duo.com
Link authority for duo.com (registrable domain: duo.com) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.
Web-graph authority (0-100)
Domain scores measure duo.com as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname duo.com. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.
Homepage
What duo.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://duo.com.
| Title | Complete Identity Security & MFA Solutions | Cisco Duo |
|---|---|
| Description | Duo Security offers solutions to protect organizations from identity threats. Explore Duo identity security, phishing-resistant MFA, and other solutions. |
| OG Title | Complete Identity Security & MFA Solutions | Cisco Duo |
| OG Description | Duo Security offers solutions to protect organizations from identity threats. Explore Duo identity security, phishing-resistant MFA, and other solutions. |
| OG Site Name | Cisco Duo |
| Twitter Title | Complete Identity Security & MFA Solutions | Cisco Duo |
| Twitter Card | summary_large_image |
Social accounts and contact points
Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.
| Googleplay | com.duosecurity.duomobile |
|---|---|
| duosec | |
| X | duosec |
| Youtube | DuoSecurity |
| duosec | |
| duosec (business) |
| Contact pages | https://duo.com/about/contact |
|---|---|
| Blog | https://duo.com/blog |
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: Organization, WebSite, SoftwareApplication, WebPage, Review.
JSON-LD block (10,846 bytes)
{
"@context": "https://schema.org/",
"@graph": [
{
"@type": "Organization",
"@id": "https://duo.com/#organization",
"name": "Cisco Duo",
"alternateName": [
"Duo Security",
"Duo"
],
"url": "https://duo.com/",
"logo": {
"@type": "ImageObject",
"url": "https://duo.com/images/duo-logo.png",
"width": 300,
"height": 145
},
"image": {
"@type": "ImageObject",
"url": "https://duo.com/images/duo-logo.png",
"width": 300,
"height": 145
},
"description": "Cisco Duo provides cloud-delivered identity security, including phishing-resistant multi-factor authentication (MFA), single sign-on (SSO), device trust, and identity threat detection capabilities.",
"foundingDate": "2010",
"parentOrganization": {
"@type": "Organization",
"@id": "https://www.cisco.com/#organization",
"name": "Cisco Systems",
"url": "https://www.cisco.com/",
"sameAs": [
"https://en.wikipedia.org/wiki/Cisco",
"https://www.wikidata.org/wiki/Q173395"
]
},
"contactPoint": [
{
"@type": "ContactPoint",
"contactType": "sales",
"url": "https://duo.com/about/contact",
"areaServed": "Global",
"availableLanguage": [
"English",
"Australian",
"French - Canada",
"German",
"Japanese - Japan",
"Spanish",
"Italian",
"Arabic"
]
},
{
"@type": "ContactPoint",
"telephone": "+1-866-760-4247",
"contactType": "Customer support",
"areaServed": "US",
"availableLanguage": [
"English"
]
}
],
"sameAs": [
"https://www.facebook.com/duosec/",
"https://x.com/duosec/",
"https://www.linkedin.com/company/duosec/",
"https://www.youtube.com/@DuoSecurity",
"https://www.instagram.com/duosec/"
],
"knowsAbout": [
{
"@type": "Thing",
"name": "Multi-factor authentication",
"alternateName": "MFA",
"sameAs": "https://en.wikipedia.org/wiki/Multi-factor_authentication",
"url": "https://duo.com/product/multi-factor-authentication-mfa"
},
{
"@type": "Thing",
"name": "Single Sign-On",
"alternateName": "SSO",
"sameAs": "https://en.wikipedia.org/wiki/Single_sign-on",
"url": "https://duo.com/product/single-sign-on-sso"
},
{
"@type": "Thing",
"name": "Zero Trust Network Access",
"alternateName": [
"ZTNA",
"Zero Trust Security"
],
"sameAs": "https://en.wikipedia.org/wiki/Zero_trust_architecture",
"url": "https://duo.com/solutions/zero-trust-security"
},
{
"@type": "Thing",
"name": "Identity and Access Management",
"alternateName": "IAM",
"sameAs": "https://en.wikipedia.org/wiki/Identity_management",
"url": "https://duo.com/solutions/security-first-iam"
},
{
"@type": "Thing",
"name": "Identity Provider",
"alternateName": "IdP",
"sameAs": "https://en.wikipedia.org/wiki/Identity_provider",
"url": "https://duo.com/product/single-sign-on-sso"
},
{
"@type": "Thing",
"name": "Phishing-resistant MFA",
"url": "https://duo.com/solutions/phishing-prevention"
},
{
"@type": "Thing",
"name": "Passwordless Authentication",
