Web Security
Generate a comprehensive 0-100 security score based on SSL status, security headers, domain age, and DNS configuration.
A website security score is a composite numerical rating (0-100) that aggregates multiple security indicators into a single, actionable metric. It evaluates SSL/TLS configuration, HTTP security headers, domain maturity, DNS security, and other technical signals to produce an overall assessment of a website's security posture. This tool calculates a security score by analyzing these factors individually, weighting them by security impact, and presenting both the overall score and detailed breakdowns of each component.
For security professionals, a composite score provides a fast triage mechanism. When managing hundreds or thousands of domains, individual header checks become impractical. A security score lets you sort by risk, identify the most vulnerable assets, and prioritize remediation. It also provides a benchmark for tracking improvement over time as security controls are implemented.
For website owners and developers, the score translates technical security concepts into a measurable target. Rather than understanding the intricacies of CSP directives or HSTS preload requirements, a simple score provides a clear goal: improve the score by implementing the recommended controls. Each recommendation includes specific instructions, making the score a roadmap for web hardening.
The security score evaluates four primary categories: SSL/TLS configuration, HTTP security headers, domain characteristics, and DNS security. Each category is weighted by its security impact. SSL/TLS and security headers carry the highest weight because they directly protect against the most common web attacks. Domain age and DNS configuration provide contextual signals about infrastructure maturity and resilience.
Within SSL/TLS, the score evaluates certificate validity, protocol version support (TLS 1.2 and 1.3 preferred), cipher suite strength, and Perfect Forward Secrecy. Expired certificates, deprecated protocols, and weak ciphers significantly reduce the score. The security headers evaluation checks for Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy, scoring both presence and configuration quality.
Domain characteristics include domain age, registration status, and expiration proximity. Newly registered domains score lower because they are statistically more likely to be malicious. Domains approaching expiration risk service disruption and potential hijacking. DNS security evaluates DNSSEC support, record configuration, and the presence of email security policies (SPF, DKIM, DMARC).
The most effective use of security scores is tracking improvement over time. Establish a baseline score, implement recommended controls, and re-measure to verify improvement. This creates a measurable security program where progress is quantifiable and justifiable to stakeholders. Regular scoring (weekly or monthly) ensures that new deployments and configuration changes do not introduce regressions.
When presenting to management or clients, the security score translates technical findings into business-relevant metrics. A score of 40 with specific improvement recommendations is more actionable than a list of 15 individual header findings. The score provides context: a 40 is below average and represents real risk, while an 85 indicates strong security with minor improvements available.
For competitive analysis and due diligence, comparing security scores across similar organizations reveals relative security maturity. This benchmarking helps set realistic improvement targets and identifies industry patterns. If competitors consistently score higher, that signals an area where security investment provides competitive advantage.