redhat.com Security Score

FairSRS Score 84/100 · Grade B · last scanned Jul 10, 2026

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FairSRS Score - redhat.com

84/100
FairSRS Score
B
Grade
Acceptable
Signal Rating
24 positive signals
3 risk signals
30 host(s), 50 subdomain(s)
Scan coverage. This report analyzed redhat.com plus a random sample of 50 of its 452 discovered subdomains (up to 50 subdomains are checked per scan). The score reflects this sampled portion of the external attack surface, so re-scanning may surface additional hosts.

Category Breakdown

Categories with items of opportunity are clickable - open one to see the action items that would raise its score.

87/100
83/100
76/100
Vulnerability Exposure
95/100
77/100

Security Signals

Risk Signals (3)

CategorySignalPoints
Email SecurityOpen SMTP (Port 25)
SMTP port 25 is open -- potential for email relay abuse
communitylinkup.redhat.com 136.243.165.110 :25
-8
TLS / CryptographyCertificate Hostname Mismatch
Domain not found in certificate Subject Alternative Names
communitylinkup.redhat.com 136.243.165.110 :25 + 4 other hosts · 5 of 36 SSL hosts (14%)
0
Application HardeningServer Version Disclosed
Server header reveals software version information
rhui3.us-east-1.aws.ce.redhat.com 44.197.135.178 :443 · 1 of 36 HTTP hosts (3%)
0

Positive Signals (24)

CategorySignalPoints
TLS / CryptographyTLS 1.3 Supported
Server supports TLS 1.3
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 :443 + 32 other hosts · 33 of 36 SSL hosts (92%)
+9
TLS / CryptographyStrong Ciphers Only
Only strong cipher suites detected (ECDHE+AES-GCM/ChaCha20)
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 :443
+8
TLS / CryptographyValid Certificate
SSL/TLS certificate is valid and not expired
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 :443 + 35 other hosts · 36 of 36 SSL hosts (100%)
+8
TLS / CryptographyReputable Certificate Authority
Certificate issued by a reputable CA
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 :443 + 33 other hosts · 34 of 36 SSL hosts (94%)
+5
TLS / CryptographyHSTS Enabled
HTTP Strict Transport Security header present
saml.redhat.com 98.83.184.133 :443 + 25 other hosts · 26 of 36 SSL hosts (72%)
+5
TLS / CryptographyPQC-Ready Infrastructure
Server supports TLS 1.3 with TLS_AES_256_GCM_SHA384 cipher suite, indicating readiness for post-quantum hybrid key exchange (X25519 + ML-KEM-768)
communitylinkup.redhat.com 136.243.165.110 :25 + 6 other hosts · 7 of 36 SSL hosts (19%)
+2
Network SecurityWAF/CDN Detected
Protected by Fastly
origin-sysadmin.dev.redhat.com 23.185.0.4 · 0 of 36 HTTP hosts (0%)
+15
Network SecurityEnterprise Cloud Hosting
Hosted on Azure
appgw.aapzbdlwqowdgmgi.ansiblecloud.redhat.com 172.166.190.185
+8
Network SecurityNo High-Risk Ports Detected
No high-risk service ports (RDP, Telnet, FTP, etc.) are exposed
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+5
Network SecurityNo Database Ports Exposed
No database ports (MySQL, PostgreSQL, MongoDB, etc.) are exposed
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+5
Application HardeningNo Server Version Disclosure
Server header does not reveal software version
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 + 34 other hosts · 35 of 36 HTTP hosts (97%)
+10
Application HardeningContent Security Policy
CSP header is present
communitylinkup.redhat.com 136.243.165.110 :443 + 2 other hosts · 3 of 36 HTTP hosts (8%)
+1
Application HardeningX-Frame-Options
Clickjacking protection header present
communitylinkup.redhat.com 136.243.165.110 :443 + 6 other hosts · 7 of 36 HTTP hosts (19%)
+1
Application HardeningX-Content-Type-Options
MIME type sniffing protection present
communitylinkup.redhat.com 136.243.165.110 :443 + 9 other hosts · 10 of 36 HTTP hosts (28%)
+1
Application HardeningReferrer-Policy
Referrer policy header present
communitylinkup.redhat.com 136.243.165.110 :443 + 2 other hosts · 3 of 36 HTTP hosts (8%)
+0
Application HardeningPermissions-Policy
Permissions policy header present
communitylinkup.redhat.com 136.243.165.110 :443 · 1 of 36 HTTP hosts (3%)
+0
Application HardeningNo Default Pages
No default/welcome pages detected
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27 + 35 other hosts · 36 of 36 HTTP hosts (100%)
+5
Application HardeningNo Admin Interfaces Exposed
No exposed admin panels detected
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+8
Vulnerability ExposureNo Validated CVEs
No validated vulnerabilities detected. 14 version-inferred CVEs observed but not validated, so excluded from the score.
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+30
Vulnerability ExposureNo Outdated Software Detected
All detected software versions are within acceptable ranges
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+15
Email SecurityDMARC Quarantine Policy
DMARC policy set to quarantine unauthenticated email
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+10
Email SecurityDKIM Record Found
DKIM record found (selector: google)
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+10
Email SecurityEnterprise Email Gateway
Email protected by Mimecast
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+10
Email SecurityManaged DNS Provider
Using NS1
app.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
+5

