
Mozilla Observatory
Hardenize
Qualys SSL Server Test
MxToolBox
HTTP Observatory
UptimeRobot
Sucuri
Quickly and easily assess the security of your HTTP response headers.

Google Authenticator
Authy
Lastpass
Azure Multi-Factor Authentication
OneLogin
Okta
Ping Identity
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.

Which is more popular?
Based on our record, Security Headers should be more popular than Duo Security. It has been mentioned 69 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | securityheaders.com | duo.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Security Headers and Duo Security. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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...
Recommendations tracked on public social media and blogs since March 2021.


Check: Go to securityheaders.com and enter your URL. A grade below B means you're missing important ones. - Source: dev.to / 3 months ago
The curl above is the fastest check; all four lines should come back. In a browser, DevTools, Network tab, click the document request, read Response Headers. For a letter grade, securityheaders.com scores you against a known rubric. One... - Source: dev.to / 3 months ago
Remediation: Configure your web server to suppress or mask the Server header. Add security headers like Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-Content-Type-Options. You can use tools like... - Source: dev.to / 4 months ago
Take for example a university. Many of them seem to use Duo[1], which is not something you can replace with Google Authenticator or other TOTP app. They require it for students as well as faculty and staff. Is it reasonable for them to... - Source: Hacker News / 2 months ago
The Solution: There are not only one solution to achieve the goal, but this time we choose Cisco Duo as the MFA infrastructure. - Source: dev.to / 8 months ago
Duo.com — Two-factor authentication (2FA) for website or app. Free for ten users, all authentication methods, unlimited, integrations, hardware tokens. - Source: dev.to / over 2 years ago
When comparing Security Headers and Duo Security, you can also consider the following products.

The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
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Google Authenticator is a multifactor app for mobile devices.
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Hardenize provides a comprehensive and free assessment of web site network and security configuration.
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Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
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This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
Compare Qualys SSL Server Test to Security Headers or Duo Security:

LastPass is an online password manager and form filler that makes web browsing easier and more secure.
Compare Lastpass to Security Headers or Duo Security: