Activate a Pro key
Buy a licence on this site, copy the key, and paste it on the License tab. The key pins to the first WordPress site that activates it. Deactivate there before you move it.

Pro · one site per licence
CSP is the header that wins the grade and the one that can break a theme. HeaderGenie starts in report-only, then you enforce when the reports are quiet.
Buy a licence on this site, copy the key, and paste it on the License tab. The key pins to the first WordPress site that activates it. Deactivate there before you move it.

Pro enables CSP in report-only. Visitors are not blocked. You see which scripts, fonts, and embeds would have failed. Add those hosts in the builder instead of writing the header by hand.

Compatibility is tied to what the public pages actually load. Use it after a scan so the policy matches the live site, including CDNs and embeds you did not remember.

When reports look right, turn off report-only. Add COOP, COEP, and CORP on the Headers tab if you want the extra isolation scanners look for. Then scan inside the plugin and on the public tools.





Independent check: SecurityHeaders.com and Mozilla Observatory. Those grades still depend on your host, cache, and CDN as well as HeaderGenie.