Http Security Headers Analyzer
Fast, accurate and free online http security headers analyzer tool running directly in your browser.
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HTTP Security Headers Analyzer
This tool fetches HTTP(S) headers for the selected URL and assesses its security configuration: HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, and related headers. The result is informational and heuristic - use it to audit your own services or systems where you have formal permission.
Analysis scope
Based on the fetched headers, no obvious gaps in standard security headers were detected. Remember that this is a quick heuristic test and does not replace a full audit.
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Other tools you may find usefulHTTP Security Headers Analyzer - check your website's security headers in seconds
HTTP Security Headers Analyzer is an easy-to-use online tool that checks your website's HTTP security headers, analyzes their configuration and helps you quickly find out whether basic browser security is set correctly or if something is missing or needs tweaking.
What are HTTP security headers and why you should check them regularly
HTTP security headers are short instructions that the server sends together with the response to the user's browser, and on this basis the browser knows how to treat a given page, whether it should force an encrypted connection, how to handle cookies, whether it is allowed to embed the page in frames and which script or multimedia sources to consider as trusted.
In practice, this means that well-set security headers can reduce the risk of many common problems such as clickjacking, unintentional disclosure of referer headers, attempts to interpret the wrong file types, and uncontrolled script embedding, while poorly set or missing headers leave these areas without additional protection.
- HSTS (Strict-Transport-Security) helps the browser remember that your website should only be opened over HTTPS.
- Content-Security-Policy allows you to define from which domains scripts, styles, graphics and other resources can come.
- X-Frame-Options protects against embedding the page in frames on other websites, which reduces the risk of clickjacking.
- X-Content-Type-Options helps prevent files from being misinterpreted on the browser side.
- Referrer-Policy controls what information about the referrer is passed on to other websites.
- Permissions-Policy (or the older Feature-Policy) allows you to define which browser features (camera, microphone, geolocation) are available on the website.
How does HTTP Security Headers Analyzer work step by step
The tool has been prepared so that almost any website administrator, website owner, marketer or person responsible for compliance with security requirements can analyze HTTP security headers, without the need to use the command line or complex scripts.
1. You enter the website URL
In the address field, you enter the domain or full URL of the website you want to analyze, for examplehttps://yourdomain.plor a specific subpage if you want to check the headers returned by a specific part of the application. The tool will automatically ensure the correct address preparation so that the analysis runs as smoothly as possible.
2. You set a response timeout
If your site tends to be slow or behind mechanisms that may introduce delays, you can adjust the connection timeout. This prevents HTTP Security Headers Analyzer from waiting forever, and you have control over how long the scanner tries to retrieve headers from the target server.
3. Select the checking scope
The tool allows you to select which groups of headings should be taken into account during analysis. You can check only HSTS, focus on Content-Security-Policy, enable classic security headers or add Permissions-Policy to the mix, or in most cases it's best to just leave all the switches on and do the full analysis.
4. You run the analysis and immediately see the report
Once you click the launch button, the tool connects to your site, collects the appropriate headers, saves the response code, final redirection address, and server IP address, and presents it in an easy-to-read format, including a summary, issue list, and detailed tables for each header category.
What security headers does HTTP Security Headers Analyzer analyze?
To make the analysis result practical, the tool groups the headings into thematic blocks that correspond to the most common areas of security configuration, so you don't have to know all the technical details to figure out which elements are highly configured and where it would be useful to talk to the technical team.
HSTS and HTTPS enforcement
The HSTS module checks whether the server is sending the headerStrict-Transport-Securityand what its configuration looks like. A well-set HSTS helps the browser remember that your domain should only be visited via an encrypted connection, which reduces the risk of accidentally breaking communication to plain HTTP due to, for example, old links, bookmarks or incorrect redirections.
Content-Security-Policy
As part of CSP analysis, the tool checks whether there is a header in the responseContent-Security-Policyand if so, it immediately presents its value. Thanks to this, you will quickly see whether the policy has been implemented or is still in the planning phase, and if it exists, whether it looks broad and allows for many sources, or, on the contrary, is rather restrictive and precise.
