hubspot.com Security Score

FairSRS Score 87/100 · Grade B · last scanned Oct 7, 2026

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FairSRS Score - hubspot.com

87/100
FairSRS Score
B
Grade
Acceptable
Signal Rating
25 positive signals
2 risk signals
112 host(s), 500 subdomain(s)
Scan coverage. This report analyzed hubspot.com plus a random sample of 500 of its 556 discovered subdomains (up to 500 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.

88/100
85/100
82/100
Vulnerability Exposure
95/100
82/100

Security Signals

Risk Signals (2)

CategorySignalPoints
Email SecurityOpen SMTP (Port 25)
SMTP port 25 is open -- potential for email relay abuse
4f2ow4.notifybf1.hubspot.com 108.179.150.22 :25
-8
TLS / CryptographyCertificate Hostname Mismatch
Domain not found in certificate Subject Alternative Names
4f2ow4.notifybf1.hubspot.com 108.179.150.22 :25 + 7 other hosts · 8 of 337 SSL hosts (2%)
0

Positive Signals (25)

CategorySignalPoints
TLS / CryptographyTLS 1.3 Supported
Server supports TLS 1.3
859.sites.hubspot.com 104.17.91.187 :443 + 328 other hosts · 329 of 337 SSL hosts (98%)
+10
TLS / CryptographyStrong Ciphers Only
Only strong cipher suites detected (ECDHE+AES-GCM/ChaCha20)
859.sites.hubspot.com 104.17.91.187 :443
+8
TLS / CryptographyValid Certificate
SSL/TLS certificate is valid and not expired
859.sites.hubspot.com 104.17.91.187 :443 + 336 other hosts · 337 of 337 SSL hosts (100%)
+8
TLS / CryptographyReputable Certificate Authority
Certificate issued by a reputable CA
859.sites.hubspot.com 104.17.91.187 :443 + 328 other hosts · 329 of 337 SSL hosts (98%)
+5
TLS / CryptographyHSTS Enabled
HTTP Strict Transport Security header present
859.sites.hubspot.com 104.17.91.187 :443 + 328 other hosts · 329 of 337 SSL hosts (98%)
+7
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)
859.sites.hubspot.com 104.17.91.187 :443 + 4 other hosts · 5 of 337 SSL hosts (1%)
+0
Network SecurityWAF/CDN Detected
Protected by Cloudflare
859.sites.hubspot.com 104.17.91.187 + 328 other hosts · 329 of 425 HTTP hosts (77%)
+12
Network SecurityEnterprise Cloud Hosting
Hosted on AWS
bd77g7h.notifybf1.hubspot.com 143.244.94.75
+8
Network SecurityMinimal Open Ports
Only 3 port(s) open
859.sites.hubspot.com 104.17.91.187
+5
Network SecurityNo High-Risk Ports Detected
No high-risk service ports (RDP, Telnet, FTP, etc.) are exposed
859.sites.hubspot.com 104.17.91.187
+5
Network SecurityNo Database Ports Exposed
No database ports (MySQL, PostgreSQL, MongoDB, etc.) are exposed
859.sites.hubspot.com 104.17.91.187
+5
Application HardeningNo Server Version Disclosure
Server header does not reveal software version
859.sites.hubspot.com 104.17.91.187 + 424 other hosts · 425 of 425 HTTP hosts (100%)
+10
Application HardeningContent Security Policy
CSP header is present
859.sites.hubspot.com 104.17.91.187 :443 + 267 other hosts · 268 of 425 HTTP hosts (63%)
+5
Application HardeningX-Frame-Options
Clickjacking protection header present
blog.hubspot.com 172.64.154.108 :80 + 5 other hosts · 6 of 425 HTTP hosts (1%)
+0
Application HardeningX-Content-Type-Options
MIME type sniffing protection present
859.sites.hubspot.com 104.17.91.187 :443 + 375 other hosts · 376 of 425 HTTP hosts (88%)
+4
Application HardeningReferrer-Policy
Referrer policy header present
blog.hubspot.com 172.64.154.108 :80 + 4 other hosts · 5 of 425 HTTP hosts (1%)
+0
Application HardeningPermissions-Policy
