WordPress Plugin

0Cert for
WordPress

Add identity-based encryption verification to your WordPress site in minutes. Zero certificates. Zero renewals. One plugin.

Download from WordPress.org View source

What it does

The 0Cert WordPress plugin connects your site to the 0Cert Key Generation Center (KGC) and adds identity-based cryptographic verification to every page response.

Visitors using 0 Browser see a green 0Cert Verified badge on your site instead of a standard SSL lock — confirming your site's identity is cryptographically bound to your domain, not just vouched for by a certificate authority.

X-0Cert-* Headers

Added to every page response automatically — no server configuration required.

Verification Endpoint

Serves /.well-known/0cert automatically — 0 Browser checks this to show the verified badge.

KGC Verification

Verifies your domain's keys with the Key Generation Center when you save settings.

Admin Dashboard

Simple settings page showing your 0Cert status, key ID, and setup instructions.

How to install

1
Install and activate the plugin
WordPress Admin → Plugins → Add New → search "0Cert" → Install → Activate
2
Get your keys
Go to app.0cert.io or open the 0 Browser iOS app → My Sites → Add Site → enter your domain → copy the Full Private Key and User Secret shown.
3
Enter your keys in the plugin settings
WordPress Admin → Settings → 0Cert → paste your Full Private Key and User Secret → click Save and Verify.
4
Add a DNS TXT record
In your domain registrar, add:
TXT @ ibc-kgc=https://kgc.0cert.io
5
Done
Your site is now 0Cert protected. Visit it in 0 Browser to see the green verified badge.

No server access required

Unlike manual .htaccess or server-level configuration, this plugin works on any WordPress hosting — shared hosting, managed WordPress, VPS. No command line access needed.

About 0Cert

0Cert is an open-source project exploring Certificateless Public Key Cryptography (CL-PKC) as an alternative to traditional SSL certificate authorities. The full protocol, KGC server, iOS browser, npm middleware, and this WordPress plugin are all MIT licensed and available at github.com/0cert.

Live demo: infodes.ru runs this plugin. Check the response headers or visit infodes.ru/.well-known/0cert to see it in action.