Duo.com Identity Security, MFA & SSO | Duo Security

Protect your workforce with Cisco Duo’s industry leading suite of identity security solutions, Single Sign-On (SSO), and Multi-Factor Authentication (...


Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.14 sec.
Last Checked: 08/15/2025

Duo.com traffic volume is 9,629 unique daily visitors and their 16,369 pageviews. The web value rate of duo.com is 290,569 USD. Each visitor makes around 1.82 page views on average.

By Alexa's traffic estimates duo.com placed at 8,540 position over the world, while the largest amount of its visitors comes from United States, where it takes 13,890 place.

Perfect for duo.com that their data center (provided by company company AMAZON-02 - Amazon.com, Inc., US) is located in United States, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by AMAZON-02 - Amazon.com, Inc., US.

Duo.com registered under .COM top-level domain. Check other websites in .COM zone.

The last verification results, performed on (October 13, 2024) duo.com show that duo.com has a valid and up-to-date SSL certificate issued by Amazon expiring on August 20, 2025. Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Amazon.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust duo.com is pretty a safe domain.

Relying Google MobileFriendly test duo.com is well optimized for mobile and tablet devices, however web page loading speed may be improved.


Global Rank
44,848
Average Load Time
1.57sec
Links In Count
90
Website Value
$271,560

Overview
Last Updated: 08/15/2025
Overall result - duo.com is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton Connect Safe
Last Updated: 03/22/2025
duo.com is safe.
Norton ConnectSafe evaluates duo.com for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 10/18/2016
duo.com is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google Safe Browsing
Last Updated: 01/09/2019
duo.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 02/22/2021
duo.com is safe.
McAfee assesses duo.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze duo.com for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 01/09/2019
duo.com child safety is very good.
The WOT calculates reputation of the duo.com. This reputation system receives ratings from users and information from third-party sources, assesses the duo.com for safety features and confirms, whether duo.com is suitable for children.

SSL Information
Domainwww.duosecurity.com
Issuer OrganizationAmazon
IssuerAmazon RSA 2048 M02
AlgorithmRSA-SHA256
Valid form07/23/2024
Expiration08/20/2025
SignedCertificate is not self signed
Additional Domains www.duosecurity.com
duosecurity.co.uk
fr.duo.com
www.duosecurity.co.uk
duo.com
de.duo.com
www.duo.com
duosecurity.com
Server Location

ASN Information

ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 12/24/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

WHOIS

Domain Name: DUO.COM
Registry Domain ID: 5585937_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gandi.net
Registrar URL: http://www.gandi.net
Updated Date: 2021-09-08T13:02:26Z
Creation Date: 1998-10-14T04:00:00Z
Registry Expiry Date: 2026-10-13T04:00:00Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS-1365.AWSDNS-42.ORG
Name Server: NS-1733.AWSDNS-24.CO.UK
Name Server: NS-55.AWSDNS-06.COM
Name Server: NS-932.AWSDNS-52.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-05-08T10:12:00Z


DNS Records
HostA RecordTTL
duo.com18.245.143.2960
duo.com18.245.143.7760
duo.com18.245.143.6760
duo.com18.245.143.6660
HostMX RecordPriorityTTL
duo.comaspmx.l.google.com10300
duo.comalt1.aspmx.l.google.com20300
duo.comalt2.aspmx.l.google.com20300
duo.comaspmx2.googlemail.com30300
duo.comaspmx3.googlemail.com30300
duo.comaspmx4.googlemail.com30300
duo.comaspmx5.googlemail.com30300
HostNS RecordTTL
duo.comns-1365.awsdns-42.org172800
duo.comns-1733.awsdns-24.co.uk172800
duo.comns-55.awsdns-06.com172800
duo.comns-932.awsdns-52.net172800
HostTXT RecordTTL
duo.comapple-domain-verification=0NFHW4xLPA7qMAUl300
duo.comgoogle-site-verification=88KLpNEv0nOJ-yRHH3mp3TIvrG4rhNTP3DbODLQeIYg300
duo.comgoogle-site-verification=F16Zf7RnF8CVcYnsbn6C308KFSeldSRrLiJK1cCgoBQ300
duo.comgoogle-site-verification=FyHTkA00weOnJqC50U6D_1Etz0FeTAV36UzX-mR0t7Y300
duo.comgoogle-site-verification=QSlNcf5REPqDzZZtYQdQ02iTtFdCkF4iGzRgOHWeAfk300
duo.comgoogle-site-verification=UxTqzaF64RMmCuE_cfz67aerfbJyPW7jSWJaDRf8U4Q300
duo.comgoogle-site-verification=WvGzO9Z62GF-06EZawhrguz4lX-3soAJz8l5Zdd0kpc300
duo.comgoogle-site-verification=_6xJQkVWQvhjZ8WH17r2qEjOu0CYifwUq5DqV-aUPIE300
duo.comgoogle-site-verification=gY1gXbTT44Hc2xjnx-TmKdBLXKzpthxWKGhlqJL0EDw300
duo.comgoogle-site-verification=uo-yyMBObeQzZDH55aAFLRLyf0IiN20p0GJ0H6N2jQQ300
duo.comgoogle-site-verification=zagew00MIXPj4NT7NSuvolRYA9BWUFvOvUU9On5SkLs300
duo.comidentrust_validate=VOOjXXB2PpF7kC14MiiEHi40phwnkIP1dhJ1AbyZxWKP300
duo.comv=spf1 ip4:72.35.40.113/28 ip4:66.51.154.240/29 include:_spf.google.com include:_spf.salesforce.com include:mktomail.com include:stspg-customer.com include:_spf.intacct.com include:servers.mcsv.net ~all300
duo.comworkplace-domain-verification=M0nohbh4MpXazNtpfeLQrdlEAbaeQ3300

ns-55.awsdns-06.com
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400


Errors
Warnings

Last tested: 05/19/2017

Desktop
Desktop Speed
72%

Desktop Resource Breakdown
Total Resources66
Number of Hosts30
Static Resources40
JavaScript Resources24
CSS Resources6

Last tested: 05/19/2017

Mobile
Mobile Usability
92%
Mobile Speed
58%

Mobile Resource Breakdown
Total Resources62
Number of Hosts30
Static Resources38
JavaScript Resources24
CSS Resources6
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