Analyze HTTP Headers
HTTP Headers
HTTP headers provide important information about the request or response, or about the object sent in the message body.
Security Analysis
Our tool analyzes security headers to identify potential vulnerabilities and provide recommendations.
Server Information
Discover information about the web server, including software, version, and configuration details.
Common Questions
"What are HTTP security headers and why do they matter?"
Think of HTTP security headers as your website's security guard - they tell browsers how to handle your content and protect against common attacks. Just like a security system needs proper configuration, these headers need to be set up correctly. They're your first line of defense against various web attacks like XSS, clickjacking, and data injection. Plus, they're becoming increasingly important for SEO and browser compatibility.
"I see a lot of missing headers. Should I be worried?"
Not all headers are essential for every website - it's like home security where not every house needs a guard dog and laser sensors! What matters is having the right headers for your specific needs. That said, some headers like Content-Security-Policy and Strict-Transport-Security are becoming standard practice. Check our recommendations section for guidance on which headers would benefit your site the most.
"My security score is low but my site seems fine. What gives?"
A low security score doesn't mean your site is currently under attack - it's more like a weather forecast showing potential storm clouds ahead. The score reflects how well-protected your site is against potential threats. Many sites function perfectly fine with basic headers, but adding recommended security headers is like upgrading from a simple lock to a comprehensive security system. It's about being proactive rather than reactive.
"How often should I check my HTTP headers?"
Web security is like maintaining a car - regular check-ups help prevent bigger problems down the road. I recommend checking your headers at least quarterly, or whenever you make significant changes to your website. Security best practices evolve constantly, and new headers or header values are introduced to address emerging threats. Plus, some headers like HSTS have expiry times that need monitoring.
"These header values look complicated. How do I implement them?"
Don't let the technical syntax scare you! While header values can look like alphabet soup, implementing them is usually straightforward. Most web servers (Apache, Nginx) and platforms (WordPress, Node.js) have simple ways to add headers. Start with the basic recommended values we provide, test in a staging environment first (some headers like CSP can break functionality if not configured correctly), and gradually tighten security as needed.