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Security report for isoplus.rs

ISOPLUS d.o.o. · Energy · Serbia

High risk. 10 critical or high findings in Email security, Security headers and 3 other checks.

Security score

46/100

Risk levelHigh

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

ISOPLUS d.o.o. is a Serbian company specializing in the sale and service of pre-insulated pipes and related products for district heating systems. The company operates within the ISOPLUS holding group and serves industrial clients primarily in the energy sector. With over 130 projects in the last five years and annual delivery of approximately 2500 km of pipes, ISOPLUS holds a solid market position regionally. Their offerings include a wide range of pipe products, fittings, accessories, and services such as network control, design, and installation support. The website reflects a professional business with clear contact information and certifications, although it lacks some compliance documentation such as privacy and cookie policies.

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

10 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. 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';…

  3. 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

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

Keep watching isoplus.rs

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.

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Recommended

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  • 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
62
Security headers
25
Email security
75
DNS health
60
Network security
20
GDPR outside view
35
Average
46

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

The company targets B2B customers in the energy and industrial sectors, providing comprehensive solutions for heating infrastructure. Their business model focuses on product sales combined with value-added services including installation and maintenance. The presence of ISO certifications and references to numerous projects indicates a mature operation with quality assurance. The partnership with ISOCALC (isoplus.dk) suggests integration with technical tools enhancing customer service. The company is medium-sized, founded in 2017, and operates primarily in Serbia with a global delivery footprint.

Security posture

The website uses HTTPS and common WordPress security plugins like Wordfence, indicating baseline security measures. However, the absence of DNSSEC, security headers, and published security or privacy policies highlights areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. The lack of GDPR compliance documentation is a notable gap given the European context. Incident response and vulnerability disclosure mechanisms are not publicly available, which could impact trust and regulatory compliance.

Recommendations

  1. Publish comprehensive privacy and cookie policies to ensure GDPR compliance.
  2. Enable DNSSEC for the domain to enhance DNS security.
  3. Implement security headers such as Content-Security-Policy, X-Frame-Options, and HSTS.
  4. Add a security.txt file and vulnerability disclosure policy to improve transparency and incident response readiness.
  5. Regularly update WordPress core and plugins to mitigate vulnerabilities and improve performance.

Contact details published on the site

Addresses
Legal name
ISOPLUS d.o.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ISOPLUS d.o.o.
Description
Preduzeće za prodaju predizolovanih elemenata daljinskog sistema grejanja iz proizvodnog asortimana holdinga ISOPLUS. Sistematska organizacija svih koraka poslovanja i njihov svakodnevni nadzor su preduslov poslovnosti i vrhunskog kvaliteta proizvoda i usluga. Primarne obaveze su zaštita zdravlja i bezbednosti zaposlenih, zaštita životne sredine i racionalno korišćenje energetskih resursa. ISOPLUS nudi kompletne usluge uključujući proizvode, isporuku, montažne i dodatne izolacione radove.
Key services
Sale of pre-insulated pipes, Fittings and armature, Flexible pipes, Industrial pipes, Double pipes, Joining techniques, Accessories, Network control, Design, Service
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.12.4, LayerSlider 5.6.9, Revolution Slider 5.2.6, Font Awesome 4.7.0, Yoast SEO plugin 12.7.1, Contact Form 7 5.1.6, WordPress 5.3.20
Frameworks
WordPress, Visual Composer
Platforms
WordPress CMS
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
60/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • Use of Wordfence security plugin (indicated by Wordfence script)

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Marketing tools
Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multiple pages.
  2. No privacy or cookie policy found, which is a compliance gap.
  3. Contact information is clearly presented with phone, email, and physical addresses.
  4. Use of WordPress CMS with common plugins and sliders.
  5. No social media links detected in header or footer.
  6. No security.txt or vulnerability disclosure information found.
  7. Website uses HTTPS with no visible SSL issues.
  8. No DNSSEC enabled for domain.
  9. No visible security headers in HTML content.
  10. Certifications and references are prominently displayed, enhancing trust.
Technical notes

Notes

The website is built on WordPress 5.3.20 using Visual Composer, LayerSlider, Revolution Slider, and Contact Form 7 plugins. It uses jQuery 1.12.4 and Font Awesome 4.7.0 for UI elements. The hosting provider is Mainstream Public Cloud Services d.o.o., consistent with WHOIS data. Performance is moderate with basic mobile optimization. SEO is enhanced by Yoast SEO plugin. The site lacks advanced accessibility features and modern JavaScript frameworks. The technical stack is stable but could benefit from modernization and improved security configurations.
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. 46/100High36 findingsView report
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