"sameAs": "https://en.wikipedia.org/wiki/Passwordless_authentication",
"url": "https://duo.com/product/passwordless"
},
{
"@type": "Thing",
"name": "Device Trust",
"url": "https://duo.com/product/device-trust"
},
{
"@type": "Thing",
"name": "Identity Threat Detection and Response",
"alternateName": "ITDR",
"url": "https://duo.com/product/identity-threat-detection-and-response-itdr"
},
{
"@type": "Thing",
"name": "Identity Security Posture Management",
"alternateName": "ISPM",
"url": "https://duo.com/product/identity-security-posture-management-ispm"
},
{
"@type": "Thing",
"name": "Remote Access",
"alternateName": "Remote Workforce Security",
"url": "https://duo.com/product/remote-access"
},
{
"@type": "Thing",
"name": "Cisco Identity Intelligence",
"alternateName": "Identity Intelligence",
"url": "https://duo.com/product/cisco-identity-intelligence",
"sameAs": "https://www.cisco.com/site/us/en/solutions/security/identity-intelligence/index.html"
},
{
"@type": "Thing",
"name": "Privileged Access Management",
"alternateName": "PAM",
"url": "https://duo.com/learn/privileged-access-management-best-practices"
},
{
"@type": "Thing",
"name": "Adaptive Authentication",
"alternateName": "Risk-Based Authentication",
"url": "https://duo.com/product/adaptive-access-policies"
},
{
"@type": "Thing",
"name": "Cisco ISE Integration",
"url": "https://duo.com/docs/ciscoise-api"
},
{
"@type": "Thing",
"name": "Security Compliance",
"alternateName": [
"HIPAA Compliance",
"PCI-DSS Compliance",
"SOC 2 Compliance",
"NIST Compliance",
"DEA EPCS Compliance",
"GDPR Compliance",
"FFIEC Compliance",
"PIPEDA Compliance"
],
"url": "https://duo.com/solutions/compliance"
},
{
"@type": "Thing",
"name": "Cyber Insurance Requirements",
"url": "https://resources.duo.com/explore/assets/cyber-liability-insurance"
}
]
},
{
"@type": "WebSite",
"@id": "https://duo.com/#website",
"url": "https://duo.com/",
"name": "Cisco Duo - Identity Security Platform",
"description": "Secure your organization with Cisco Duo's IAM (Identity and Access Management) platform featuring phishing-resistant MFA, SSO, device trust, and threat detection for modern workforces.",
"publisher": {
"@id": "https://duo.com/#organization"
},
"inLanguage": "en-US"
},
{
"@type": "SoftwareApplication",
"@id": "https://duo.com/#product",
"name": "Cisco Duo Security Platform",
"alternateName": "Duo",
"applicationCategory": "SecurityApplication",
"applicationSubCategory": "Multi-Factor Authentication, Single Sign-On, Device Trust, Identity Management",
"operatingSystem": "Windows, macOS, iOS, Android, Linux, Cloud-based",
"description": "Duo verifies user identity and secures access to applications and data with capabilities that include Phishing-resistant MFA, SSO, and Device Trust.",
"publisher": {
"@id": "https://duo.com/#organization"
},
"offers": {
"@type": "Offer",
"@id": "https://duo.com/#free-trial-offer",
"url": "https://signup.duo.com/",
"price": "0",
"priceCurrency": "USD",
"description": "30-day free trial",
"availability": "https://schema.org/InStock",
"category": "FreeTrial"
},
"subjectOf": [
{
"@type": "WebPage",
"name": "Cisco Duo reviews on TrustRadius",
"url": "https://www.trustradius.com/products/cisco-duo/reviews"
}
]
}
]
}
JSON-LD block (515 bytes)
{
"@context": "https://schema.org/",
"@type": "WebPage",
"name": "Complete Identity Security & MFA Solutions",
"description": "Duo Security offers solutions to protect organizations from identity threats. Explore Duo identity security, phishing-resistant MFA, and other solutions.",
"url": "https://duo.com",
"image": "https://duo.com/assets/img/seo-images/socialshare-home.jpg",
"publisher": {
"@id": "https://duo.com/#organization"
},
"lastReviewed": "2026-06-05"
}
JSON-LD block (2,224 bytes)
{
"@context": "https://schema.org/",
"@type": "Review",
"itemReviewed": {
"@type": "Product",
"name": "Cisco Duo",
"description": "Multi-factor authentication (MFA) and secure access solutions.",
"image": "https://duo.com/images/duo-logo.png",
"brand": {
"@type": "Brand",
"name": "Cisco"
},
"offers": [
{
"@type": "Offer",
"name": "Start Free 30-Day Trial",
"price": "0",
"priceCurrency": "USD",
"url": "https://signup.duo.com/",
"availability": "https://schema.org/InStock",
"description": "Full feature access for 30 days."
