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Is nos.pt a Scam? Security Check Results - NOS

nos.pt Security Report Summary

nos.pt received a security score of 57 out of 100 in Guard's comprehensive security analysis, classified as "Elevated Risk". This report covers NOS's website security posture. NOS operates in the Telecommunications industry in Portugal.

NOS is a major Portuguese telecommunications company offering a wide range of services including 5G mobile networks, fixed and mobile internet, television, telephone, and alarm systems. The website reflects a mature digital presence with a comprehensive online store and customer support resources. The company targets general consumers in Portugal and maintains a strong market position as a leading telecom operator. Technically, the site leverages Adobe Experience Manager, Salesforce SDKs, and Google marketing and analytics tools, indicating a modern and integrated infrastructure. Security posture is solid with HTTPS, cookie consent, and bot protection, though explicit security policies and vulnerability disclosure mechanisms are not publicly available. Overall, the website is professional, trustworthy, and compliant with GDPR requirements, supporting NOS's credibility and customer engagement.

The security scan identified 32 findings across security headers, SSL/TLS, DNS health, email security, GDPR compliance, and NIS2 compliance analysis modules.

Technologies detected: Adobe Experience Manager (AEM), Google Tag Manager, Google reCAPTCHA, Cookiebot, Salesforce SDKs, Helix RUM (Adobe), JavaScript ES6+.

About this security scan

Guard performs automated security assessments of websites by analyzing SSL/TLS certificates, HTTP security headers, DNS configuration, email authentication protocols (SPF, DKIM, DMARC), GDPR compliance indicators, NIS2 directive compliance, network exposure, and AI-powered business intelligence. Each report provides domain-specific findings, risk scores, and actionable recommendations.

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Is nos.pt Safe? Security Analysis for NOS

https://nos.pt/

Check if nos.pt is a scam or legitimate. Free security scan and reviews.

TelecommunicationsPortugallarge
Adobe Experience Manager (AEM)Google Tag ManagerGoogle reCAPTCHACookiebotSalesforce SDKs+2 more
Analyzed 12/17/2025Completed 6:03:07 PM3mo ago
57
Security Score
MEDIUM RISK

10,000+

Domains scanned

500+

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Domainnos.pt
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SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

AI Summary

NOS is a major Portuguese telecommunications company offering a wide range of services including 5G mobile networks, fixed and mobile internet, television, telephone, and alarm systems. The website reflects a mature digital presence with a comprehensive online store and customer support resources. The company targets general consumers in Portugal and maintains a strong market position as a leading telecom operator. Technically, the site leverages Adobe Experience Manager, Salesforce SDKs, and Google marketing and analytics tools, indicating a modern and integrated infrastructure. Security posture is solid with HTTPS, cookie consent, and bot protection, though explicit security policies and vulnerability disclosure mechanisms are not publicly available. Overall, the website is professional, trustworthy, and compliant with GDPR requirements, supporting NOS's credibility and customer engagement.

Detected Technologies

Adobe Experience Manager (AEM)Google Tag ManagerGoogle reCAPTCHACookiebotSalesforce SDKsHelix RUM (Adobe)JavaScript ES6+

10 urgent findings need attention

1 critical · 9 high

  • + 2 more findings in the full report below
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Guard tracks your live infrastructure daily: certificate expiry, DNS & mail authentication drift, uptime changes, subdomain inventory, and unexpected tracker or content shifts. A full timeline captures every diff so you can prove remediation and spot regressions instantly.

Security drift alerts

Risk score drops, new high-severity issues, and header hardening gaps

Compliance watch

GDPR / NIS2 posture changes with governance evidence snapshots

Infrastructure surface

Unexpected open services, SSL expiry, DNS & email authentication changes

Content & tracker intelligence

Marketing tech shifts, analytics drift, and AI recommendation updates

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Security Headers

3 findings

75/100

GDPR Compliance

3 findings

40/100

NIS2 Compliance

8 findings

17/100

Email Security

5 findings

60/100

🧠AI Business Intelligence

Technology stack, business insights, and market analysis powered by AI.

Business Intelligence

Market & Strategic Analysis

NOS operates in the telecommunications sector in Portugal, providing bundled services that include mobile, internet, TV, and security alarms. The business model is focused on consumer subscriptions and device sales through an online store. The company demonstrates strong branding consistency and trust signals such as official contact details and social media presence. The website's navigation and content structure support customer self-service and product discovery, enhancing user experience. NOS's integration with Salesforce and Adobe platforms suggests a sophisticated CRM and marketing ecosystem. The absence of publicly disclosed security certifications or incident response policies indicates areas for potential improvement in transparency and security governance.

Extracted Contact Information

Marketing Intelligence Data

Security Posture Analysis

Comprehensive Security Assessment

The website employs HTTPS with strong SSL configuration and uses security best practices such as cookie consent management and Google reCAPTCHA to mitigate automated threats. However, there is no explicit mention or public documentation of security policies, incident response plans, or vulnerability disclosure programs. Security headers like Content-Security-Policy and X-Frame-Options were not explicitly detected in the provided data, which could be enhanced. No vulnerabilities or exposed sensitive data were found in the HTML content. Overall, the security posture is good but could benefit from increased transparency and additional header implementations to harden defenses.

