StampyCode

<p>This plugin addresses the need for a simple way to add HTTP headers to outbound HTTP responses in your site.</p>
<p>These headers can include custom ones specific to your application, or can be security related. Some you may wish to specify to protect your site may include:</p>
<ul>
<li>Public-Key-Pins</li>
<li>Strict-Transport-Security</li>
<li>X-Frame-Options</li>
<li>X-XSS-Protection</li>
<li>X-Content-Type-Options</li>
<li>Content-Security-Policy</li>
<li>Content-Security-Policy-Report-Only</li>
</ul>
<h3>Related Links</h3>
<ul>
<li><a href="http://www.troyhunt.com/2015/09/introducing-you-to-browser-security.html" rel="nofollow ugc">Troy Hunt – Introducing you to browser security headers on Pluralsight</a></li>
<li><a href="https://app.pluralsight.com/library/courses/browser-security-headers" rel="nofollow ugc">PluralSight.com – Introduction to Browser Security Headers</a></li>
<li><a href="https://www.owasp.org/index.php/List_of_useful_HTTP_headers" rel="nofollow ugc">OWASP – List of useful HTTP headers</a></li>
<li><a href="https://scotthelme.co.uk/hardening-your-http-response-headers/" rel="nofollow ugc">Scott Helme – Hardening your HTTP response headers</a></li>
</ul>


Headit

Headit is a simple plugin to allow you to add custom HTTP response headers to your site.

Dimitar Ivanov

<p>HTTP Headers gives your control over the http headers returned by your blog or website.</p>
<p>Headers supported by HTTP Headers includes:</p>
<ul>
<li>Access-Control-Allow-Origin</li>
<li>Access-Control-Allow-Credentials</li>
<li>Access-Control-Max-Age</li>
<li>Access-Control-Allow-Methods</li>
<li>Access-Control-Allow-Headers</li>
<li>Access-Control-Expose-Headers</li>
<li>Age </li>
<li>Content-Security-Policy</li>
<li>Content-Security-Policy-Report-Only</li>
<li>Cache-Control</li>
<li>Clear-Site-Data</li>
<li>Connection</li>
<li>Content-Encoding</li>
<li>Content-Type</li>
<li>Cross-Origin-Embedder-Policy</li>
<li>Cross-Origin-Opener-Policy</li>
<li>Cross-Origin-Resource-Policy</li>
<li>Expect-CT</li>
<li>Expires</li>
<li>Feature-Policy</li>
<li>NEL</li>
<li>Permissions-Policy</li>
<li>Pragma</li>
<li>P3P</li>
<li>Referrer-Policy</li>
<li>Report-To</li>
<li>Strict-Transport-Security</li>
<li>Timing-Allow-Origin</li>
<li>Vary</li>
<li>WWW-Authenticate</li>
<li>X-Content-Type-Options</li>
<li>X-DNS-Prefetch-Control</li>
<li>X-Download-Options</li>
<li>X-Frame-Options</li>
<li>X-Permitted-Cross-Domain-Policies</li>
<li>X-Powered-By</li>
<li>X-Robots-Tag</li>
<li>X-UA-Compatible</li>
<li>X-XSS-Protection</li>
</ul>


HTTP Headers

Great plugin with a huge amount of settings. Despite the complexity of the setup, the developers have added comments with links to full help. It helps a lot that the comments are also translated into Russian.
After setting up the plugin, be sure to check both the functionality of the site and the speed indicators. Some settings may slow down the site loading speed.

Wonderful

HTTP Headers adds CORS & security HTTP headers to your website.

Headit vs HTTP Headers