Thijs Joosten Digital Acquisition

S2S Conversions sends purchase and lead events directly from your server to Google Analytics 4 via the Measurement Protocol — bypassing ad blockers, browser restrictions, and cookie limitations.
Unlike client-side tracking via Google Tag Manager, server-side events are never blocked and always arrive — even when a visitor uses an ad blocker, Safari ITP, or closes the browser before the thank-you page loads.
<h4>Key Features</h4>
<ul>
<li>GA4 purchase tracking — sends complete purchase data including items, revenue, tax and shipping</li>
<li>GA4 lead tracking — tracks form submissions as generate_lead events</li>
<li>Session ID tracking — correctly attributes conversions to the right channel (Google Ads, Meta, Organic) instead of Unassigned/Direct</li>
<li>Form integrations — supports Contact Form 7, WPForms, Gravity Forms, and Elementor Pro Forms</li>
<li>10 cookie consent tools — works with Cookiebot, Complianz, OneTrust, Real Cookie Banner, Borlabs, iubenda, Moove GDPR, CookieScript, WP Cookie Notice, and a custom banner</li>
<li>Adblocker-proof — events are sent server-side, never blocked</li>
<li>GDPR-ready — GA4 events contain no personally identifiable information; consent is respected before sending any data</li>
<li>Debug log viewer — built-in log viewer in the settings page for easy troubleshooting</li>
<li>WooCommerce HPOS compatible — fully supports High Performance Order Storage</li>
</ul>
<h4>How It Works</h4>
<ol>
<li>When a customer completes a checkout, the plugin captures the GA4 session data (client_id, session_id) before the payment redirect</li>
<li>After payment, the plugin sends the purchase event server-side via the GA4 Measurement Protocol</li>
<li>Because the session data was captured before the redirect, the conversion is correctly attributed to the original traffic source</li>
</ol>
<h4>Upgrade to TJDA Pulse</h4>
The free version tracks GA4 only. Upgrade to TJDA Pulse at <a href="https://pulse.tj-da.com" rel="nofollow ugc">pulse.tj-da.com</a> for:
<ul>
<li>Google Ads — server-side click conversion upload + enhanced conversions</li>
<li>Meta CAPI — Facebook/Instagram Conversions API with email and phone hashing</li>
<li>LinkedIn CAPI — LinkedIn Conversions API</li>
<li>Data Manager API — dual-write to Google’s Data Manager API</li>
<li>Lead conversion slots — map specific forms to specific Google Ads conversion actions</li>
<li>License management — secure per-domain licensing</li>
</ul>
<h4>Supported Consent Tools</h4>
<ul>
<li>Cookiebot</li>
<li>Complianz</li>
<li>OneTrust</li>
<li>Real Cookie Banner v3</li>
<li>Borlabs Cookie</li>
<li>iubenda</li>
<li>Moove GDPR</li>
<li>CookieScript</li>
<li>WP Cookie Notice</li>
<li>Custom banner (cookieConsent cookie)</li>
</ul>
<h4>External Services</h4>
This plugin sends data to the following external services:
<ul>
<li>Google Analytics (analytics.google.com) — to send purchase and lead events via the Measurement Protocol. <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a></li>
<li>s2s-plugin.tj-da.com — to verify DPA (Data Processing Agreement) acceptance. No personal data is sent; only a domain verification request is made. <a href="https://s2s-plugin.tj-da.com/privacy.php" rel="nofollow ugc">Privacy Policy</a></li>
</ul>
<h3>Additional Information</h3>
S2S Conversions was built out of frustration with the growing gap between what web analytics reports and what actually happens. Ad blockers, iOS tracking prevention, and payment redirects cause a significant portion of conversions to go unrecorded — meaning marketers make decisions based on incomplete data.
The solution is straightforward: send conversion events from the server instead of the browser. The server always fires. It doesn’t get blocked. It doesn’t lose session data during a payment redirect. And because it captures the GA4 session ID before any redirect happens, conversions are attributed to the right channel — Google Ads, Meta, Organic — instead of showing up as Unassigned or Direct.
This free version focuses entirely on GA4 and handles the most common scenarios: WooCommerce purchases and form submissions. It works alongside your existing Google Tag Manager setup, not instead of it.
If you need server-side tracking for Google Ads, Meta CAPI or LinkedIn CAPI, TJDA Pulse at <a href="https://pulse.tj-da.com" rel="nofollow ugc">pulse.tj-da.com</a> covers those platforms with the same approach.
Built by <a href="https://tj-da.com" rel="nofollow ugc">Thijs Joosten Digital Acquisition</a> — a digital marketing specialist focused on measurement, attribution and conversion optimisation.

