Security Scan Report: api-a17651a3.duosecurity.com

Redirected to:
https://duo.com/
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Submitted: Jul 8, 2026, 12:19:19 PMCompleted: Jul 8, 2026, 12:20:05 PMpubliccompleted
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Summary

This website contacted 20 IPs in 2 countries across 12 domains to perform 91 HTTP transactions. The main domain is duo.com and was registered NaN years ago.

Submitted URL: https://api-a17651a3.duosecurity.com

Effective URL: https://duo.com/Redirected

The Cisco Umbrella rank of the primary domain is #1,195 of the top 1 million websitesTop 10K Site

AI Security Verdict

Safe Website

Confidence: 92%

1
Risk Score

The site is a legitimate Cisco Duo subdomain with no malicious indicators.

Safety Factors
Established domain with long registration history
Official subdomain of duosecurity.com (brand matches domain)
Positive business legitimacy indicators (about/contact pages)
High Cisco Umbrella ranking (top 10K)
No malicious signals from threat intelligence
Domain age information unavailable

Details

Page Title

Complete Identity Security & MFA Solutions | Cisco Duo

Scan Type

public

Language

🇺🇸

English

(80% confidence)

Category

corporate

(35%)

Domain Information

Domain 'api-a17651a3.duosecurity.com' uses the commercial generic top-level domain (.com) with subdomain 'api-a17651a3'. The core label 'duosecurity' covers 11 characters with five vowels and 6 consonants. Segmentation suggests two words: duo, security. The median word length lands at 5.5 characters. No strong language cues emerged from the frequency lists.

Screenshot

Security scan screenshot of https://api-a17651a3.duosecurity.com

Page Load Overview

3.39s
Total Load Time
91
HTTP Requests
12
Domains
7.3 MB
Total Size

Language Analysis

Primary Language

🇺🇸English
Code: en
Confidence:80%
Script:Latin
Direction:ltr

Detection Details

Language Code:en
Detection Confidence:80%
Script Type:Latin
HTML Lang Attribute:en
Text Length:11,344 chars
Detector Agreement:100%

Website Classification

Primary Category

corporate35% confidence
Type: spa
Method: ml+structural

All Detected Categories

corporate
35%
technology software
25%

Detected Features

Search
OG: website
Schema.org

Domain & IP Information

RequestsIP AddressLocationAS Autonomous System
153.161.82.84Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
4104.18.86.42Cloudflare · WAFUnited States
AS13335Cloudflare, Inc.
4151.101.194.217Fastly · CDNUnited States
AS54113Fastly, Inc.
42.23.244.120Frankfurt am Main, Hesse, Germany
AS16625Akamai Technologies, Inc.
43.161.82.4Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
43.174.46.27Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
418.173.205.94Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
43.161.82.78Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
4104.18.32.137Cloudflare · WAFUnited States
AS13335Cloudflare, Inc.
465.9.175.95Cloudfront · CDNUnited States
AS16509Amazon.com, Inc.
9120--

Content Similarity HashesFor malware variant detection

TLSH (Trend Micro Locality Sensitive Hash)

Security-focused

Specialized for malware detection and similarity analysis

T1CF54705778E1721AE6D38369A6A27A897910980FFD335CDCF24D53784FCDBE24C1260A

ssdeep (Context Triggered Piecewise Hashing)

Context-aware

Detects similar content even with modifications

1536:Z7m/ddv/6FYnpWzic2jLff3Mdbj8HZF+hXz9JAq4tB685Hqsz1GLDPPkhOwtGIxR:Z7r84hJ4tBz9Zz1GLzqhtGIzqBW

sdhash (Similarity Digest Hashing)

High-precision

High-precision similarity detection for forensic analysis

sdhash:3:303484:pskgaAdAEXICc0MhgZcQBjAMAsMUQyGIqNkAgBF4Ji4A4gGoJRQBQhCpCHGryAQCIBNQjBWAwEUQS6hGgCLkBGQEQIAHYQ0g

These hashes enable detection of similar websites and malware variants by comparing content similarity even when exact matches aren't found.

Image Hashes

Perceptual Hashes

Average Hash:ffffffffff818181
Perceptual Hash:b9d26c7bc2392c85
Difference Hash:4915160c0b333333
Wavelet Hash:a4c3c7efef818181
Color Hash:#87a2c5

Other Hashes

Scan History

Scan history not available

Unable to load historical scan data