Last Updated on August 29, 2026 by Mat Diekhake

Security Overview

Momondo is a global travel‑search platform operating with modern encryption, stable hosting infrastructure, and clean malware/phishing results across independent scanners. Its technical posture aligns with large‑scale travel‑comparison engines, with no major red flags in HTTPS configuration, script behavior, or infrastructure stability.

SSL/TLS & Encryption

  • Momondo enforces HTTPS across its platform.
  • The TLS certificate is valid and issued by a major certificate authority.
  • No mixed‑content warnings were reported in automated scans.
  • Supported cipher suites are modern, with no deprecated or weak configurations flagged.
  • Email infrastructure uses SPF and DMARC, reducing spoofing and phishing risks.

Hosting & Infrastructure

  • Hosting signals indicate EU‑based infrastructure, consistent with Momondo’s Danish origins and integration under KAYAK/Booking Holdings.
  • The site uses modern web technologies including React, JavaScript bundlers, analytics frameworks, and CDN‑style distribution for global performance.
  • Reverse‑proxy and DDoS protection layers are typical of large travel platforms, though specific providers are not publicly disclosed.
  • Domain founded: Momondo.com was registered on September 14, 2005.
  • No uptime instability or infrastructure‑risk warnings were reported.

Malware & Phishing Scan

Independent security engines report:

  • No malware detected
  • No phishing blacklist flags
  • No suspicious redirects
  • No unauthorized third‑party script injections
  • Low‑risk classification from multiple scanning services

There is no indication that Momondo distributes malware or engages in phishing activity.

Privacy & Data Handling

Momondo processes:

  • Account and search data
  • Travel‑query metadata
  • Device and browser information
  • Usage analytics

Tracking includes:

  • First‑party cookies
  • Google Analytics
  • Tag‑management frameworks
  • Standard travel‑industry integrations

Privacy handling is described as GDPR‑aligned, with clear cookie‑consent mechanisms and no excessive data‑collection behaviors identified.

App Permissions (If Applicable)

Momondo’s mobile apps typically request:

  • Notification access
  • Location access for nearby airport suggestions
  • Optional camera access for document uploads
  • File access for ticket storage

These permissions match normal travel‑search and booking functionality and do not appear excessive.

Breach History

  • No publicly confirmed major data breaches involving Momondo customer data.
  • No leaked databases or credential‑stuffing exposures tied directly to Momondo.com.
  • No public disclosures of significant security incidents.

Security Certifications

Publicly available information indicates:

  • GDPR compliance
  • No published SOC 2, ISO 27001, HIPAA, or PCI DSS certifications for Momondo itself
  • Payment processors used by partner booking sites operate under PCI DSS requirements, but Momondo does not list PCI certification for its own platform

Final Safety Verdict

Momondo is technically safe to use. The site uses valid HTTPS encryption, modern hosting infrastructure, and standard privacy controls. Independent scans show no malware, no phishing activity, and no technical indicators of elevated risk. From a purely technical security standpoint, Momondo meets the expectations of a global travel‑search platform.