Strategic Recommendations

Priority Actions for Security Improvement

1

Publish a dedicated security policy and incident response page to improve transparency and customer trust.

Observations

AI-powered comprehensive website and business analysis.

AI-Enhanced Website Analysis

Business Insights

Company:

NOS

Description:

Liga-te à rede 5G com os nossos tarifários móveis ou pacotes de Internet e televisão. Internet fixa e móvel, loja online com smartphones e muito mais.

Key Services:
5G mobile networkFixed and mobile internetTelevision servicesTelephone servicesAlarm and security solutionsOnline retail of smartphones and gadgets
Content Quality:

good

Branding:

consistent

Technical Stack

Technologies:
Adobe Experience Manager (AEM)Google Tag ManagerGoogle reCAPTCHACookiebotSalesforce SDKsHelix RUM (Adobe)JavaScript ES6+
Frameworks:
Adobe Experience ManagerSalesforce Lightning Design System
Platforms:
WebMobile responsive
Performance:

moderate

Mobile:

good

Accessibility:

basic

SEO:

good

Security Assessment

Security Score:
85/100
Best Practices:
  • Use of HTTPS
  • Cookie consent with opt-in/opt-out
  • Use of Google reCAPTCHA for bot protection
  • No exposed sensitive data in HTML
  • Use of Adobe Helix RUM for monitoring

Analytics & Tracking

Services:
Google Analytics (via Google Tag Manager)Adobe Helix RUM
Tracking Level:moderate
Privacy Compliance:good

Advertising & Marketing

Ad Networks:
Google Ads (AW-610647209)
Tracking Pixels:
Cookiebot
Marketing Tools:
CookiebotAdobe Helix RUM
Transparency Level:good

Website Quality Assessment

Design Quality:good
User Experience:good
Content Relevance:good
Navigation Clarity:good
Professionalism:good
Trustworthiness:high

Key Observations

1

Website is fully accessible with no blocking or WAF challenges.

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🛡️Security Headers

HTTP security headers analysis and recommendations.

Security Headers

HTTP security headers analysis

75/100
Score

Missing X-XSS-Protection header

MEDIUM

Legacy XSS protection (deprecated but still recommended)

Missing Permissions-Policy header

MEDIUM

Controls browser features and APIs

Sensitive data may be cached

LOW

Cache-Control header should include "no-store" for sensitive pages

👤GDPR Compliance

Privacy and data protection assessment under GDPR regulations.

GDPR Compliance

Privacy and data protection assessment

40/100
Score

No Privacy Policy found

HIGH

GDPR requires a clear and accessible privacy policy

EU business without adequate privacy measures

CRITICAL

EU businesses are subject to strict GDPR requirements

Third-party services without privacy policy

HIGH

Detected services: Google Analytics, Facebook, LinkedIn, YouTube

GDPR Compliance Analysis

Privacy Policy0% confidence
Cookie Policy85% confidence
Contact Information Found90% confidence
emailphoneform

🛡️NIS2 Compliance

Network & Information Security Directive compliance assessment.

NIS2 Compliance

Network & Information Security Directive

17/100
Score

No information security framework found

HIGH

NIS2 requires documented cybersecurity and information security measures

No vulnerability disclosure policy

MEDIUM

NIS2 encourages coordinated vulnerability disclosure

No security policy documentation found

HIGH

NIS2 requires documented cybersecurity governance and risk management

No incident response procedures found

HIGH

NIS2 requires documented incident response and business continuity plans

No business continuity planning found

MEDIUM

NIS2 emphasizes operational resilience and business continuity

No security contact information

HIGH

NIS2 requires clear incident reporting channels

No vulnerability reporting mechanism

MEDIUM

Clear vulnerability reporting supports coordinated disclosure

No NIS2 reference found

LOW

Consider explicitly mentioning NIS2 compliance efforts

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📧Email Security

SPF, DKIM, and DMARC validation and email security assessment.

Email Security

SPF, DKIM, and DMARC validation

60/100
Score

DMARC not enforcing

MEDIUM

DMARC policy is set to "none"

No DKIM record found

MEDIUM

DKIM adds cryptographic signatures to emails

No BIMI Record

LOW

BIMI displays brand logos in email clients

No MTA-STS Policy

MEDIUM

MTA-STS enforces TLS for email delivery

No TLS-RPT Record

LOW

TLS-RPT provides reporting for email TLS issues

SPF
Sender Policy Framework
DKIM
DomainKeys Identified Mail
DMARC
Domain-based Message Authentication
MX Records
Mail Exchange Records
BIMI
Brand Indicators
MTA-STS
Mail Transfer Agent Security
TLS-RPT
TLS Reporting
DNSSEC
DNS Security
SPF Details
Record:
v=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com ip4:194.79.86.52 ip4:194.79.86.61 ip4:194.79.86.2 ip4:62.169.70.36 ip4:195.23.37.19 ip4:195.23.37.20 ip4:194.79.86.30 ip4:194.79.86.32 mx -all
DNS Lookups:3/10
Policy:-all
DMARC Details
Policy:none
Subdomain Policy:none
Aggregate Reports:dmarc.reporttrend@nos.pt
Forensic Reports:dmarc.reporttrend@nos.pt

🏆SSL/TLS Security

Certificate validity and encryption analysis.

