Skip to main content

Security report for fixer.io

Fixer · Technology · Austria

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

73/100

Risk levelMedium

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

Fixer is a well-established API service providing real-time and historical foreign exchange rates and currency conversion data. Positioned as a market leader, it serves a broad audience including developers, SMBs, and large corporations. The service is backed by APILayer, a reputable parent company, and offers tiered subscription plans with clear pricing and features. The website demonstrates a high level of professionalism, with excellent content quality, clear navigation, and mobile optimization. Technically, it employs modern web technologies, including jQuery, Google Analytics, and Stripe for payments, hosted behind Cloudflare DNS. Security posture is strong with HTTPS, SSL encryption, and domain management best practices, although explicit security policies and incident response contacts are not published. Privacy and cookie policies are present and GDPR compliant. Overall, Fixer.io presents a trustworthy and mature digital presence suitable for enterprise and developer use.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
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

4 findings rated critical or high. Fix these first.

  1. 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 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. 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

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

Keep watching fixer.io

This scan found 18 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.

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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

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
75
Security headers
35
Email security
70
DNS health
85
Network security
100
GDPR outside view
73
Average
73

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

Fixer operates in the technology sector, specifically in financial data APIs. Its competitive advantage lies in its extensive currency coverage (170 currencies), trusted data sources like the European Central Bank, and fast, reliable API responses. The business model is subscription-based with multiple pricing tiers catering to different usage volumes. The company targets developers and businesses needing currency data integration. Partnerships and affiliate programs are active, enhancing market reach. The presence of major customers like Microsoft and Samsung indicates strong market validation. The company is medium-sized, founded in 2012, and part of the APILayer group, which provides a broader API marketplace ecosystem.

Security posture

The website enforces HTTPS with bank-grade 256-bit SSL encryption and uses security headers to protect against common web vulnerabilities. Domain registration is privacy protected but managed with appropriate domain status locks. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of a dedicated security policy page, incident response contacts, or vulnerability disclosure program suggests room for improvement in transparency and readiness. The use of third-party scripts like Google Analytics and FirstPromoter is standard but requires ongoing monitoring for security. Overall, the security posture is strong but could benefit from enhanced policy disclosures and incident response mechanisms.

Recommendations

  1. Enable DNSSEC to improve domain security and prevent DNS spoofing.
  2. Publish a dedicated security policy and incident response contact information on the website.
  3. Implement and publicize a vulnerability disclosure program or security.txt file.
  4. Regularly audit and update third-party scripts to mitigate supply chain risks.
  5. Enhance transparency around data retention policies and user privacy practices.

Contact details published on the site

Addresses
Legal name
APILayer
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Fixer
Description
Fixer provides a simple and lightweight API for current and historical foreign exchange (forex) rates, offering real-time exchange rate data for 170 world currencies sourced from trusted financial providers including the European Central Bank.
Key services
Real-time foreign exchange rates, Historical exchange rate data, Currency conversion endpoints, Time-series data endpoints
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Tag Manager, Google Analytics, Stripe, Cloudflare DNS, Font Awesome
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Bank-grade 256-bit SSL encryption
  • No exposed sensitive data in HTML
  • Secure forms with CAPTCHA
  • Domain status includes clientDeleteProhibited etc.

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Reddit Ads
Tracking pixels
FirstPromoter
Marketing tools
FirstPromoter
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Professional API service focused on currency exchange rates.
  3. Clear pricing plans with detailed feature descriptions.
  4. Multiple social media and partner links present.
  5. Strong use of modern web technologies and analytics.
  6. Privacy and cookie policies are present and compliant.
  7. No explicit security policy or incident response info found.
  8. WHOIS data shows privacy protection but domain is aged and consistent.
Technical notes

Notes

The website uses a custom CMS with a modern tech stack including jQuery, Google Tag Manager, Google Analytics, and Stripe for payment processing. Hosting leverages Cloudflare DNS for performance and security benefits. The site is well-optimized for mobile devices and accessibility, with good SEO practices evident in meta tags and structured data. Performance is fast with asynchronous loading of scripts and preconnect hints. The codebase includes embedded CSS and JavaScript for UI components and user interaction. There is no evidence of legacy or vulnerable libraries. Opportunities exist to modernize frameworks and improve security policy automation.
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

Reviews of this site

Share your experience with fixer.io. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review fixer.io.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.