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Security report for getsentry.com

Functional Software, Inc dba Sentry · Technology · United States

Low risk. 4 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

78/100

Risk levelLow

0–100, higher is better. How it is calculated

Sentry is a well-established technology company founded in 2012, specializing in application performance monitoring and error tracking software targeted at developers and software teams. The company positions itself as a leading SaaS provider with over 100,000 teams using its platform, offering a comprehensive suite of monitoring tools including error monitoring, logs, session replay, tracing, and uptime monitoring. The website reflects a mature business with professional branding, clear navigation, and a strong market presence supported by major customer logos and extensive product offerings. Technically, the site is built on modern frameworks such as React and Gatsby, hosted on Google Cloud infrastructure, and employs analytics tools like Google Tag Manager and Plausible Analytics. Performance and mobile optimization are excellent, with good SEO and accessibility practices in place. Security-wise, the site enforces HTTPS, uses security headers, and maintains a clientTransferProhibited domain status, although DNSSEC is not enabled and no explicit security policy or vulnerability disclosure page was found. Overall, the website is trustworthy, secure, and compliant with privacy regulations, although publishing additional security documentation and enabling DNSSEC would enhance its security posture further.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

  4. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching getsentry.com

This scan found 18 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
77
Security headers
45
Email security
75
DNS health
85
Network security
100
GDPR outside view
85
Average
78

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Sentry operates in the technology sector, providing essential developer tools for application monitoring and error tracking. Its SaaS business model targets software development teams and enterprises, emphasizing rapid issue detection and resolution. The company leverages integrations with popular platforms like GitHub and Slack, enhancing its ecosystem and user engagement. The presence of a sandbox environment and extensive SDK support across multiple programming languages indicates a strong developer focus and commitment to usability. The company’s market position is strong, supported by a large user base and partnerships with notable technology firms. Growth indicators include new product launches such as 'Seer' and continuous updates reflected in changelogs and blogs. The company maintains a professional online presence with comprehensive resources, support channels, and community engagement through events and podcasts.

Security posture

Sentry demonstrates a solid security posture with HTTPS enforced site-wide, appropriate security headers, and domain transfer protections. The absence of DNSSEC is a minor gap that could be addressed to improve DNS security. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of a dedicated security policy, incident response information, or vulnerability disclosure mechanism limits transparency for security researchers and customers. No data protection officer contact or explicit GDPR compliance statements beyond the privacy policy were found. The site uses reputable analytics and tracking tools with privacy considerations. Overall, the security maturity is good but could benefit from enhanced documentation and DNS security improvements.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response page to improve transparency and trust.
  3. Implement and publicize a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  4. Consider appointing and publishing Data Protection Officer contact details to enhance GDPR compliance visibility.
  5. Regularly review and update third-party libraries and dependencies to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Functional Software, Inc dba Sentry
Description
Application performance monitoring for developers & software teams to see errors clearer, solve issues faster & continue learning continuously.
Key services
Error Monitoring, Logs, Session Replay, Tracing, Seer, Uptime Monitoring, Profiling, Cron Monitoring
Content quality
excellent
Branding
consistent

Technology

Stack
React, Gatsby, Google Tag Manager, Plausible Analytics, JavaScript
Frameworks
React, Gatsby
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • No DNSSEC (not enabled)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager, Plausible Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Plausible Analytics
Marketing tools
Plausible Analytics
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and targeted at developers and software teams.
  3. Strong brand presence with major customer logos displayed.
  4. No signs of malicious or suspicious activity.
  5. Good use of modern web technologies and analytics.
  6. Security posture is strong but could improve DNSSEC and publish security policies.
  7. Contact information is available but no explicit security contact or DPO found.
Technical notes

Notes

The website is built using modern web technologies including React and Gatsby, ensuring fast performance and good SEO. Hosting is managed via Google Cloud DNS with Google Tag Manager and Plausible Analytics for tracking and marketing insights. The site is mobile-optimized with responsive design and accessibility features. The use of preloaded fonts and optimized images contributes to fast load times. No CMS was detected, indicating a custom-built solution tailored for performance and flexibility. The technical infrastructure supports a high-quality user experience with minimal technical debt visible. Opportunities exist to enhance DNS security and expand security documentation to align with best practices.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 76/100 +1Low28 findingsView report
  2. 75/100Medium23 findingsView report
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