SSL/TLS Security

Certificate validity and encryption analysis

32/100
Score

Weak Protocols Supported

HIGH

Server supports weak protocols: TLSv1.1

Certificate Transparency Not Implemented

LOW

Certificate is not logged in Certificate Transparency logs

SSL Certificate Expires Within 90 Days

MEDIUM

SSL certificate expires in 46 days

Weak SSL Key Length

HIGH

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

HSTS Not Enabled

MEDIUM

HTTP Strict Transport Security (HSTS) is not configured

Mixed Content Detected

MEDIUM

4 resources loaded over insecure HTTP

Protocol Support

TLSv1.3TLSv1.2TLSv1.1

OCSP Status

OCSP Stapling Enabled

📊DNS Health

DNS configuration and security assessment.

DNS Health

DNS configuration and security assessment

50/100
Score

DNSSEC Not Enabled

MEDIUM

DNSSEC is not configured for this domain

CAA Records Not Configured

LOW

Certificate Authority Authorization (CAA) records not found

Domain Expires Soon

HIGH

Domain expires in 21 days

Domain Transfer Lock Not Enabled

MEDIUM

Domain can be transferred without authorization

Domain Delete Lock Not Enabled

LOW

Domain can be deleted without additional verification

DMARC Policy Set to None

LOW

DMARC is configured but not enforcing any policy

Domain Registration Details

Domain Age
16 years(mature)
Expiry Risk
high(expired)
Protection Level
none
Suspicious Indicators Detected
  • No domain protection locks enabled

DNS Records

A Records:104.18.18.73, 104.18.19.73
AAAA Records:2606:4700::6812:1349, 2606:4700::6812:1249
Name Servers:
ns5.nos.ptDNS only
ns6.nos.ptDNS only
MX Records:
10: nos.in.tmes.trendmicro.eu
SOA:Serial: 2391476543, TTL: 1800s

DNSSEC Status

DNSSEC Not Enabled

DNS Performance

Resolution Time:39ms

SPF Analysis

SPF Record:
v=spf1 include:spf.protection.outlook.com include:spf.tmes.trendmicro.com ip4:194.79.86.52 ip4:194.79.86.61 ip4:194.79.86.2 ip4:62.169.70.36 ip4:195.23.37.19 ip4:195.23.37.20 ip4:194.79.86.30 ip4:194.79.86.32 mx -all

Network Security

Port scanning and network exposure analysis.

Network Security

Port scanning and network exposure analysis

100/100
Score

Good Network Security Posture

LOW

No unnecessary services detected on common risky ports

How does nos.pt compare?

See how nos.pt stacks up against similar websites in the same industry.

🔧Technical Analysis

Detailed technical findings and analysis from AI assessment.

Technical Analysis

Comprehensive security assessment findings

Additional Findings

The website is built on Adobe Experience Manager, integrating Salesforce Lightning Design System and various Salesforce SDKs, indicating a robust enterprise-grade CMS and CRM integration. Google Tag Manager and Cookiebot are used for analytics and consent management, respectively. The site is mobile responsive with good SEO practices including meta tags and structured data. Performance is moderate, with potential for optimization in loading times and script management. Accessibility is basic and could be improved. The technical stack supports a comprehensive digital marketing and e-commerce experience, but continuous monitoring and updates are recommended to maintain security and performance.
Professional PDF & Marketing Data

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PDF Report & Export

PDF download, email delivery, unlock code

39.90 €one-time • Incl. 21% VAT

Marketing Intelligence

Contact emails, phone numbers & warm leads

49.90 €one-time • Incl. 21% VAT

Plan Comparison

FeaturePDF ReportMarketing+
Full security analysis
Professional PDF export
Email delivery
Lifetime access + unlock code
Contact emails & phones
Marketing outreach data

Already purchased?

Order summary

Domainnos.pt
Access tierFull report or marketing add-on

Digital reports are delivered immediately after payment. By continuing you acknowledge the withdrawal waiver described in our Returns & Refunds policy.

VisaMastercardApple PayGoogle Pay

Secure payments processed via EveryPay. Prices in EUR; Incl. 21% VAT.

SEQ SIA

Lastadijas 12 k-3, Riga, Latvia, LV-1050

Reg. No. 40203410806 • VAT LV40203410806

Support: guard@offseq.com+371 2256 5353

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