trustsig

TrustSig Security protects WordPress forms and API endpoints from scripted bots and brute-force attacks. No puzzles. No “I am not a robot” checkboxes. No third-party signup required to start. Coverage depends on the protection mode you choose — see “Protection modes” below.
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<h4>Why TrustSig</h4>
<ul>
<li>Protects every important form out of the box — login, registration, comments, password reset, WooCommerce checkout, BuddyPress signup, Easy Digital Downloads, Elementor Pro forms, WPForms (including the Mesmerize / Materialis contact form), Contact Form 7, SureForms, and any custom form via shortcode.</li>
<li>Stops brute-force login attempts with built-in lockout after repeated failures.</li>
<li>Invisible to humans — real visitors are verified in under a second by a non-interactive browser check. No CAPTCHA, no images to click.</li>
<li>Three protection modes — Monitor (log only), Challenge (default, soft block with auto-retry), Enforce (hard block).</li>
<li>Zero configuration — activate the plugin and protection is live immediately. Anonymous free tier needs no account.</li>
<li>Works with caching plugins, WPML, multisite and most themes — forms are signed server-side with a per-site secret.</li>
<li>Developer-friendly — PHP helper <code>trustsig_verify()</code>, REST endpoint <code>/wp-json/trustsig/v1/verify</code>, filters and actions for custom forms.</li>
<li>Optional admin-ajax and REST API guard for advanced sites.</li>
<li>GPLv2 — fully open source.</li>
</ul>
<h4>How it works</h4>
TrustSig injects a lightweight browser SDK, signs every rendered form with a per-site secret, and verifies submissions against the TrustSig Edge service. Real visitors pass an invisible check in about a second; scripted clients that never run JavaScript are stopped.
When a request arrives without a valid token, TrustSig does not silently fail 
open. Depending on the mode you choose it serves a lightweight “please wait” 
interstitial that re-verifies the browser and then transparently continues the 
original request — or blocks it.
The plugin works out of the box with no account and no API keys (anonymous 
free tier). Connecting a TrustSig dashboard account is optional and only adds 
analytics and higher limits.
<h4>Protection modes</h4>
<ul>
<li>Monitor — verify and log only, never block. Used for safe rollout; the 
upgrade path also pins existing sites here so behaviour never changes 
silently on update.</li>
<li>Challenge (default for new installs) — a missing or invalid token shows 
the interstitial, then continues or blocks.</li>
<li>Enforce — a missing or invalid token is blocked immediately.</li>
</ul>
<h4>What it protects</h4>
Browser forms are protected automatically with no code:
<ul>
<li>WordPress core — login, registration, comments, lost/reset password</li>
<li>WooCommerce — login, registration, checkout, pay order, lost password</li>
<li>BuddyPress — registration</li>
<li>Easy Digital Downloads — login, registration</li>
<li>Elementor Pro forms</li>
<li>WPForms — contact and other forms, on by default (covers the Mesmerize / Materialis contact section)</li>
<li>Contact Form 7 — feedback submissions, on by default (guarded on the REST endpoint CF7 submits to)</li>
<li>SureForms — form submissions, on by default (guarded on the REST submit-form endpoint)</li>
<li>Any other form (site-wide “protect all forms” option, the <code>[trustsig_form]</code> 
shortcode, or a hidden <code>trustsig-response</code> input)</li>
</ul>
It also includes optional brute-force lockout for repeated failed logins, an 
opt-in admin-ajax / REST API guard, and a developer verification API.
<h4>For developers</h4>
<ul>
<li>PHP: <code>trustsig_verify( array( 'token' => $t, 'action' => 'my_form' ) )</code> 
returns <code>pass</code> | <code>fail</code> | <code>challenge</code>. Filters: <code>trustsig_pre_verify</code>, 
 trustsig_result. Action: <code>trustsig_blocked</code>.</li>
<li>REST: <code>POST /wp-json/trustsig/v1/verify</code> with <code>{ "token": "..." }</code>.</li>
</ul>
<h4>Known limitations</h4>
<ul>
<li>XML-RPC (<code>xmlrpc.php</code>) is intentionally out of scope and is not verified. 
Disable XML-RPC separately if it is unused on your site.</li>
<li>admin-ajax and the REST API are only protected when explicitly enabled in 
Settings, to avoid breaking third-party integrations.</li>
<li>File-upload and AJAX submissions cannot show the interstitial; under 
Challenge or Enforce mode a missing token on those is blocked, never 
silently allowed.</li>
</ul>
<h3>External services</h3>
This plugin relies on the TrustSig Edge service to decide whether a request 
comes from a human or an automated client. This bot-detection verdict cannot be 
produced locally, so the service is required for the plugin’s core 
functionality.
Service provider: TrustSig — https://trustsig.eu
Remote script loaded in the browser: 
 https://edge.trustsig.eu/trustsig.js is loaded on pages that contain a 
protected form, on the login screen, and on the verification interstitial. The 
script runs the non-interactive browser check and produces a verification 
token.
Data sent from the visitor’s browser / your server to 
 https://edge.trustsig.eu/verify:
<ul>
<li>the TrustSig verification token generated by the SDK in the visitor’s browser;</li>
<li>your site’s host name (e.g. <code>example.com</code>) on the anonymous free tier, or, if 
you connect a dashboard account, the secret key you entered;</li>
<li>as part of any HTTPS request, the visitor’s IP address and standard request 
metadata (such as the user-agent) are visible to the service.</li>
</ul>
When data is sent: when the SDK loads on a protected page, when a protected 
form is submitted, and once per browser when the optional verified-session 
cookie is bootstrapped.
Data stored locally on your site: TrustSig writes a verification log to 
your own WordPress database (custom tables) that includes visitor IP addresses, 
the action attempted, and the verdict. This data is not sent to TrustSig; you 
can clear it at any time from Settings → TrustSig → Tools.
By installing and activating this plugin you (the site administrator) consent to 
this data being sent to TrustSig so that requests can be verified. Inform your 
own site’s visitors as required by your local privacy obligations.
<ul>
<li>Terms of Service: https://trustsig.eu/terms-of-service/</li>
<li>Privacy Policy: https://trustsig.eu/privacy</li>
</ul>

TrustSig Security


Deployment was easy, I am not tech savy but was able to get it running in less than a minute. I always had constant email spam from my site, after installing TrustSig it dropped to zero. 10/10


Easy setup and spam stopped

Stop bots, spam and brute-force attacks on every WordPress form. No CAPTCHA. No account. No keys. Installs and protects in one click.

