Essential Headers
Put the HTTP security headers WordPress leaves out—on every response.
One plugin. Clear settings. Browsers get CSP, HSTS, frame protection, and the rest—so your site stops shipping soft defaults.
Hardens responses with the headers security scanners look for.
Browser enforced
Six protections on every response
Without it
Default WordPress leaves the response soft
HTTP security headers tell the browser how to behave. Skip them and you rely on hope—while audit tools, insurers, and attackers all notice the gap.
Missing by default
A fresh WordPress install rarely sends CSP, HSTS, frame guards, or referrer rules. Scanners flag it. Browsers get no instructions.
Easy to embed
Without X-Frame-Options or frame-ancestors, attackers can wrap your login or checkout in an iframe and trick clicks.
Guessed content types
MIME sniffing lets a browser treat an uploaded file as a script. One nosniff header closes that door.
What it fixes
From open response to instructed browser
Essential Headers attaches the missing instructions so modern browsers enforce the protections your theme and plugins never send.
Before
Pages can be framed
After · X-Frame-Options
SAMEORIGIN / DENY blocks hostile embeds
Before
HTTP stickiness is optional
After · Strict-Transport-Security
HSTS keeps return visits on HTTPS
Before
Scripts load from anywhere
After · Content-Security-Policy
CSP narrows what can execute
Before
Browsers sniff MIME types
After · X-Content-Type-Options
nosniff stops type confusion
What it does
Instruct the browser on every response
Essential Headers adds the HTTP security headers WordPress should send—so protection is not left to chance or buried in server config.
The headers that matter
CSP, HSTS, frame options, nosniff, referrer policy, and permissions policy—configured once, sent on every front-end response.
WordPress-native settings
Clear toggles and values in wp-admin. No server config files, no .htaccess archaeology, no guessing header syntax.
Safe defaults, editable values
Ship with sensible starting values, then tighten CSP or HSTS when you are ready—without rewriting plugin code.
Works with your stack
Complements caching, CDN, and security plugins by filling the response-header gap they often leave alone.
Scanner-friendly
Addresses the exact checks tools like securityheaders.com and Mozilla Observatory look for on WordPress sites.
Focused by design
One job: essential HTTP headers. No firewall suite, no bloat, no dashboard you will never open again.
Headers covered
Content-Security-Policy
Stops unexpected scripts and resource loads from running.
Strict-Transport-Security
Forces browsers to stay on HTTPS after the first visit.
X-Frame-Options
Blocks your pages from being embedded in hostile iframes.
X-Content-Type-Options
Prevents browsers from guessing file types incorrectly.
Referrer-Policy
Controls how much URL data leaves with outbound clicks.
Permissions-Policy
Limits camera, mic, geolocation, and other browser APIs.
How it works
Three steps to a harder response
Install, configure, confirm. No rewrite rules. No DevOps side quest.
01
Install & activate
Add Essential Headers from your plugins screen and turn it on. No server shell required.
02
Choose your headers
Enable the protections you need. Start with defaults, then tighten CSP or HSTS when ready.
03
Verify the response
Reload any page, inspect headers, or run a scanner—you should see the protections land on every response.
Get started
Harden your WordPress responses today
Install Essential Headers, flip on the protections you need, and give every visitor a response the browser can actually enforce.