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Security report for aircall.io

Aircall · Technology · France

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

77/100

Risk levelLow

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

Aircall is a leading cloud-based business phone system and unified communications platform founded in 2014 in Paris, France, with a significant presence in New York, USA. Serving over 20,000 customers worldwide, Aircall offers AI-powered communication tools including AI Voice Agent and AI Assist Pro, integrated with CRM and helpdesk systems. The company targets SMBs and enterprise clients, positioning itself as a market leader in cloud telephony and call center software with a strong emphasis on AI-driven productivity and omnichannel messaging. Technically, Aircall employs a modern technology stack including React and Next.js, hosted on AWS and Vercel, with a CMS powered by Storyblok. The website is well-optimized for SEO, mobile-friendly, and incorporates advanced analytics and cookie consent mechanisms. Structured data is extensively used to enhance search engine understanding and social media integration. From a security perspective, Aircall demonstrates strong practices with HTTPS enforcement, security headers, and domain transfer protections. However, DNSSEC is not enabled, and no explicit incident response or vulnerability disclosure policies were found. The domain registration details are consistent with the company's public information, indicating legitimacy and trustworthiness. Overall, Aircall presents a professional, secure, and compliant digital presence with comprehensive business information and a strong market position. Strategic recommendations include enabling DNSSEC, publishing incident response contacts, and establishing a vulnerability disclosure policy to further enhance security posture and trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 100 · Low
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

3 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 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';…

  2. 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 aircall.io

This scan found 19 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

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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
72
Security headers
30
Email security
82
DNS health
85
Network security
100
GDPR outside view
95
Average
77

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

Aircall operates in the technology sector, specializing in cloud telephony and unified communications for sales and customer support teams. Its SaaS business model leverages AI to differentiate its offerings, providing real-time call coaching, automated summaries, and conversational AI agents. The company has a broad integration ecosystem with over 200 third-party applications, enhancing its value proposition. Aircall's target customers range from small businesses to large enterprises globally. The company maintains a strong brand presence with active social media channels and customer testimonials. Growth indicators include recognition as a G2 Call Contact Center Leader and a large customer base. Partnerships with CRM and helpdesk providers further strengthen its market position.

Security posture

Aircall's security posture is robust, featuring HTTPS with strong SSL configuration, multiple security headers, and domain transfer lock status. The website includes a cookie consent mechanism aligned with GDPR requirements and a comprehensive privacy policy. No exposed sensitive data or vulnerable libraries were detected. However, the absence of DNSSEC and a public incident response or vulnerability disclosure policy represents areas for improvement. The company should consider publishing security contact information and adopting recognized security frameworks or certifications to enhance trust and compliance. Overall, Aircall demonstrates a mature security culture suitable for its enterprise clientele.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish an incident response page or security contact email to facilitate vulnerability reporting.
  3. Develop and publicize a vulnerability disclosure policy or security.txt file.
  4. Consider obtaining and displaying security certifications such as ISO 27001 or SOC 2.
  5. Maintain and regularly update privacy and cookie policies to ensure ongoing GDPR compliance.

Contact details published on the site

Addresses
Legal name
AIRCALL.IO, INC.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Aircall
Description
Aircall is a leading cloud-based business phone system and unified communications platform, serving over 20,000 customers worldwide with AI-first tools, omnichannel messaging, and deep CRM/helpdesk integrations.
Key services
Cloud-based voice platform, Omnichannel messaging, AI Assist Pro, AI Voice Agent
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Lottie animations, Google Tag Manager, Cookielaw.org cookie consent, Vercel Speed Insights
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Client transfer prohibited domain status
  • Cookie consent mechanism
  • No exposed sensitive data detected
  • Use of Google Tag Manager with data redaction enabled

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Cookielaw.org cookie consent
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured with comprehensive content.
  2. Strong use of structured data (JSON-LD) for SEO and business information.
  3. Multiple language support with hreflang tags for internationalization.
  4. Robust integration ecosystem with 200+ integrations highlighted.
  5. Active social media presence and clear contact information.
  6. Use of modern web technologies and hosting on reputable platforms.
  7. Security best practices observed but DNSSEC not enabled.
  8. No visible security or privacy red flags detected.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, hosted on AWS infrastructure and deployed via Vercel, ensuring scalability and performance. The use of Storyblok CMS allows flexible content management. The site is optimized for SEO with comprehensive meta tags, Open Graph data, and JSON-LD structured data. Performance is enhanced by preloading critical CSS and asynchronous loading of scripts. Mobile optimization and accessibility are well addressed. The integration of Google Tag Manager and cookie consent scripts indicates attention to analytics and privacy compliance. No technical debt or deprecated libraries were identified, suggesting a well-maintained codebase.
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. 78/100Low25 findingsView report
  2. 78/100Low24 findingsView report
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