Vulnerability Exposure

0 Critical 0 High 0 Medium 0 Low

No high-severity (CVSS ≥ 7.0) CVEs identified in external data.

Open Ports & Services

PortServiceHostFlag
443httpsapp.apps.kiwi.ocp.ole.redhat.com 34.200.72.27
80httpsaml.redhat.com 98.83.184.133
443httpssaml.redhat.com 98.83.184.133
80httppartner.redhat.com 54.157.108.158
443httpspartner.redhat.com 54.157.108.158
80httpddns01.infra.demo.redhat.com 3.134.126.161
443httpsddns01.infra.demo.redhat.com 3.134.126.161
80httppress.redhat.com 100.28.104.175
443httpspress.redhat.com 100.28.104.175
993imap-sslcommunitylinkup.redhat.com 136.243.165.110
995pop3-sslcommunitylinkup.redhat.com 136.243.165.110
587smtpcommunitylinkup.redhat.com 136.243.165.110
110pop3communitylinkup.redhat.com 136.243.165.110
143imapcommunitylinkup.redhat.com 136.243.165.110
80Apache httpdcommunitylinkup.redhat.com 136.243.165.110
465smtpscommunitylinkup.redhat.com 136.243.165.110
22sshcommunitylinkup.redhat.com 136.243.165.110
25smtpcommunitylinkup.redhat.com 136.243.165.110
443Apache httpdcommunitylinkup.redhat.com 136.243.165.110
443httpslab-proxy.na150.labs.ole.redhat.com 148.62.92.9
443nginx 1.26.3rhui3.us-east-1.aws.ce.redhat.com 44.197.135.178
80httphello.ebc.redhat.com 34.232.57.179
443httpshello.ebc.redhat.com 34.232.57.179
80httpaap2-prod-us-east-2-02.aap.infra.demo.redhat.com 18.118.58.216
443nginxaap2-prod-us-east-2-02.aap.infra.demo.redhat.com 18.118.58.216
443httpsiad2-relay.preprod.wgvpn.redhat.com 209.132.178.62
53dns-udpns2.redhat.com 198.51.45.1
6443Kubernetes 1.23.17+16bcd69api.tools-apac152.prod.ole.redhat.com 103.61.188.34
80httporigin-sysadmin.dev.redhat.com 23.185.0.4
443httpsorigin-sysadmin.dev.redhat.com 23.185.0.4
80Apache httpdredhat.com 52.200.142.250
443Apache httpdredhat.com 52.200.142.250
80httpapi.demo-experience.stage.demo.redhat.com 23.20.63.26
443httpsapi.demo-experience.stage.demo.redhat.com 23.20.63.26
443nginxaap2-prod-us-east-2.aap.infra.demo.redhat.com 3.150.64.75
80Microsoft Azure Application Gateway v2appgw.aapzbdlwqowdgmgi.ansiblecloud.redhat.com 172.166.190.185
443Microsoft Azure Application Gateway v2appgw.aapzbdlwqowdgmgi.ansiblecloud.redhat.com 172.166.190.185
443nginxrewardzone.redhat.com 70.33.230.93
1022OpenSSH 8.2p1 Ubuntu 4ubuntu0.13rewardzone.redhat.com 70.33.230.93
443Apache httpddle-idm-26.dle.ole.redhat.com 72.32.49.113

