MagniSec Plugin for Wordpress
Secure HTTP headers - Essential, and easy.

Download plugin here (FREE)

Harden your web applications.

HTTP header fields are components of the header section of request and response messages. The headers define the operating parameters of an HTTP transaction.
Securing HTTP headers will improve the resilience of your web application against many common attacks including those that are on the OWASP top 10 list.
Securing headers can also improve your SEO rank and in addition to preventing websites from being marked as dangerous by browsers and antivirus applications.
Protect sensitive user information and be compliant with privacy regulations. Defend users from stealing private data by protecting website cookies. Use the proper directive such as "secure", "httponly" and "samesite", all of those will be applied automatically by "Secure HTTP Headers" plugin.

Secure HTTP Headers will automatically analyze any website and will build up secure headers directives, by the latest best practice.
In addition, Secure HTTP Headers offers fully configurable options, apply or skip any header directive as needed.

Install and activate Secure HTTP Headers with full confidence, the deactivation of this plugin will return your website header directives to their original state.

Main Plugin Functionality

HTTP Strict Transport Security - helps to protect websites against man-in-the-middle attacks and cookie hijacking

X-Frame-Options - helps to protect users against ClickJacking attacks

X-Content-Type-Options - helps to prevent the browser from MIME-sniffing

Referrer-Policy - helps to control how much referrer information should be included with requests

Clear-Site-Data - helps to ensure that data is deleted from the browser if the user logs out

X-Download-Options - helps to control how IE 8 will handle downloaded HTML files

Access-Control-Allow-Origin - helps to ensure whether the response can be shared with requesting code from the given origin

Cross-Origin-Embedder-Policy - helps to prevent a document from loading any cross-origin resources that don't explicitly grant the document permission

Permissions-Policy - helps to allow and deny the use of browser features in its own frame, and in content within any <iframe> elements in the document

Cross-Origin-Opener-Policy - helps to protect websites against a set of cross-origin attacks dubbed XS-Leaks

Cross-Origin-Resource-Policy - helps to protect websites against speculative side-channel attacks, like Spectre, as well as Cross-Site Script Inclusion attacks

X-Permitted-Cross-Domain-Policies - helps to control how cross-domain requests from Flash and PDF documents are handled

Cookie Http-Only flag - helps to protect websites against Cross-Site Scripting, or XSS attacks

Cookie Secure flag - helps to ensure that cookie is sent over a secure connection

Cookie Samesite Lax flag - helps to protect websites against CSRF and XSSI attacks

Expect-CT - helps to prevent the use of misissued certificates for a website. Note: The Expect-CT will likely become obsolete in June 2021


Upload plugin files to your plugins folder, or install using WordPress built-in Add New Plugin installer


Activate the plugin


Choose a custom configuration or select recommended one.

Frequently Asked Questions

What will happen if I deactivate Secure HTTP Headers?

Your initial configuration will restore with no change.


What are the optional extras?

Magnisec is offering "Secure HTTP Headers enhanced"
A plugin that contains, in addition, an engine that watches and builds in any website changes a CSP - Content Security Policy that is best practice and recommended by all professional securities experts, that mitigate XSS -Cross site Scripting, one of the most common and destructive attacks.
Price: 50$ /year for a domain.
More details and installation here


1. In the left sidebar menu, navigate to Settings > Secure HTTP Headers and choose your website's server

2. Click the button "Recommended configuration" or choose your custom configuration

3. If your server is NGINX, follow directions for securing your website

Download plugin here (FREE)
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