Security Headers
Quickly and easily assess the security of your HTTP response headers.
Some of the top features or benefits of Security Headers are: Enhanced Security, Quick Assessment, Easy to Use, and Free Tool. You can visit the info page to learn more.
Best Security Headers Alternatives & Competitors in 2025
The best Security Headers alternatives based on verified products, community votes, reviews and other factors.
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Open-Source Alternatives.
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/mozilla-observatory-alternativesThe Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
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/qualys-ssl-server-test-alternatives
This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
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Try for freeVerify your customers in under 15 seconds anywhere in the world with a cutting-edge SaaS & API platform for Identity Verification and AML/KYC compliance.
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/hardenize-alternativesHardenize provides a comprehensive and free assessment of web site network and security configuration.
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/scanigma-alternativesScanigma offers a comprehensive solution that includes in-depth analysis, evaluation, and reporting of security settings, specific recommendations, sample configurations, and ongoing monitoring.
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/cryptolyzer-alternativesFast and flexible server cryptographic (TLS/SSL) settings analyzer library for Python 2.7/3.4+ with CLI
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/cipherscan-alternativesCipherscan tests the ordering of the SSL/TLS ciphers on a given target, for all major versions of SSL and TLS.
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/immuniweb-discovery-alternativesImmuniWeb® Discovery leverages OSINT & award-winning AI technology to illuminate attack surface & Dark Web exposure. The non-intrusive and production-safe discovery is perfect for self-assessment & vendor risk scoring to prevent supply chain attacks.
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/cloud-cultivator-alternativesComprehensive SSL/TLS monitoring
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/gtmetrix-alternativesGTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.
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/cryptcheck-alternatives
CryptCheck is a Ruby toolbox that help anybody to check for cryptography security level and best practices compliance.
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/immuniweb-alternativesAI-Enabled Attack Surface Management, Dark Web Monitoring, and Application Penetration Testing solutions tailored to reduce complexity and costs of Application Security Testing, Protection and Compliance.
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/testssl-alternativesTesting TLS/SSL encryption anywhere on any port
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/hcaptcha-alternativesDo you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.
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