}
]
},
"reviewBody": "Our rollout was surprisingly quick. All the training and onboarding material was right there. We just downloaded it, added our banner, and sent it to our users. We had roughly 1,000 employees onboarded, registered, and using the product in less than 30 days. It was one of our fastest rollouts.",
"author": {
"@type": "Person",
"name": "Mark Rodrigue",
"jobTitle": "Senior Network Engineer",
"worksFor": {
"@type": "Organization",
"name": "Room & Board"
}
},
"image": {
"@type": "ImageObject",
"url": "https://duo.com/assets/img/customerimage_roomandboard.webp",
"caption": "A well-lit furniture showroom displays various modern living room furniture arrangements."
}
}
JSON-LD block (2,048 bytes)
{
"@context": "https://schema.org/",
"@type": "Review",
"itemReviewed": {
"@type": "Product",
"name": "Cisco Duo",
"description": "Multi-factor authentication (MFA) and secure access solutions.",
"image": "https://duo.com/images/duo-logo.png",
"brand": {
"@type": "Brand",
"name": "Cisco"
},
"offers": [
{
"@type": "Offer",
"name": "Start Free 30-Day Trial",
"price": "0",
"priceCurrency": "USD",
"url": "https://signup.duo.com/",
"availability": "https://schema.org/InStock",
"description": "Full feature access for 30 days."
}
]
},
"reviewBody": "Duo has proven to be one of those rare solutions that both improves the security of our company while simultaneously being easier for our employees to use.",
"author": {
"@type": "Person",
"name": "Mike Johnson",
"jobTitle": "Former CISO",
"worksFor": {
"@type": "Organization",
"name": "Lyft"
}
},
"image": {
"@type": "ImageObject",
"url": "https://duo.com/assets/img/customerimage_lyft.webp",
"caption": "Two people are smiling inside a car with a Lyft logo device visible on the dashboard."
}
}
JSON-LD block (2,082 bytes)
{
"@context": "https://schema.org/",
"@type": "Review",
"itemReviewed": {
"@type": "Product",
"name": "Cisco Duo",
"description": "Multi-factor authentication (MFA) and secure access solutions.",
"image": "https://duo.com/images/duo-logo.png",
"brand": {
"@type": "Brand",
"name": "Cisco"
},
"offers": [
{
"@type": "Offer",
"name": "Start Free 30-Day Trial",
"price": "0",
"priceCurrency": "USD",
"url": "https://signup.duo.com/",
"availability": "https://schema.org/InStock",
"description": "Full feature access for 30 days."
}
]
},
"reviewBody": "When we roll a technology out to users, we want to enable as much self-service as possible—not generate more help desk calls. Users shouldn’t have to wait for IT.",
"author": {
"@type": "Person",
"name": "Christopher Martin",
"jobTitle": "Manager of Identity and Access Security",
"worksFor": {
"@type": "Organization",
"name": "AmeriGas"
}
},
"image": {
"@type": "ImageObject",
"url": "https://duo.com/assets/img/customerimage_amerigas1.webp",
"caption": "An Amerigas propane delivery truck is parked in front of a house."
}
}
Authority over time
Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.
A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.
Backlink counts
Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for duo.com and domain-level for duo.com with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.
Top backlinks in the domain graph
Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to duo.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 1,000; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
Top backlinks in the host graph
The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to duo.com specifically, ranked by the linker's PageRank. The table shows the top 1,000; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.