Security report for realcity.cz
Realcity · Real Estate · Czech Republic
Realcity.cz is a Czech Republic-based real estate platform providing a comprehensive online marketplace for property sales, rentals, and auctions. It targets both real estate professionals and consumers seeking properties across various categories including flats, houses, land, commercial, and recreational properties. The website features a professional design with structured data for enhanced search engine visibility and integrates multiple analytics and advertising technologies to optimize user engagement and monetization. Technically, the site employs modern web technologies such as Bootstrap for responsive design, jQuery for interactivity, Google Tag Manager for analytics management, and Didomi for consent management, indicating a mature digital infrastructure. Security measures include HTTPS enforcement and use of Google reCAPTCHA to protect forms, though the absence of security headers and explicit security policies suggests room for improvement. From a security and compliance perspective, the site demonstrates good privacy compliance with a visible cookie consent mechanism and GDPR-aligned consent management. However, the lack of a published privacy policy and terms of service in the accessible content, combined with missing WHOIS domain registration data, limits full trust verification and compliance assurance. Overall, Realcity.cz presents as a professional and trustworthy real estate portal with solid technical foundations but would benefit from enhanced transparency in domain registration, privacy policies, and security disclosures to strengthen its security posture and user trust.
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.
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.
- High
No SPF record found
SPF helps prevent email spoofing
What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"
- RFC 7208
- NIS2 21(2)(e)
- IR 2024/2690 6.7.2(k): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(k): Network security
- NIST SP 800-177r1
- High
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 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
- NIS2 21(2)(h)
- IR 2024/2690 9.2(b): Implementing Regulation (EU) 2024/2690, Annex point 9.2(b): Cryptography
- NIST SC-13: NIST SP 800-53 Rev. 5 SC-13: Cryptographic Protection
- High
Need hands-on remediation? Email guard@offseq.com
Keep watching realcity.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.
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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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
- 65
- Email security
- 55
- DNS health
- 80
- Network security
- 100
- Average
- 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
Technical appendix
Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.
Business context
Business profile
Security posture
Recommendations
- Publish a comprehensive privacy policy and terms of service accessible from the homepage.
- Implement and configure security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options.
- Obtain and publish domain WHOIS information or ensure transparency about privacy protection usage.
- Create and publish a security.txt file to facilitate vulnerability reporting and incident response.
- Regularly audit third-party scripts and advertising partners to minimize privacy and security risks.
Contact details published on the site
Site observations
Automated reading of the public site. Ratings are indicative.
Business
- Company
- Realcity
- Description
- Realcity.cz is a Czech real estate website offering a comprehensive platform for buying, selling, and renting properties including flats, houses, land, commercial and recreational objects. It targets real estate experts and consumers interested in Czech real estate market.
- Key services
- Property listings for sale, rent, and auction, Real estate agency directory, Real estate news and magazine content
- Content quality
- good
- Branding
- consistent
Technology
- Stack
- jQuery, Bootstrap, Google Tag Manager, Google reCAPTCHA, Didomi Consent Management Platform, Gemius Analytics, Teads Analytics
- Frameworks
- Bootstrap
- Performance
- moderate
- Mobile
- good
- Accessibility
- basic
- SEO
- good
Security
- Observed score
- 75/100
- Good practices seen
- HTTPS enforced
- Use of Google reCAPTCHA for forms
- Consent management for cookies and tracking
Analytics and tracking
- Services
- Gemius, Google Analytics (via GTM)
- Tracking level
- extensive
- Privacy practices
- good
Advertising
- Ad networks
- Teads, AdActive
- Tracking pixels
- Gemius
- Marketing tools
- Didomi CMP
- Transparency
- good
Site quality
- Design
- good
- User experience
- good
- Content relevance
- good
- Navigation
- good
- Professionalism
- good
- Trustworthiness
- high
Key observations
- Website is a professional real estate portal focused on Czech market.
- No WHOIS data available, limiting domain trust assessment.
- Comprehensive cookie consent and privacy management implemented.
- Multiple analytics and advertising technologies in use.
- No explicit privacy policy or terms of service found in provided content.
- Contact phone numbers provided via structured data but no emails found.
- No visible security.txt or vulnerability disclosure information.
Technical notes
Notes
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.
- MITRE CWE (opens in a new tab)4.20 (2026-04-30) · CWE Terms of Use (free use with attribution, © MITRE)
- OWASP Top 10:2025 (opens in a new tab)2025 (membership per CWE 4.20) · CC BY-SA 4.0
- MITRE CAPEC (opens in a new tab)3.9 (2023-01-24) · CAPEC Terms of Use (free use with attribution, © MITRE)
- OWASP ASVS (opens in a new tab)5.0.0 · CC BY-SA 4.0
- OWASP Web Security Testing Guide (opens in a new tab)latest (checklist.json, master) · CC BY-SA 4.0
- OWASP Secure Headers Project (opens in a new tab)2026-10-18 · Apache-2.0
- Mozilla Server Side TLS (intermediate) (opens in a new tab)6.0 · MPL-2.0
- NIST SP 800-53 Rev. 5 (OSCAL catalog) (opens in a new tab)5.2.0 · Public domain (US Government work)
- Directive (EU) 2022/2555 (NIS2) (opens in a new tab)OJ L 333, 27.12.2022 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Commission Implementing Regulation (EU) 2024/2690 (opens in a new tab)OJ L, 18.10.2024 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Regulation (EU) 2016/679 (GDPR) (opens in a new tab)OJ L 119, 4.5.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Directive 2002/58/EC (ePrivacy), consolidated (opens in a new tab)19.12.2009 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- RFC Editor metadata (opens in a new tab)per-RFC (obsolete RFCs rejected) · IETF Trust Legal Provisions (metadata only)
- NIST CSRC, W3C TR, IETF Datatracker, EDPB, EUR-Lex CELLAR and gesetze-bayern.de (opens in a new tab)per document · Titles and links only
- NIST NVD CVE API 2.0 (opens in a new tab)live records · Public domain (NVD); CVE® records © MITRE, free use
- W3C WCAG 2.2 (opens in a new tab)W3C Recommendation (wcag.json) · W3C Software and Document License
- ETSI EN 301 549 (opens in a new tab)V3.2.1 (2021-03), clause headings · Clause numbers and titles only (© ETSI)
- Directive (EU) 2019/882 (European Accessibility Act) (opens in a new tab)OJ L 151, 7.6.2019 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
- Directive (EU) 2016/2102 (Web Accessibility Directive) (opens in a new tab)OJ L 327, 2.12.2016 · EUR-Lex reuse under Commission Decision 2011/833/EU (© European Union)
Retrieved 2026-10-25
Earlier scans of this domain
- 63/100Medium30 findingsView report
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