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Security report for selly.pl

Selly Sp. z o.o. · E-commerce · Poland

Partial score · DNS & email only

73/100

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

Selly Sp. z o.o. operates a modern e-commerce SaaS platform primarily targeting Polish online retailers and wholesalers. The platform offers comprehensive services including store setup, B2B wholesale capabilities, custom graphic templates, and extensive integrations with payment and accounting systems. The company emphasizes SEO optimization and marketing support, positioning itself as a competitive player in the Polish e-commerce market since 2015. Technically, the website is built on WordPress with the Flatsome theme, leveraging modern JavaScript libraries and Google Tag Manager for analytics. The site is well-optimized for performance and mobile devices, with clear navigation and professional design. Security posture is strong with HTTPS enforced and no visible vulnerabilities, though explicit security headers could be better documented. Privacy compliance is robust with clear privacy and cookie policies and consent mechanisms in place. The absence of public WHOIS data for the domain slightly reduces trust but is mitigated by the company's visible certifications, client logos, and professional content. Overall, the website presents a trustworthy and mature digital presence suitable for its business model.

Scanned

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

2 findings 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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

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

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching selly.pl

This scan found 16 issues across 4 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

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
42
Email security
70
DNS health
80
Network security
100
Average
73

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

Technical appendix

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

Business context

Business profile

Selly is positioned as a medium-sized Polish e-commerce technology provider offering SaaS solutions for online stores and wholesalers. Its business model relies on subscription fees with additional paid services such as custom modules and migration packages. The company targets SMEs and enterprises seeking scalable and customizable e-commerce platforms with strong SEO and marketing capabilities. The presence of certifications like Certyfikat Ceneo.pl and Przedsiębiorstwo FAIR PLAY, along with a portfolio of client logos, indicates a reputable market presence. The platform supports multiple integrations and international sales, suggesting a growth-oriented strategy. Marketing tools and ad networks used reflect a focus on digital customer acquisition and retention. The company does not publicly disclose detailed financials or parent/subsidiary relationships, indicating an independent operation.

Security posture

The website enforces HTTPS and uses Google Tag Manager and HubSpot for analytics, indicating a modern approach to data collection and marketing. No critical security headers were explicitly found in the HTML, suggesting room for improvement in security hardening. There is no public security policy or incident response contact information, which is a gap in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the source. The lack of WHOIS data is a minor concern but does not directly impact the website's security posture. Overall, the security maturity is good but could be enhanced by publishing security policies and implementing explicit security headers.

Recommendations

  1. Publish a dedicated security policy and incident response contact information to improve transparency and trust.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Regularly audit third-party scripts and plugins for vulnerabilities and update them promptly.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Consider publishing WHOIS or domain registration information to improve domain trustworthiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Selly Sp. z o.o.
Description
Selly provides a modern e-commerce platform with B2B capabilities, offering ready-made graphic templates, numerous integrations, and SEO optimization. They support online stores and wholesalers with technical support and development services.
Key services
Online store setup, B2B wholesale platform, Custom graphic templates, Integrations with payment and accounting systems, Marketing support (SEO, Google Ads, Meta Ads), Migration services
Content quality
good
Branding
consistent

Technology

Stack
WordPress, WooCommerce, jQuery, Google Tag Manager, YouTube Embed Plus Pro
Frameworks
Flatsome WordPress theme
Platforms
WordPress CMS
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for analytics

Analytics and tracking

Services
Google Analytics, HubSpot
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, Meta Ads, Allegro Ads
Tracking pixels
HubSpot
Marketing tools
HubSpot WordPress plugin
Transparency
good

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. Professional e-commerce platform targeting Polish market
  3. Strong SEO and marketing integration
  4. Clear privacy and cookie policies with consent mechanisms
  5. No visible security policy or incident response contact publicly available
  6. WHOIS data not publicly available, which is unusual but not uncommon for .pl domains
  7. Use of modern web technologies and CMS
  8. Multiple client logos and certifications enhance trust
Technical notes

Notes

The website is built on WordPress CMS using the Flatsome theme, a popular e-commerce theme optimized for WooCommerce. It uses jQuery 3.7.1 and integrates Google Tag Manager and HubSpot for analytics and marketing automation. The site loads CSS and JS assets efficiently with lazy loading and minification. The design is responsive and optimized for mobile devices. Performance is fast with prefetching and preloading techniques. The site uses structured data (JSON-LD) for SEO enhancements. No hosting provider information was detected from the HTML. Overall, the technical infrastructure is modern and well-implemented with minor opportunities for improvement in accessibility and security headers.
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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