S2S Conversions

Server-side GA4 tracking via the Measurement Protocol. Adblocker-proof, GDPR-ready, and free forever.

Buildio

Ad blockers, iOS privacy changes and cookie restrictions mean your browser-based tracking pixel is only reporting a fraction of your actual conversions. Your ads cannot optimise on data they never receive.
UniPixel fixes this by sending conversion events directly from your WordPress server to Meta, Pinterest, TikTok, Google and Microsoft — bypassing the browser entirely. No external cloud hosting, no GTM server container. Install, paste your credentials, and server-side tracking is live.
<h3>What It Does</h3>
<ul>
<li>Meta Conversion API (CAPI) — server-side and client-side event sending with full deduplication.</li>
<li>Pinterest Conversions API — server-side and client-side tracking with full deduplication.</li>
<li>TikTok Events API — server-side and client-side tracking with automatic deduplication.</li>
<li>GA4 Measurement Protocol — server-side event delivery to Google Analytics and Google Ads.</li>
<li>Microsoft UET & Conversions API — client-side tracking via UET with early support for Microsoft’s Conversions API (CAPI) pilot program. WooCommerce events and custom events supported.</li>
<li>WooCommerce events — ViewContent, AddToCart, InitiateCheckout and Purchase tracked automatically with full product data (names, categories, variants, values).</li>
<li>Custom events — create your own click, view and interaction events for any WordPress page. Not limited to WooCommerce.</li>
<li>Automatic deduplication — each event gets a unique ID shared between client and server, so platforms count it once.</li>
<li>Built-in consent management — fully featured popup with built-in translations for 18 languages, editable wording per language, 5 layout styles (centred card / top or bottom bar / corner card), optional non-blocking mode, and a Reject all button toggle. Or skip the popup entirely and let UniPixel read consent from your existing CMP — supports OneTrust, Cookiebot, Osano, Silktide, Orest Bida, Complianz, CookieYes, Moove GDPR, and CookieAdmin (Softaculous).</li>
<li>Live event testing — real-time console shows events as they fire, with full payload data.</li>
<li>Event logging — optional database storage of every event sent, for debugging and audit.</li>
</ul>
<h3>Why Server-Side Tracking Matters</h3>
Around 43% of internet users run ad blockers. Safari limits cookies to 7 days. iOS App Tracking Transparency reduced reported conversions by 30-40% for many advertisers. When your tracking relies only on a browser pixel, these restrictions silently discard your conversion data.
Server-side tracking sends conversion data directly from your server to the ad platform API. Ad blockers cannot touch it. Cookie limits do not apply. The result: your ad platforms see your real conversions, optimise better, and your ad spend works harder.
<h3>Why UniPixel</h3>
UniPixel sends API calls directly from your own WordPress server. No GTM server container, no external cloud, no routing your data through third-party services.
<ul>
<li>Meta, Pinterest, TikTok, Google and Microsoft — server-side and client-side tracking for all five platforms.</li>
<li>No GTM required — no server container setup, no custom subdomain, no separate hosting.</li>
<li>No external cloud — your data goes from your server to the ad platform. Nothing in between.</li>
<li>Works on any WordPress site — WooCommerce stores get automatic ecommerce event tracking. Non-WooCommerce sites use custom events for lead gen, SaaS, content or anything else.</li>
<li>Five-minute setup — install, enter your Pixel ID and access token, enable the platform. Done.</li>
</ul>
Optional <a href="https://unipixelhq.com/unipixel-docs/advanced-matching-setting-with-unipixel/" rel="nofollow ugc">Advanced Matching</a> sends hashed user data (email, phone, address) alongside events to help platforms improve Event Match Quality.
<h3>Tips</h3>
<h4>Deduplication</h4>
UniPixel automatically prevents duplicate counting when both client-side and server-side events are enabled.
Each event is assigned a unique event_id when triggered. This same ID is sent to both the browser pixel and the server API, allowing platforms to merge identical events.
<ul>
