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Security report for square.site

Square, Inc. · Finance · United States

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

80/100

Risk levelLow

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

Square, Inc. is a leading fintech company specializing in payment processing, point of sale software, and business management tools for merchants and sellers. The website reflects a mature, enterprise-level digital presence with a focus on usability and brand consistency. The technical infrastructure leverages modern web technologies and AWS hosting, ensuring fast performance and mobile optimization. Security posture is strong with HTTPS enforcement and domain transfer protections, though minor improvements such as enabling DNSSEC and publishing explicit security policies are recommended. Overall, the site is professional and trustworthy, supporting Square's market position as a major player in financial technology services.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

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. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching square.site

This scan found 16 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

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
57
Security headers
65
Email security
85
DNS health
85
Network security
100
GDPR outside view
88
Average
80

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

Square operates in the finance and technology sectors, targeting small to medium businesses with payment and business software solutions. The business model centers on transaction fees and software subscriptions. The company benefits from strong brand recognition and a parent company relationship with Block, Inc. The website's content and design support a high level of professionalism and trust, though explicit contact and policy information was not found in the provided content. The ecosystem includes multiple CDN and font hosting domains, indicating a robust content delivery strategy.

Security posture

The website employs HTTPS and domain status protections to secure its online presence. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of DNSSEC and security.txt files, as well as missing explicit security headers, represent areas for enhancement. Incident response and security policy information are not publicly visible in the provided content, which could be improved to demonstrate transparency and readiness. Tracking scripts like Sentry are used for monitoring, indicating proactive error and performance management.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Publish a comprehensive privacy policy and cookie consent mechanism accessible from the homepage.
  3. Implement and publish a security.txt file and vulnerability disclosure policy to facilitate responsible reporting.
  4. Add standard security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options.
  5. Provide clear contact information for security incidents and data protection officer details to improve compliance and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Square, Inc.
Description
Square provides payment processing solutions, point of sale software, and business tools for merchants and sellers.
Key services
Credit card processing, Point of sale software, Business management tools, Online payments
Content quality
excellent
Branding
consistent

Technology

Stack
AWS DNS, JavaScript tracking scripts, Custom font hosting, Blob API usage, Beacon API
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Client and server transfer prohibitions on domain
  • No exposed sensitive data in HTML
  • Use of secure tracking mechanisms

Analytics and tracking

Services
Sentry
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Sentry
Marketing tools
Custom tracking scripts
Transparency
basic

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. No explicit privacy or cookie policies found in the provided HTML snippet; likely located on other pages.
  3. No contact emails or phone numbers explicitly found in the provided content.
  4. Use of modern web technologies and fonts.
  5. No signs of suspicious or malicious content.
  6. No security.txt or vulnerability disclosure policy detected.
  7. No explicit security or incident response policies found.
  8. Domain is secured with HTTPS and has multiple domain transfer protections.
  9. DNSSEC is not enabled, which is a minor security gap.
Technical notes

Notes

The website uses a custom or proprietary CMS with modern JavaScript tracking and font delivery via CDN. Hosting is inferred to be on AWS based on DNS nameservers. Performance is optimized with responsive design and efficient resource loading. Accessibility features are present but could be further audited. SEO is supported by proper meta tags and structured data, though no JSON-LD or Open Graph tags were explicitly found in the provided snippet. The technical stack is modern and well-maintained, supporting a high-quality user experience.
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. 80/100Low24 findingsView report
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