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go.duosecurity.com

Cisco · tier critical (marketing / brand) · 0.3% of the company's traffic weight · scan of 2026-10-17

AWS Route 53DNS (zone duosecurity.com)
AWSEdge
AWS (AS16509)108.138.92.0/22

DNS records

Statuslive
CNAME chain—
A108.138.94.32 108.138.94.39 108.138.94.11 108.138.94.74
AAAA—
Zoneduosecurity.com
Zone NSns-1271.awsdns-30.org ns-1600.awsdns-08.co.uk ns-272.awsdns-34.com ns-896.awsdns-48.net
Origin ASNAS16509 AWS (AS16509)
BGP prefix108.138.92.0/22

HTTP

GET / status301
/cdn-cgi/tracenot probed
cf-raya4c0320a3ff2065f-SEA
locationhttps://go.duo.com/
servercloudflare
via1.1 f62c9ca47e35df5c65764381977823a6.cloudfront.net (CloudFront)
x-amz-cf-idDN82OuYogFsCTJh7cLq516dz0_ITH-UK4aPLNPsTQptq_fCPNMJvKg==
x-amz-cf-popSEA73-P2
x-cacheHit from cloudfront

Why we classified it this way

DNS

  • AWS Route 53 AWS Route 53 · NS ns-1271.awsdns-30.org, ns-1600.awsdns-08.co.uk, ns-272.awsdns-34.com, ns-896.awsdns-48.net (confidence 95%)

Edge

  • AWS AWS CloudFront (IP range) · A 108.138.94.32 in published aws_cloudfront ranges; x-amz-cf-* / via CloudFront (confidence 93%)

History

ScanStatusDNSEdgeCNAME / AASN
2026-10-17liveAWS Route 53AWS108.138.94.32 108.138.94.39 108.138.94.11 108.138.94.74AS16509
2026-10-17liveAWS Route 53AWS108.138.94.11 108.138.94.39 108.138.94.74 108.138.94.32AS16509