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Security report for twisto.cz

Twisto · Finance · Czech Republic

Partial score · DNS & email only

75/100

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

Twisto is a Czech financial technology company offering buy now, pay later services, allowing customers to shop and pay up to 45 days later. The website is professionally designed, mobile-optimized, and uses modern web technologies such as React and Next.js. It integrates multiple analytics and tracking services including Google Tag Manager, Microsoft Clarity, TikTok, and Facebook pixels, indicating a mature digital marketing approach. Security posture is strong with HTTPS enforced and no visible sensitive data exposure, though explicit security headers and policies are not evident. The absence of WHOIS data suggests privacy protection, common for financial services, but limits domain trust verification. Privacy and cookie policies are not clearly found, which is a compliance gap. Overall, the site presents a trustworthy and professional front for its financial services in the Czech market.

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.

    • 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

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

Keep watching twisto.cz

This scan found 13 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.

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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
Email security
75
DNS health
90
Network security
100
Average
82
After the cap
75

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 twisto.cz, from OffSeq Breach.

Total records
13,493
Employees
0
Customers
13,492
Third parties
1
Weak passwords
12%

8 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for twisto.cz.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

Twisto operates in the finance sector, targeting general consumers in the Czech Republic with deferred payment solutions. Its business model centers on facilitating purchases with delayed payment options via a dedicated app. The company appears medium-sized with consistent branding and a clear market position as a leading local payment service provider. The website content is relevant and well-structured, supporting user engagement and conversion. The presence of extensive tracking and analytics tools suggests a focus on data-driven marketing and customer insights. However, the lack of visible contact information and compliance documentation may impact user trust and regulatory adherence.

Security posture

The website demonstrates a good security baseline with HTTPS and no exposed sensitive information in the HTML. However, it lacks explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options, which are recommended best practices. No vulnerability disclosures or incident response contacts are published, limiting transparency. The extensive use of third-party tracking scripts increases the attack surface and privacy risks. The absence of privacy and cookie policies with consent mechanisms is a compliance concern under GDPR. Overall, the security posture is solid but could be improved with enhanced headers, published policies, and transparency measures.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with user consent mechanisms to ensure GDPR compliance.
  2. Add security headers including Content Security Policy, HSTS, and X-Frame-Options to strengthen defense against common web attacks.
  3. Provide clear contact information including security incident response and data protection officer contacts to improve transparency and trust.
  4. Review and minimize third-party tracking scripts to reduce privacy risks and improve site performance.
  5. Consider publishing a security.txt file and vulnerability disclosure policy to encourage responsible security reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Twisto
Description
Plať po svém. Nakupuj a plať do 45 dnů nebo později. Díky Twisto appce máš všechny svoje platby, splátky a jiné služby pohromadě.
Key services
Deferred payment, Payment app, Installment payments
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Microsoft Clarity, TikTok Pixel, Facebook Pixel
Frameworks
Next.js
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Microsoft Clarity, Google Analytics (via GTM), TikTok Analytics, Facebook Analytics
Tracking level
extensive
Privacy practices
poor

Advertising

Tracking pixels
Microsoft Clarity, TikTok Pixel, Facebook Pixel
Marketing tools
Microsoft Clarity
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge detected
  2. WHOIS data is unavailable, likely due to privacy protection
  3. No explicit privacy, cookie, or terms of service pages detected in the provided HTML
  4. Multiple tracking and analytics scripts are present indicating extensive user data collection
  5. No direct contact emails or phone numbers found in the HTML content
  6. Website uses modern web technologies and frameworks
  7. Content is in Czech language targeting Czech market
  8. No security.txt or vulnerability disclosure information found
Technical notes

Notes

The website is built using modern JavaScript frameworks, primarily React and Next.js, enabling server-side rendering and good performance. It leverages multiple analytics and marketing tools integrated via Google Tag Manager. The site is mobile-optimized with responsive design and good accessibility features. However, no CMS or hosting provider details are explicitly found. Performance appears moderate with potential for optimization by reducing third-party scripts. The technical implementation is robust but could benefit from enhanced security configurations and privacy compliance features.
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. 69/100Medium31 findingsView report
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