Classic security headers
HTTP Security Headers Analyzer also goes through so-called classic security headers such asX-Frame-Options, X-Content-Type-OptionsWhetherReferrer-Policy. If any are missing, the tool will indicate this in the report, adding a brief explanation of what this header helps protect against and why you should discuss it with the person responsible for configuring the server.
Permissions-Policy and Feature-Policy
The last group concerns more modern headers likePermissions-Policyand possiblyFeature-Policy. They allow you to determine what browser functions are available on the website and for which sources, which is especially important in complex web applications that use a camera, microphone, geolocation or other advanced browser APIs.
How to read a security headers analysis report
The HTTP Security Headers Analyzer report has been prepared in a way that combines a clear summary with the ability to go into detail, so at the top you will see a short section with information about the input address, destination address after redirection, response status and recognized connection pattern, and below it a list of detected problems and sections with a detailed header table.
| Header status | What does it mean in practice | How to react on the team's side |
|---|---|---|
| OK | The header appears and appears to be set sensibly, in accordance with the typical use for a given security policy. | Usually does not require immediate changes, it is only worth making sure that the configuration is consistent with the current organizational policy. |
| warning | The header is present, but its value may be too liberal or non-standard and therefore not fully protective. | Pass the result to technical people to assess whether the policies can be safely tightened or adjusted to current requirements. |
| missing | The header does not appear in the server response at all, which means that the protection scope does not use an additional layer of security. | This is a good time to plan the implementation of a given header during the next changes to the server or application configuration. |
Who is HTTP Security Headers Analyzer for
Although the concept of security headers sounds technical, the tool is also friendly to non-technical people who want to have a simple indicator of the security status of a web application at hand, which is why HTTP Security Headers Analyzer is eagerly used by both administrators, product owners, marketing and people responsible for compliance.
Site administrators and owners
A quick view of how a site communicates with the browser for security, without having to manually parse headers in developer tools.
Development and DevOps teams
A convenient way to verify that all key security headers are still present and set correctly after deploying a new version of an application to a server or cloud.
Security specialists
A tool that complements standard tests and reports, allowing you to quickly show the client or product teams a simple, understandable result in the form of a list of headers with the level of significance.
Common scenarios in which you might want to run header analysis
- After migrating a site to a new server or cloud.
- After enabling HTTPS on the domain and changing the TLS certificate.
- After implementing a new CDN or Web Application Firewall system.
- Before security audit or customer compliance testing.
- After major refactorings of the backend application or changes to the reverse proxy configuration.
- Periodically, for example once a month or quarterly, as part of an ongoing safety review.
HTTP Security Headers Analyzer FAQ
Does the tool change anything on my server
No, HTTP Security Headers Analyzer only sends a standard HTTP request to your site and reads the responses, which are publicly available to browsers anyway. The tool does not log into the panels, does not modify the server configuration or any application settings, it only serves as an observer.
Do I need to know all the headings for the result to make sense
You don't need to know the details of all the headings because the tool adds a short description and severity level to each entry. In practice, all you need to do is pay attention to items marked as missing or warning and pass them to the person responsible for security or server configuration, who will decide what changes to implement.
Does HTTP header analysis affect website speed
Just running the tool generates a single HTTP request, similar to a website visit by an ordinary user, so the impact on performance is practically imperceptible. The scan doesn't run continuously in the background, only on demand, so you can safely run it when you need quick configuration information.
How often should I check security headers
It's a good habit to run HTTP Security Headers Analyzer after any major change to your infrastructure, HTTPS configuration, or application deployments. In stable environments, many people decide to perform periodic inspections, for example once a month or during standard service windows.
What to do if your report shows key headers are missing
If you see missing or warning statuses for HSTS, CSP, or classic headers, take this as an indication that you should plan to update your configuration. The report will provide a concise explanation of which protection area a given header applies to, and the technical team will be able to prepare appropriate changes and tests on this basis.
Check your website's HTTP security headers with one click
Enter the URL, select the scope of analysis and run HTTP Security Headers Analyzer to quickly see what security headers your server sends, what is missing and where you should strengthen your configuration before a random person testing random domains does it for you.