
    You could use Duo - https://duo.com/. It can be set to require MFA when logging in locally or only when logging in via RDP (or both). It's free for up to 10 users. Source: about 1 year ago
  • [Data-Mining] Upcoming tunnels from the May 23 patch
    A quick google tells me that Duo is a 2FA service from Cisco. Maybe that's what Anet is using to manage the 2FA in the launcher behind the scenes? Source: about 1 year ago
  • what do you use for ssh brute force protection: fail2ban or sshguard ? or something else ? for ubuntu and fedora
    I have Duo (https://duo.com) enabled on my internet facing SSH server. It sits behind sslh on port 443 and uses public key authentication only. Source: about 1 year ago
  • Duo MFA with Serverless API Gateway for authentication
    Our organization uses Duo, which is an MFA tool that competes with Okta. I created a serverless application with API Gateway and Lambda that gives users access to Salesforce resources where they can directly update records. This was a workaround for getting around Salesforce community clouds expensive community licenses. Source: about 1 year ago
View more

What are some alternatives?

When comparing ZeroSSL and Duo Security, you can also consider the following products

Let's Encrypt - Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).

Google Authenticator - Google Authenticator is a multifactor app for mobile devices.

Digicert - Encryption & Authentication

Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

COMODO SSL - Buy your Comodo SSL certificates directly from the No.1 Certificate Authority powered by Sectigo (formerly Comodo CA). Fast service with 24/7 support. Over 20 years of SSL Certificate Authority!

Okta - Enterprise-grade identity management for all your apps, users & devices