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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 presents itself as a blockchain data explorer offering multichain search capabilities for transactions, addresses, tokens, and decentralized applications across top blockchain networks. The website targets crypto users and blockchain enthusiasts seeking cross-chain blockchain data insights. The business model centers on providing a comprehensive blockchain explorer service, positioning itself as a useful tool in the blockchain technology sector. The site features a modern design using Chakra UI and integrates Google Tag Manager for analytics and marketing purposes. However, the absence of WHOIS registration data raises concerns about domain legitimacy and trustworthiness. No privacy, cookie, or terms of service policies are visible, which impacts compliance and user trust. Security posture is weak due to lack of visible security headers and unclear SSL configuration. Overall, the site is functional and professionally designed but lacks critical trust and compliance elements.

Scanned

This is an earlier scan of blockscout.com. View the latest report

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 technology sector, specifically focusing on blockchain data exploration. Its competitive advantage lies in supporting multiple blockchain networks and providing detailed transaction and token information. The business model likely involves offering free or freemium access to blockchain data, potentially monetized through partnerships or advertising. The target customer segments include blockchain developers, crypto traders, and enthusiasts. The absence of company registration or contact details limits transparency. The partnership ecosystem is not evident from the site. Growth indicators and revenue streams are not disclosed. Strategic observations suggest the need for enhanced legitimacy signals and compliance documentation to strengthen market position.

Security posture

The current security maturity level of the website is low. There is no evidence of security policies, incident response contacts, or certifications. The lack of security headers and unclear SSL/TLS status are vulnerabilities that could expose users to risks. Compliance gaps include missing privacy and cookie policies, which are critical for GDPR and other regulations. Data protection practices and incident response readiness are not demonstrated. The security culture appears minimal based on available information. The business impact of these gaps includes potential legal exposure and reduced user trust. Immediate improvements in security configuration and policy transparency are recommended.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies to ensure GDPR compliance and enhance user trust.
  2. Register the domain properly and ensure WHOIS information is accurate and publicly available to improve legitimacy.
  3. Configure and enforce HTTPS with strong SSL/TLS settings and implement security headers such as Content-Security-Policy and X-Frame-Options.
  4. Establish and publish security policies and incident response contacts to demonstrate security maturity and readiness.
  5. Enhance transparency by providing clear business contact information and certifications to build credibility.
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 information, dapp discovery
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Tag Manager, Google Ads Conversion Tracking
Frameworks
Chakra UI
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

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 WHOIS registration data found, raising legitimacy concerns
  3. No privacy, cookie, or terms of service policies detected
  4. No contact information or security policies visible on site
  5. Website uses modern UI framework Chakra UI and Google Tag Manager for analytics
  6. No explicit security headers or SSL configuration details available
  7. Content is focused on blockchain data exploration and is safe for general audiences
Technical notes

Notes

The website uses modern front-end technologies including Chakra UI for styling and Google Tag Manager for analytics and marketing. The HTML and CSS appear valid and the site is mobile optimized with good navigation clarity. Performance is moderate with no evident broken elements. However, there is no detected CMS or hosting provider information. The lack of visible security headers and unclear SSL configuration represent technical risks. There is an opportunity to improve accessibility features and SEO optimization further. Overall, the technical infrastructure supports a good user experience but requires enhancements in security and compliance aspects.
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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