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Security report for blockscout.com

Technology · N/a

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

Blockscout.com is a technology-focused website providing a powerful multichain blockchain data explorer service. It enables users to search and explore transactions, addresses, tokens, and decentralized applications across multiple blockchain networks. The website targets crypto users and blockchain enthusiasts seeking cross-chain blockchain data. The business model centers on offering blockchain data exploration tools, positioning itself as a niche service in the blockchain technology sector. The website demonstrates a professional design with good content relevance and user experience, optimized for mobile devices and employing modern web technologies such as Chakra UI and React frameworks. Google Tag Manager and Google Ads are used for analytics and advertising purposes, indicating a moderate level of digital marketing maturity. However, the security posture shows room for improvement, with no detected security headers or explicit security policies, and no visible privacy or cookie policies, which impacts privacy compliance negatively. The WHOIS data is missing or indicates the domain is not found in the registry, which raises concerns about domain registration legitimacy and reduces business credibility. Overall, the website is functional and professional but lacks transparency in privacy, contact, and security policies, which should be addressed to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

6 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

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

    • 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

    • 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

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

Keep watching blockscout.com

This scan found 21 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
75
Security headers
20
Email security
85
DNS health
85
Network security
100
GDPR outside view
53
Average
70

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

Blockscout operates in the blockchain technology sector, providing a specialized service as a multichain blockchain explorer. Its competitive advantage lies in supporting multiple blockchain networks and offering comprehensive search capabilities for transactions, addresses, tokens, and dapps. The business likely generates revenue through value-added services or partnerships in the crypto ecosystem. The target customers are blockchain developers, crypto traders, and enthusiasts requiring detailed blockchain data. The website's partnership ecosystem is not explicitly detailed, and no related or subsidiary domains were identified. Growth indicators are not visible from the website content. Strategic observations suggest the need for enhanced transparency in business information and compliance documentation to strengthen market position and user trust.

Security posture

The website employs HTTPS and uses Google Tag Manager and Google Ads, indicating basic security and marketing infrastructure. However, no security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected, which are important for mitigating common web vulnerabilities. There is no visible privacy policy, cookie consent mechanism, or incident response contact information, indicating gaps in compliance with GDPR and other privacy regulations. The absence of WHOIS data and domain registration details further complicates trust assessment. No vulnerabilities or exposed sensitive data were identified in the HTML content, but the lack of security best practices and policies suggests a moderate security maturity level. Incident response readiness and security culture indicators are not evident from the website content.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with GDPR compliance details.
  2. Add visible contact information including support and security incident response channels.
  3. Configure and enforce security headers such as CSP, HSTS, X-Frame-Options, and X-Content-Type-Options.
  4. Verify and update WHOIS domain registration information to improve transparency and trust.
  5. Enhance accessibility features and conduct regular security audits to identify and remediate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data
Key services
multichain search, transaction lookup, address lookup, token and dapp discovery
Content quality
good
Branding
consistent

Technology

Stack
Chakra UI (CSS framework), Google Tag Manager, Google Ads (AW-17026643666)
Frameworks
Chakra UI
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
50/100

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Google Ads
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is accessible with full content and no WAF blocking
  2. No privacy, cookie, or terms of service policies found or linked
  3. No contact emails or phone numbers explicitly provided
  4. Uses Google Tag Manager and Google Ads for analytics and advertising
  5. WHOIS data is missing or domain not found in WHOIS registry
  6. Website focuses on blockchain data exploration and multichain search
  7. No security headers or explicit security policies detected in HTML content
Technical notes

Notes

The website uses modern front-end technologies including React and Chakra UI, providing a responsive and visually appealing user interface. Google Tag Manager and Google Ads integration indicate active marketing and analytics efforts. The site appears to be hosted on a CDN or cloud platform (cdn.prod.website-files.com) but no explicit hosting provider was identified. Performance is moderate with good mobile optimization and basic accessibility features. SEO optimization is supported by meta tags and Open Graph data. However, the absence of security headers and privacy compliance mechanisms represents technical debt and compliance risk. There is an opportunity to improve technical robustness by implementing security best practices and enhancing privacy controls.
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. 70/100Medium29 findingsView report
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