Security headers summary for nel.goog
This page validates the HTTP security headers returned by nel.goog, scoring its protection against common web attacks.
Below you can review which headers nel.goog sends, which are missing, and recommendations to harden the configuration.
What are HTTP security headers?
HTTP security headers are response headers that instruct the browser to apply protective policies, mitigating attacks such as XSS, clickjacking and content sniffing.
Key headers include Content-Security-Policy (CSP), Strict-Transport-Security (HSTS), X-Frame-Options, X-Content-Type-Options and Referrer-Policy.
How to interpret the headers of nel.goog
A higher score means nel.goog sends more of the recommended security headers with secure values. Missing headers are highlighted so you know what to add.
Focus first on CSP and HSTS for nel.goog, as they provide the strongest protection against scripting and downgrade attacks.
Use cases
- Audit the security headers of nel.goog before or after a deploy.
- Identify missing headers that increase attack risk on nel.goog.
- Verify that nel.goog enforces HTTPS with HSTS.
- Support hardening reports and security reviews for nel.goog.
Frequently asked questions
Which security headers does nel.goog use?
This page lists the HTTP security headers present on nel.goog, such as CSP, HSTS, X-Frame-Options and X-Content-Type-Options, along with their values.
Does nel.goog have a Content-Security-Policy?
The results show whether nel.goog sends a Content-Security-Policy header and whether its value is considered secure.
Does nel.goog enforce HTTPS with HSTS?
The Strict-Transport-Security section indicates whether nel.goog forces HTTPS and for how long, including includeSubDomains and preload flags.
Why does nel.goog have a low security score?
A low score means nel.goog is missing important headers or sends insecure values. The missing-headers and recommendations sections explain how to improve it.
Is the security headers check for nel.goog free?
Yes. The XploreNetHub Security Headers Validator is completely free, requires no sign-up and runs directly in your browser.
Related guides
- Security Headers Checklist — HSTS, CSP and HTTP headers before go-live.
- DNS and SSL Checklist — Steps and verification table before pointing a domain.