Security & privacy tools / Duo
Duo
Cisco Duo secures workforce access and defends against advanced identity threats with IAM, phishing-resistant MFA, SSO, passwordless, and device trust.
Where it stands
4.3 / 5
Signals score
Not a hands-on test
Based on 1 of 3 signals
- Website health5 / 5 · weight 50%
Measured from the tool's public website
Built only from what we can measure or quote without using the tool. How ranking works
Rank by signals
We have not run our own hands-on test on Duo yet. Facts checked 2026-11-08. How tests work
Should you use Duo?
A quick read built only from what the tool's own pages state and from our tests, not from opinion. Facts checked 2026-11-08.
A good fit if…
- You want a free option. It states: “Duo offers a free tier for teams of 10 or less. The page says: “Duo Free for teams of 10 or less.””
Check first
- Its pages do not state: pricing, watermark, where your files go. Check on the tool's site before you rely on it.
Measured signals
5 / 5 · measured 2026-11-08Read automatically from Duo's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured
- Reliability5 / 5The page answered and finished downloading in 247 ms.
- Security5 / 54 of 5 protective headers set (strict-transport-security, content-security-policy, x-content-type-options, referrer-policy).
- Privacy5 / 5No third-party tracking services found on the page.
- Transparency5 / 5Links a privacy policy; links a pricing page.
Community feedback
We found no public discussion of this tool to read.
Threads: Duo Outage (2023, 75 comments)
- Free tier
- Duo offers a free tier for teams of 10 or less. The page says: “Duo Free for teams of 10 or less.”
- Paid plan
- Not stated.
- Signup
- A free sign up is available. The page says: “Free sign up.”
- Watermark
- Not stated.
- Where files go
- Not stated.
From the tool's own pages, checked 2026-11-08. Sources: Home. Prices and limits change; check the tool before you rely on them.
Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”
Get an email if Duo changes
We check its official pages every week. If they change, we tell you, so you can see if the price or limits moved. No other email, and one click stops it.
Are you the maker of Duo? Link to this page
Copy this into your site. The link goes to this page, and it does not change any score.
<a href="https://agathox.com/tools/duo">Duo on agathox: compared and tested</a>
Tasks and scores
- Two-factor authenticationNot tested yet
Similar tools
Top signals in Two-factor authentication.
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