Permissions policy header present
community.hubspot.com 104.17.91.187 :443 · 1 of 425 HTTP hosts (0%)
+0
Application HardeningNo Default Pages
No default/welcome pages detected
859.sites.hubspot.com 104.17.91.187 + 424 other hosts · 425 of 425 HTTP hosts (100%)
+5
Application HardeningNo Admin Interfaces Exposed
No exposed admin panels detected
859.sites.hubspot.com 104.17.91.187
+8
Vulnerability ExposureNo CVEs Detected
No known vulnerabilities detected across all hosts
859.sites.hubspot.com 104.17.91.187
+30
Vulnerability ExposureNo Outdated Software Detected
All detected software versions are within acceptable ranges
859.sites.hubspot.com 104.17.91.187
+15
Email SecurityDMARC Reject Policy
DMARC policy set to reject unauthenticated email
859.sites.hubspot.com 104.17.91.187
+15
Email SecurityDKIM Record Found
DKIM record found (selector: google)
859.sites.hubspot.com 104.17.91.187
+10
Email SecurityEnterprise Email Gateway
Email protected by Google Workspace
859.sites.hubspot.com 104.17.91.187
+10
Email SecurityManaged DNS Provider
Using Cloudflare DNS
859.sites.hubspot.com 104.17.91.187
+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
80http859.sites.hubspot.com 104.17.91.187
443https859.sites.hubspot.com 104.17.91.187
80httpbd77e0r.notifybf1.eu1.hubspot.com 143.244.83.57
80httpapi-pdx02-origin.hubspot.com 104.17.92.187
443httpsapi-pdx02-origin.hubspot.com 104.17.92.187
80httpbd77faf.notifybf1.eu1.hubspot.com 143.244.84.149
80http4f2ow6.notifybf1.hubspot.com 108.179.150.24
80httpbd77g7f.notifybf1.hubspot.com 143.244.94.73
80httpbd77e0l.notifybf1.eu1.hubspot.com 143.244.83.51
80httpapp-eu1.hubspot.com 141.101.90.99
443httpsapp-eu1.hubspot.com 141.101.90.99
80httpbd77eza.notifybf1.eu1.hubspot.com 143.244.83.4
80httpbd77e0n.notifybf1.eu1.hubspot.com 143.244.83.53
80httpbd77f6c.notifybf1.hubspot.com 143.244.89.18
80http4f2owk.notifybf1.hubspot.com 108.179.150.2
80http4f2owq.notifybf1.hubspot.com 108.179.150.8
80httpbd77f7d.notifybf2.hubspot.com 143.244.89.55
80httpbd77e0m.notifybf1.eu1.hubspot.com 143.244.83.52
80http4f2ow9.notifybf1.hubspot.com 108.179.150.27
80httpbydaalu.notifybf1.ap1.hubspot.com 216.139.84.160
80httpbd77f7l.notifybf2.hubspot.com 143.244.89.63
80http4f2owt.notifybf1.hubspot.com 108.179.150.11
80httpbd77gxe.notifybf1.hubspot.com 143.244.92.224
80http4f2ow4.notifybf1.hubspot.com 108.179.150.22
25smtp4f2ow4.notifybf1.hubspot.com 108.179.150.22
80httpbd77e0k.notifybf1.eu1.hubspot.com 143.244.83.50
80httpbc1qr2r.notifybf1.hubspot.com 139.180.17.17
80httpbid47xm.bf1.hubspot.com 158.247.24.216
25smtpbid47xm.bf1.hubspot.com 158.247.24.216
80httpbd77e0s.notifybf1.eu1.hubspot.com 143.244.83.58
80httpbydaamb.notifybf2.ap1.hubspot.com 216.139.84.177
80httpbd77faa.notifybf1.eu1.hubspot.com 143.244.84.144
80httpbd77f6i.notifybf1.hubspot.com 143.244.89.24
80httpbd77g69.notifybf1.hubspot.com 143.244.94.67
80httpbc1qr2t.notifybf1.hubspot.com 139.180.17.19
80httpbd77ekz.notifybf2.eu1.hubspot.com 143.244.81.1
80httpbd77g7c.notifybf1.hubspot.com 143.244.94.70
80httpbd77g7i.notifybf1.hubspot.com 143.244.94.76
80http4f2oww.notifybf1.hubspot.com 108.179.150.14
80httpbd77f6b.notifybf1.hubspot.com 143.244.89.17

Technology Inventory

cloudflareCloudflareHSTSGoogle Trust ServicesHTTP/3Cloudflare Browser InsightsZeroSSL GmbHLet's EncryptAWSGoogle WorkspaceCloudflare DNS

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.