<li>Meta (Facebook / Instagram) — uses <code>event_id</code> to match Pixel and Conversion API events so they count once.</li>
<li>Pinterest — uses <code>event_id</code> to match Tag and Conversions API events for full deduplication.</li>
<li>TikTok — uses shared event IDs across Pixel and Events API for seamless deduplication.</li>
<li>Google (GA4 / Ads) — uses shared <code>client_id</code> and <code>session_id</code> values for client/server matching. Works automatically for both client-first and server-first setups.</li>
<li>Microsoft (Bing / UET) — uses <code>eventId</code> to match UET tag and Conversions API events for deduplication.</li>
</ul>
No extra setup is required — UniPixel handles ID creation and matching automatically.
<h3>Privacy and 3rd Party Services</h3>
This plugin sends event data to external services for analytics and advertising purposes. Data is only sent to platforms you have enabled in UniPixel settings.
<ul>
<li>Meta (Facebook) Pixel and Conversion API: Sends user event data (e.g., PageView, Purchase) to Meta for tracking and ad optimisation.</li>
<li>Pinterest Tag and Conversions API: Sends event data to Pinterest for ad tracking and campaign optimisation.</li>
<li>TikTok Pixel and Events API: Sends event data to TikTok for ad tracking and campaign optimisation.</li>
<li>Google Analytics and Measurement Protocol: Sends event data to Google for analytics and conversion tracking via GA4 and Google Tag Manager.</li>
<li>Microsoft UET and Conversions API: Sends event data to Microsoft for ad tracking and conversion optimisation via Bing Ads.</li>
</ul>
<h3>Domains</h3>
This plugin communicates with the following domains: 
– Meta (Facebook): 
 – https://www.facebook.com 
 – https://graph.facebook.com 
– Google: 
 – https://www.google-analytics.com 
 – https://www.googletagmanager.com 
– Pinterest: 
 – https://api.pinterest.com 
 – https://s.pinimg.com 
– TikTok: 
 – https://business-api.tiktok.com 
– Microsoft: 
 – https://bat.bing.com 
 – https://capi.uet.microsoft.com 
– Buildio: 
 – https://buildio.dev
<h3>Data Sent</h3>
Data sent to these domains may include: 
– User interactions (e.g., clicks, page views, purchases) 
– IP address and user agent (collected by tracking mechanisms) 
– Custom event data such as purchase amount, currency, and transaction ID (depending on configuration) 
– Diagnostic information may be sent to Buildio to assist with plugin performance and bug fixes, including site URL, IP address and basic interactions. No sensitive information or keys are sent.
<h3>Privacy and Terms</h3>
For more details on privacy policies and terms of use, please visit the following links:
<ul>
<li><a href="https://www.facebook.com/about/privacy" rel="nofollow ugc">Meta (Facebook) Privacy Policy</a></li>
<li><a href="https://www.facebook.com/terms.php" rel="nofollow ugc">Meta (Facebook) Terms of Service</a></li>
<li><a href="https://policies.google.com/privacy" rel="nofollow ugc">Google Privacy Policy</a></li>
<li><a href="https://policies.google.com/terms" rel="nofollow ugc">Google Terms of Service</a></li>
<li><a href="https://policy.pinterest.com/privacy-policy" rel="nofollow ugc">Pinterest Privacy Policy</a></li>
<li><a href="https://policy.pinterest.com/terms-of-service" rel="nofollow ugc">Pinterest Terms of Service</a></li>
<li><a href="https://www.tiktok.com/legal/privacy-policy" rel="nofollow ugc">TikTok Privacy Policy</a></li>
<li><a href="https://www.tiktok.com/legal/terms-of-service" rel="nofollow ugc">TikTok Terms of Service</a></li>
<li><a href="https://privacy.microsoft.com/privacystatement" rel="nofollow ugc">Microsoft Privacy Statement</a></li>
<li><a href="https://about.ads.microsoft.com/en-us/resources/policies/microsoft-advertising-agreement" rel="nofollow ugc">Microsoft Advertising Agreement</a></li>
<li><a href="https://unipixelhq.com/privacy" rel="nofollow ugc">UniPixel Privacy Policy</a></li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later.

UniPixel: Meta, Pinterest, TikTok, Google & Microsoft Server-Side Tracking for WooCommerce

Send conversion events from your WordPress server to Meta, Pinterest, TikTok, Google and Microsoft. No cloud, no GTM. WooCommerce and custom events.

S2S Conversions vs UniPixel: Meta, Pinterest, TikTok, Google & Microsoft Server-Side Tracking for WooCommerce