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Security report for opera.mc

Opéra de Monte-Carlo · Hospitality

Partial score · DNS & email only

71/100

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

The website's overall security posture is currently at risk due to a critical vulnerability: the absence of HTTPS encryption, which compromises data confidentiality and user trust. While network security and email security measures are strong, several medium-level issues such as missing security headers, lack of GDPR and NIS2 compliance, and DNSSEC not being enabled expose the business to regulatory, operational, and reputational risks. The failure to implement essential security headers leaves the site vulnerable to common web attacks. Non-compliance with GDPR and NIS2 could result in legal penalties and fines. DNS vulnerabilities could allow domain hijacking or spoofing attacks, impacting service availability and customer confidence. Immediate remediation of HTTPS is crucial to protect sensitive data and maintain customer trust. Addressing these gaps will significantly improve the website's resilience against cyber threats and regulatory compliance posture.

Scanned

3 of 7 checks could not complete. The site may be unreachable or blocking automated scans, so the results below cover only what could be checked. Try a rescan later.

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

Priority findings

1 finding rated critical or high. Fix these first.

  1. 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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

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

Keep watching opera.mc

This scan found 4 issues across 3 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

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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
0
Email security
100
DNS health
85
Network security
100
Average
71

Not counted

  • Security headers: did not complete in this scan.
  • GDPR outside view: did not complete in this scan.
  • 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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention opera.mc, from OffSeq Breach.

No leaked records found

Breach holds no records for opera.mc right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Technical notes

Notes

The most critical finding is the complete lack of HTTPS encryption, leaving data transmitted between users and the site vulnerable to interception and tampering (Man-in-the-Middle attacks). The medium severity issues include failure to implement security headers, which opens vectors for clickjacking, XSS, and other injection attacks. The absence of DNSSEC allows attackers to spoof DNS responses, redirecting users to malicious sites. GDPR and NIS2 assessment failures highlight gaps in privacy and cybersecurity regulatory compliance, increasing the risk of legal consequences. While DNS Health scored 85/100 and network security is strong, the missing CAA records and incomplete DNS configurations indicate potential weaknesses in certificate issuance and domain integrity.
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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