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Security report for aestus.live

Technology · N/a

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

60/100

Risk levelMedium

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

Aestus.live operates the Aestus MEV-Boost Relay, a neutral and non-censoring block relay service designed for Ethereum proof-of-stake validators and block builders. The service is community-driven, emphasizing credible neutrality and open-source principles, serving a significant user base including solo stakers and large staking entities such as LIDO. The relay infrastructure supports Ethereum Mainnet and Holesky testnet, with additional features like high-priority relaying and participation in EigenLayer AVS operations. Technically, the website is straightforward, built with standard HTML and CSS, and does not employ complex frameworks or CMS platforms. The site is accessible and provides clear information but lacks advanced SEO, accessibility features, and performance optimizations. No analytics or advertising technologies are detected, indicating minimal user tracking. From a security perspective, the site lacks visible security headers and published security policies, and no vulnerability disclosure or incident response information is provided. The absence of privacy and cookie policies suggests limited compliance with privacy regulations. However, the site does not collect user data via forms, reducing exposure to common web vulnerabilities. The domain WHOIS data is unavailable due to TLD restrictions, but the website content and community presence support its legitimacy. Overall, aestus.live presents a credible and focused service in the Ethereum staking ecosystem with room for improvement in security posture and privacy compliance. Strategic enhancements in these areas would strengthen trust and regulatory alignment.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

8 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching aestus.live

This scan found 27 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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Full report

€39.90one-time

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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
15
Email security
55
DNS health
80
Network security
100
GDPR outside view
35
Average
60

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

Aestus.live positions itself as a neutral, non-commercial Ethereum MEV relay infrastructure provider, targeting validators and block builders within the Ethereum proof-of-stake ecosystem. Its business model is based on providing open-source infrastructure as a public good, differentiating itself from competitors with commercial interests. The service has established a notable market presence, serving over 400,000 validators and facilitating a measurable portion of Ethereum block auctions. The company leverages community trust and transparency as competitive advantages. Revenue streams are not explicitly stated, consistent with a non-commercial model. The target customer segments include solo stakers, staking pools, and large staking entities. Growth indicators include continuous operation since the Merge and expansion into new relay networks like Holesky. Partnerships and integrations with Ethereum community projects and staking services enhance its ecosystem position.

Security posture

The security posture of aestus.live is moderate. The website uses HTTPS (assumed but not explicitly confirmed), but lacks critical security headers such as Content Security Policy, HSTS, and X-Frame-Options. No forms or user input fields reduce attack surface, and no vulnerable libraries or scripts are detected. However, the absence of published security policies, incident response contacts, and vulnerability disclosure mechanisms indicates gaps in security governance and transparency. Privacy compliance is limited due to missing privacy and cookie policies. The site does not appear to collect personal data, mitigating some risks. Overall, the security maturity is basic with opportunities for improvement in policy publication, header implementation, and incident readiness.

Recommendations

  1. Implement and enforce comprehensive security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish clear privacy and cookie policies to improve transparency and compliance with GDPR and other privacy regulations.
  3. Establish and publicize a vulnerability disclosure program and incident response procedures to build trust and improve security posture.
  4. Consider adding accessibility and SEO improvements to enhance user experience and discoverability.
  5. Regularly audit and monitor the website and infrastructure for vulnerabilities and update dependencies to maintain security hygiene.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
The Aestus MEV-Boost Relay is a neutral, non-censoring block relay for Ethereum proof-of-stake validators and block builders. It operates as a public good free from commercial interests, serving over 400,000 validators including solo stakers and large staking entities such as LIDO.
Key services
Ethereum Mainnet relay, Holesky relay, High priority and optimistic relaying, EigenLayer AVS Operator participation
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS, Open source Ethereum MEV infrastructure
Platforms
Ethereum Mainnet, Holesky testnet
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • No forms collecting sensitive data
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. No privacy, cookie, or terms of service policies found on the site.
  3. Contact information limited to email and Twitter; no phone or physical address.
  4. No forms or data collection mechanisms present.
  5. No analytics or advertising scripts detected.
  6. Content is focused on Ethereum MEV relay infrastructure with a strong emphasis on neutrality and open source.
  7. WHOIS data is unavailable due to TLD restrictions; domain appears privacy protected.
  8. No security headers or explicit security policies published.
  9. No vulnerability disclosure or incident response information available.
Technical notes

Notes

The website is built using basic HTML5 and CSS without reliance on complex frameworks or CMS platforms, indicating a lightweight and maintainable technical infrastructure. The site serves content related to Ethereum MEV relay services and links to related subdomains for mainnet and testnet relays. Performance is moderate with basic mobile optimization and accessibility features. No analytics or tracking scripts are present, reflecting a privacy-conscious approach. Hosting provider details are not disclosed. The technical stack aligns with the site's purpose as an informational and service portal rather than a complex web application. Opportunities exist to enhance SEO, accessibility, and security configurations to improve overall digital maturity.
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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