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Security report for techstars.com

Techstars · Technology · N/a

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

79/100

Risk levelLow

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

Techstars is a globally recognized startup accelerator founded in 2006, focused on helping early-stage founders succeed through mentorship-driven programs, capital investment, and access to a powerful network. The company positions itself as a leader in the technology accelerator space, supporting thousands of mentors and startups worldwide, including several unicorn companies with valuations exceeding $1 billion. The website reflects a mature digital presence with professional design, clear navigation, and rich multimedia content. Technically, the site leverages modern web technologies including Next.js, React, Material-UI, and integrates multiple third-party marketing and analytics tools such as HubSpot, Google Analytics, Facebook Pixel, and Hotjar. The site is mobile-optimized and performs well, with a strong focus on user experience and SEO best practices. Contentful is used as the CMS, indicating a scalable content management approach. From a security perspective, the site enforces HTTPS and uses Google reCAPTCHA Enterprise for form protection. However, explicit security headers and published security policies are not detected, and there is no public vulnerability disclosure or incident response information. The domain WHOIS data is consistent with the business claims, showing a long-established registration aligned with the company’s founding date, supporting legitimacy. Overall, Techstars demonstrates a strong business and technical foundation with good security hygiene but could improve transparency around privacy, security policies, and incident response to enhance trust and compliance posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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

3 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 Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. GDPR outside view

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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  3. 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 techstars.com

This scan found 17 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

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

Email alerts on material changes and an exportable JSON history of every change.

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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
72
Security headers
65
Email security
85
DNS health
85
Network security
100
GDPR outside view
68
Average
79

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

Techstars operates as a leading global startup accelerator, investing in and mentoring early-stage technology companies. Its business model centers on providing a 3-month accelerator program combined with capital investment and access to a vast network of mentors and investors. The company targets founders, startups, investors, and partners, positioning itself as an essential ecosystem player in the startup and venture capital space. The presence of portfolio companies with significant market caps and unicorn status underscores its competitive advantage and market influence. The company leverages partnerships and a broad mentor network to sustain growth and maintain market leadership.

Security posture

The website exhibits a moderate to strong security posture with HTTPS enforced and use of Google reCAPTCHA Enterprise to protect forms. No sensitive data is exposed in the HTML content. However, the absence of visible security headers (such as Content Security Policy, HSTS, X-Frame-Options) and lack of published security or incident response policies represent gaps in transparency and best practices. No vulnerability disclosures or security.txt files are present, limiting external reporting channels. The integration of multiple third-party scripts introduces potential risk vectors that require ongoing monitoring. Overall, the security posture is good but could be enhanced by formalizing policies and improving header configurations.

Recommendations

  1. Implement and verify comprehensive security headers including CSP, HSTS, and X-Frame-Options to mitigate common web vulnerabilities.
  2. Publish clear security and incident response policies on the website to improve transparency and user trust.
  3. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting of security issues.
  4. Enhance privacy compliance by adding explicit privacy and cookie policies with GDPR compliance details.
  5. Regularly audit and update third-party scripts and integrations to minimize security risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Techstars
Description
Techstars helps founders succeed. Through our global accelerators, we invest in early-stage startups led by founders building a better future for everyone.
Key services
Mentorship-driven accelerator programs, Capital investment, Access to global network of mentors and investors
Content quality
excellent
Branding
consistent

Technology

Stack
React (Next.js), HubSpot (forms, analytics, leadflows, banners), Google Tag Manager, Google Analytics, Facebook Pixel, Hotjar, LinkedIn Insight Tag, YouTube iframe API, Slick Carousel
Frameworks
Next.js, Material-UI (MUI)
Platforms
HubSpot
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA Enterprise
  • No exposed sensitive data in HTML
  • Secure iframe embedding with strict referrer policy

Analytics and tracking

Services
Google Analytics, Hotjar, HubSpot Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, Hotjar
Marketing tools
HubSpot
Transparency
good

Site quality

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

Key observations

  1. Website uses modern web technologies and frameworks.
  2. Strong branding and consistent messaging focused on startup acceleration.
  3. Extensive use of third-party marketing and analytics tools.
  4. No explicit privacy or cookie policies found on main page content.
  5. Contact information is limited to an email and embedded forms.
  6. No explicit security or incident response policies published.
  7. No vulnerability disclosure or security.txt detected.
  8. High-quality multimedia content including embedded videos.
  9. No signs of suspicious or malicious content.
Technical notes

Notes

The website is built on a modern technology stack featuring Next.js and React, supported by Material-UI for UI components and Contentful as the CMS. It integrates multiple marketing and analytics tools such as HubSpot, Google Analytics, Facebook Pixel, and Hotjar, indicating a mature digital marketing strategy. The site is well-optimized for performance and mobile responsiveness, with structured data (JSON-LD) implemented for SEO benefits. The use of asynchronous script loading and CDN-hosted assets contributes to fast page loads. Technical risks include reliance on multiple third-party scripts which require vigilant security management.
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

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