duosecurity.com favicon

duosecurity.com

Category: Information Technology

Scanned: Jun 22, 2026, 04:04 AM UTC · First seen: Jun 22, 2026 · Threat Engines: 0 / 91 · Times Scanned: 1
93 / 100 Trust Score Based on scan findings at the time of analysis
No Threats Found
0 - High Risk50 - Moderate100 - No Threats
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Screenshot of duosecurity.com Captured Jun 22, 2026
https://duosecurity.com
Screenshot of duosecurity.com
15 years
Very Popular - #3,168 Tranco rank (>10M monthly visitors)
Not listed (91 checked)
✓ Valid (TLS)
AWS CloudFront (GLOBAL)
Paris, France
Duo/1.0
Unknown
13.227.231.28
Domain & WHOIS Information
Registrar Markmonitor Inc.
Registered September 27, 2010
Expires September 27, 2026
Name Servers ns-1271.awsdns-30.org
DNSSEC Unsigned
Hosting AWS CloudFront (GLOBAL)
Reputation & Threat Check 91 security engines checked
File Scan Summary Powered by Quttera Engine
102 files scanned
No threats
101
Low Risk
0
Medium Risk
1
High Risk
0
No threats Low Risk Medium Risk High Risk
/index Flagged: medium risk
duo.com.http-redirect 78 B No threats
duo.com/docs 363.5 KB No threats
duo.com/blog 144.0 KB No threats
duo.com/phishing-season-is-over 112.3 KB No threats
duo.com/events 82.8 KB No threats
duo.com/ciso 102.4 KB No threats
duo.com/demos 119.9 KB No threats
duo.com/search 64.6 KB No threats
duo.com/learn 159.1 KB No threats
duo.com/# 255.0 KB No threats
Show 91 more...
Quttera flagged medium risk files - is this your website?
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External Links & Domains
1738
External Links
All Clean
0
Iframes
Clean
52
Referenced Domains
All Clean
0
Flagged Resources
None Detected
http://duosecurity.com/${t}Not flagged
http://duosecurity.com/aboutNot flagged
http://duosecurity.com/about/contactNot flagged
http://duosecurity.com/about/contact-chat-not-availableNot flagged
http://duosecurity.com/about/duo-security-explainerNot flagged
http://duosecurity.com/assets/img/2025-trends-report-cover-mockup.webpNot flagged
http://duosecurity.com/assets/img/2fa-50-50-2-desktop.webpNot flagged
http://duosecurity.com/assets/img/2fa-50-50-3-desktop.webpNot flagged
http://duosecurity.com/assets/img/2fa-50-50-4-desktop.webpNot flagged
http://duosecurity.com/assets/img/2fa-50-50-5-desktop.webpNot flagged
http://duosecurity.com/assets/img/2fa-50-50-desktop.webpNot flagged
http://duosecurity.com/assets/img/access-management-solutions-hero.webpNot flagged
http://duosecurity.com/assets/img/access-management-solutions.webpNot flagged
http://duosecurity.com/assets/img/access-management-tools-duo-free-trial.webpNot flagged
http://duosecurity.com/assets/img/access-management-tools-free-duo.webpNot flagged
Show 485 more...
Showing first 500 of 1738 entries.
admin.duosecurity.comNot flagged
api.cludo.comNot flagged
apps.apple.comNot flagged
blog.talosintelligence.comNot flagged
blogs.cisco.comNot flagged
brandfolder.comNot flagged
careers.cisco.comNot flagged
cloudsecurity.cisco.comNot flagged
content.naic.orgNot flagged
customer.cludo.comNot flagged
docs.oort.ioNot flagged
duo.comNot flagged
duosecurity.comNot flagged
ecosystem.duo.comNot flagged
eloqua-scripts.security.umbrella.comNot flagged
Show 37 more...
duosecurity.com Overview

Description of duosecurity.com

duosecurity.com appears to be the official website for Duo Security, a technology company focused on identity security, multi-factor authentication (MFA), access management, and related enterprise security services. The page title and visible branding indicate it is presented as Cisco Duo, which aligns with Duo's role as part of Cisco's security portfolio. The site content appears aimed at organizations seeking protection against identity-based threats and unauthorized access.

Based on the domain name, metadata, and classification data, this website serves as a product and marketing portal for enterprise cybersecurity solutions rather than a consumer-focused content site. It includes product navigation, documentation/resources, pricing, support, and administrative login access, which is consistent with a legitimate software-as-a-service security platform operated within the broader Cisco ecosystem.

Safety Assessment for duosecurity.com

This domain shows strong trust indicators based on available scan data. It was not flagged by any of 91 security engines at the time of this scan, and the checked blacklist and threat-database sources also reported no listings associated with malware, phishing, or other web threats. Multiple web-classification providers categorized the site as information technology or technology, which is consistent with the visible content and branding.

One automated malware scan marked the homepage path as "suspicious," but no specific malware family or confirmed malicious payload was identified, and no external links, referenced domains, or iframes were flagged in that same scan. Given the domain's long registration history, strong traffic rank, established corporate branding, and the absence of corroborating detections from other security engines, this isolated heuristic result appears to be a low-confidence signal rather than clear evidence of harmful activity.

Based on available data, no threats were detected at the time of this scan.

Technical Description

The site is served over HTTPS with a valid SSL/TLS certificate issued through Amazon infrastructure, and the certificate was valid through 2026-12-07 at the time of this scan. Hosting appears to be delivered via AWS CloudFront, with the observed server IP resolving to Amazon-owned infrastructure and the web server identifying itself as Duo/1.0. The domain is well established, registered through MarkMonitor, and uses AWS nameservers.

DNSSEC appears to be unsigned, which is not uncommon but means DNS responses do not benefit from DNSSEC validation. No major technical security concerns were evident from the provided scan data beyond that minor observation and the single low-confidence heuristic homepage flag.

HTTP Redirect Chain
301 https://duosecurity.com/
200 https://duo.com/
Website Insights
#3,168
Tranco Rank
Very Popular
Visitors >10M/mo
Category: Information Technology
Rank History (30 days)
May 11 Jun 21
54 cookies detected
Essential48
Analytics4
Advertising2
Social0
0 1st party cookies
54 3rd party (trackers)
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This report was generated automatically and is provided for informational purposes only. Results are based on a point-in-time scan and may contain false positives or incomplete data. This does not constitute a security audit or certification. No vendor in the market can guarantee a 100% detection rate. If you believe this report is inaccurate, please submit a dispute.

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