5 Star Plugins (Rob)

Cloud Maestro brings centralized Cloudflare Web Application Firewall (WAF) controls directly into WordPress.
Why would I use a plugin when I can create rules in Cloudflare? 
If you manage multiple Cloudflare-connected sites, Cloud Maestro is a productivity tool that helps oversee several domains from a central dashboard using WordPress. If you only manage one domain in Cloudflare, you wouldn’t benefit from this plugin.
It’s useful for someone managing: 
– Their own sites and client sites 
– Multiple businesses 
– Separate Cloudflare accounts
People like using Cloud Maestro because configuring security rules one domain at a time is inefficient and error-prone. It allows you to configure WAF rules once and deploy them consistently across all domains in your Cloudflare account — instantly.
The free version supports one Cloudflare account with multiple domains.
An optional premium version is available for managing unlimited domains across multiple Cloudflare accounts at once.
<h3>🛡️ Why Use Cloud Maestro – WAF Security Suite for Cloudflare?</h3>
Managing security rules across multiple Cloudflare domains is tedious and time-consuming. This plugin streamlines the process, allowing you to:
<ul>
<li>Deploy in One Click – Apply comprehensive WAF rules to multiple domains simultaneously</li>
<li>Save Time – No more manually configuring rules on each domain, one at a time</li>
<li>Enterprise Security – Protect against bots, aggressive crawlers, malicious IPs, and common threats</li>
<li>Reduce Mistakes – Maintain consistent security rules across domains</li>
</ul>
<h3>✅ Free Standard Features</h3>
<ul>
<li>One Cloudflare account</li>
<li>Multiple domains</li>
<li>One-click WAF rule deployment</li>
<li>Centralized Cloudflare controls</li>
<li>Secure API credential storage (AES-256-CBC encryption)</li>
<li>Plugin updates 
The free plugin does not require an upgrade.</li>
</ul>
<h3>🔥 What Gets Protected</h3>
The plugin deploys 3 optimized trusted security rules (prior versions used 5) that work together to protect your sites:
<ul>
<li>Good Bot Allowlist – Ensures legitimate bots (Google, Bing, monitoring tools) can access your site</li>
<li>Managed Challenges for Suspicious Traffic – Automatically challenges requests from certain ASNs and non-US traffic</li>
<li>Aggressive Crawler Protection – Blocks unauthorized crawlers and bots (Yandex, Semrush, Ahrefs, etc.)</li>
<li>VPN & Login Protection – Adds extra challenges for VPN traffic and WordPress login attempts</li>
<li>Block Known Threats – Automatically blocks web hosts, malicious IPs, TOR nodes, and attack vectors</li>
</ul>
<h3>✨ Premium Upgrade (Optional)</h3>
For agencies and professionals managing multiple Cloudflare accounts, a Premium version is available with expanded functionality and tech support. <a href="https://5starplugins.com/cloud-maestro-cloudflare-waf-rules/" rel="nofollow ugc">Check out our free trial</a> for these features:
<ul>
<li>Multi-Account Management – Automatically manage domains across ALL your Cloudflare accounts</li>
<li>Easy Bot Whitelisting – Built-in checkboxes for 50+ trusted services across 8 categories</li>
<li>Custom User Agents – Add your own user agent strings to the Good Bot Rule</li>
<li>Custom IP Whitelisting – Add trusted IP addresses to the Goot Bot Rule</li>
<li>IP Rules management – View and edit Cloudflare’s IP Rules that block or allow access even before hitting WAF rules (and we are working on connecting to fail2ban and Wordfence blocks)</li>
<li>Bulk DNS Manager – Search and manage DNS records across all domains, bulk migrate IP addresses, CNAME targets, and convert A records to CNAME with a single action</li>
<li>Priority Support – Get expert help when you need it</li>
<li>Advanced Customization – Fine-tune rules to match your exact requirements</li>
<li>Multi-Account Management – Centrally manage unlimited domains across all your Cloudflare accounts</li>
</ul>
<h3>📋 Important Information</h3>
Rule Replacement: This plugin replaces existing custom WAF rules on targeted domains. Make sure to back up any custom rules you want to keep.
Compatibility: Works with Cloudflare Free, Pro, and Business plans. Not compatible with Enterprise plans managed by hosting providers.
Service Monitoring: These rules might challenge some monitoring or uptime services. Check Cloudflare’s Events log if services stop connecting, and add exceptions as needed.

Cloud Maestro – WAF Security Suite for Cloudflare


The idea of this plugin is simple but quite effective. Having a comprehensive set of rules and a centralized WAF strategy helps a lot in mitigating server attacks while hosting many sites. And all still enjoying CF Free.


CF WAF in Bulk for free

Bulk deploy powerful WAF security rules to multiple Cloudflare domains with one click. Protect your sites from bots, malicious traffic, and threats.

TrustSig Security vs Cloud Maestro – WAF Security Suite for Cloudflare