Technology Inventory

Let's Encryptredirectv2CaddyGouvicornDigiCert IncApache httpdApacheGlobalSign nv-sajQuery 3.6.0jQuery UI 1.13.1jQuery CDN3.6.01.13.1nginx 1.26.3HSTSRed Hat, Inc.1.26.3nginxKubernetes 1.23.17+16bcd69kube-apiserver-service-network-signerPantheonApache HTTP ServerAmazonMicrosoft Azure Application Gateway v2Microsoft-Azure-Application-Gateway v2PayPalBootstrapMergeKlarna CheckoutOpenSSH 8.2p1 Ubuntu 4ubuntu0.138.2p1AWSHetznerAzureMimecastNS1

Important - how to read this rating. Security Rating Services (SRS) like FairSRS provide signals to help identify potential third-party risk from externally observable data. They should not be relied upon as the sole measure of an organization’s security posture. External signals are incomplete by nature. In particular, some organizations deliberately run deception technology (honeypots and decoy services) that is designed to appear vulnerable to lure and study attackers - such systems may surface here as risk signals but can actually reflect a mature, positive security program. Always corroborate these signals with direct assessment and evidence before drawing conclusions.

What is the FairSRS Score?

The FairSRS Score is a free security rating from 0 to 100 that measures a company’s externally observable security posture - the same outside-in signals a security team (or an attacker) can see without any access to the target’s internal systems. Enter any company domain above and FairSRS scans publicly available data to grade its third-party and vendor security risk in seconds, then generates a shareable report you can download as a PDF.

It’s powered by the free, open-source Fair TPRM platform and the same continuous security monitoring engine used inside our vendor risk management workflows - so the rating you see here is the same one security teams rely on to monitor their vendors.

What the score measures

Your FairSRS Score is a weighted blend of five externally observable security categories:

  • TLS / Cryptography - TLS protocol versions, certificate validity, HSTS, cipher strength, and post-quantum readiness.
  • Network Security - open ports, exposed services, WAF/CDN protection, and hosting posture.
  • Application Hardening - security headers, software version disclosure, exposed admin panels, and directory listings.
  • Vulnerability Exposure - known CVEs on internet-facing services, weighted by severity.
  • Email Security - SPF, DKIM, DMARC, and MTA-STS configuration that protects against spoofing.

Each finding is a signal that adds or subtracts points, producing a 0-100 score and an A-F grade. To turn these signals into quantified financial risk, pair them with FAIR risk analysis and a full GRC compliance program.

Recently scored vendors

Every domain below has a saved FairSRS Score you can open directly - no scan, no waiting, ranked highest score to lowest. Scores reflect the most recent scan and are re-checked when someone re-scans the domain.

Frequently asked questions

Is the FairSRS vendor security score really free?

Yes. FairSRS is completely free with no login, account, or credit card required. It is powered by the free, open-source Fair TPRM platform.

What does the FairSRS Score measure?

It measures a company’s externally observable security posture across five categories - TLS/cryptography, network security, application hardening, vulnerability (CVE) exposure, and email security - and combines them into a 0-100 score with an A-F grade.

How is the score calculated?

FairSRS analyzes publicly observable data about a domain - open services, TLS and certificate configuration, security headers, known CVEs, and DNS-based email protections such as SPF, DKIM and DMARC - and weights each signal to produce the score. No login or access to the target is required.

Is my data private?

Yes. No account is needed, and if you choose to have the report emailed, your address is used only to send that one report, encrypted in transit, then permanently deleted. We never store it, never sell or share it, and no one from Fair TPRM will contact you.

Can I scan any company or vendor?

Yes. Enter any public company domain to check its external security posture. It is designed to help you assess third-party vendors and suppliers.

How accurate is an external security rating?

A security rating provides signals to help identify risk, but it is not a complete picture and should not be the sole basis for judging a company’s security. Some organizations run deception technology that can appear vulnerable but reflects a mature program. Always corroborate with direct assessment.