Your Conversions And Audiences, Delivered Server-Side, Verified At Runtime
The browser stopped being a reliable place to measure or target from. iOS App Tracking Transparency, Intelligent Tracking Prevention, ad blockers, and cookie deprecation all sit between your pixel and the ad platform's server - and every one of them can silently drop a conversion or exclude a user from an audience with no error, no alert, and no line in your dashboard telling you it happened.
Signals is Webclat's server-side conversion engineering and audience-infrastructure engineering practice. We build the backend pipe that sends conversions and audience membership straight from your server to the ad platforms - Meta, TikTok, Google, LinkedIn, X, Snapchat, Pinterest - and we verify, at runtime, that it actually arrived. This is engineering work: installation, consent gating, event deduplication, and verification. It is not a marketing-optimization retainer.
Two Halves Of One Pipe
CAPI and Audiences are not two unrelated services. They are the same event and customer data, sent outbound in two different directions - one to prove a conversion happened, one to say who should see the next ad.
CAPI - the measurement direction
Your server tells the ad platform "this conversion happened," independent of whether the visitor's browser cooperated. This is Conversions API (Meta), Events API (TikTok), Enhanced Conversions (Google), and the equivalent server-to-server event calls at LinkedIn, X, Snapchat, and Pinterest.
CAPI implementation →Audiences - the targeting direction
Your server tells the ad platform "here is a defined group of people" - cart abandoners, users who never finished signup, existing customers to suppress from acquisition spend, best customers to build a lookalike from. Same data pipe, opposite direction.
Audience infrastructure →Get A Signal Audit
We check what your current pixel-only setup is actually missing - matched events, dedupe rate, consent gating, audience sync freshness - before you pay for a rebuild you may not need in full.
What We Install
One implementation per platform, four disciplines applied to every one: install the server-side event call, gate it on consent state, deduplicate it against the client-side pixel, then verify it in the platform's own event diagnostics.
Meta Conversions API
Facebook and Instagram CAPI - the full pillar, dedupe logic, and Shopify/WooCommerce/GTM variants.
Meta CAPI →TikTok Events API
Server-side event delivery for TikTok Ads, including the Shopify integration path.
TikTok Events API →Google Enhanced Conversions
Enhanced Conversions via GTM and GA4, plus offline conversion upload to Google Ads.
Enhanced Conversions →LinkedIn Conversions API
B2B conversion delivery and offline conversions for high-CPC LinkedIn campaigns.
LinkedIn CAPI →X (Twitter) Conversion API
Server-side conversion events for X Ads.
X CAPI →Snapchat Conversions API
Server-side event delivery for Snapchat Ads.
Snapchat CAPI →Pinterest Conversions API
Server-side conversion tracking for Pinterest Ads.
Pinterest CAPI →CAPI Gateway & Tooling
Where a gateway tool (Stape, a CAPI Gateway product) fits versus a custom build - and when we recommend against one.
Gateways explained →CAPI Service Overview
The four-discipline framework applied to every platform: install, consent-gate, dedupe, verify.
CAPI overview →What We Build
Audience infrastructure is a mechanics layer (Customer Match, Custom Audiences, lookalikes) plus a use-case layer - the actual customer-lifecycle segments worth syncing, and why each one needs different creative.
Incomplete Registration = Hot Leads
Users who started signup and never finished are your hottest list - not a cold audience. Flagship use case.
Read →Cart Abandoners
A short-window, nudge-led segment - defined precisely, synced fast.
Read →High-Intent, Not Converted
Viewed pricing or checkout but didn't buy - urgency and proof, not a discount.
Read →Suppression & Upsell
Stop paying to reacquire your own customers - or reach them with upsell creative instead.
Read →Best-Customer Lookalikes
Build a prospecting seed list from your highest-value customers, not your whole file.
Read →Churned / Win-Back
A lapsed customer needs a different offer than a new prospect - and a different suppression rule.
Read →Audience Infrastructure Overview
The mechanics: Customer Match, Custom Audiences, and lookalike audiences, explained.
Audiences overview →How We Verify It Worked
A conversion API call that returns HTTP 200 from your own server proves nothing about what the ad platform did with it. Verification happens on the platform's side, not ours.
- Event appears in the platform's own diagnostics (Meta Events Manager, TikTok Events Manager, GA4 DebugView, LinkedIn Campaign Manager)
- Event Match Quality / match rate is reported, not just "received"
- Deduplication confirmed - the server event and the client pixel event resolve to one conversion, not two
- Consent state is reflected before the event is even sent, not filtered downstream
- A test purchase or lead traces end to end, with a timestamp match
- Audience size in the ad platform matches the expected segment size within a normal hashing/match-rate gap
- Sync frequency confirmed (real-time, hourly, or daily - stated, not assumed)
- Suppression audiences actually exclude, checked with a live ad preview or overlap report
- Consent-gated users are excluded from sync where required
- Segment definition documented so a non-technical team member can audit it later
hypothesis: most CAPI implementations we have reviewed that were built without a verification step had at least one silently broken piece (usually dedupe or consent gating) - this is our inference from implementation work, not a measured statistic across a client population, and it is labeled as such rather than presented as a fact.
The Rest Of The Pipe
Signals is the outbound half of the tracking stack. The inbound half - capturing and centralizing the event data in the first place - lives with our sibling practices.
Server-Side GTM
gtm.webclat.com - if your event data already flows through a server-side Tag Manager container, CAPI implementation reuses that container instead of a second one.
Visit gtm.webclat.com →Tealium EventStream
tlm.webclat.com - if you run Tealium, AudienceStream is the vendor-native way to build and sync audiences; we cross-link rather than duplicate that content.
Visit tlm.webclat.com →Ecommerce Tracking
ecomm.webclat.com - Shopify/WooCommerce-specific CAPI and cart-abandonment audience work for online retail.
Visit ecomm.webclat.com →Consent Management
ot.webclat.com - every CAPI event and every audience sync we build is gated on consent state managed here.
Visit ot.webclat.com →Frequently Asked Questions
Is this an SEO or marketing-optimization service?
No. Webclat does not sell SEO or marketing optimization services. Signals is a server-side conversion engineering and audience-infrastructure engineering practice - we install, consent-gate, deduplicate, and verify backend conversion signals and audience syncs. The deliverable is a working pipeline you can inspect, not a report.
What is the difference between CAPI and Audiences?
Conversions API (CAPI) sends conversion events from your server directly to an ad platform, so a purchase or lead still gets counted when a browser blocks or loses the client-side pixel. Audiences is the outbound half of the same pipe used for targeting instead of measurement - syncing a defined customer segment (cart abandoners, existing customers, best customers) to the same platforms so ad spend reaches the right list.
Do you require server-side GTM or a specific CDP first?
No, but it helps. If you already run server-side Google Tag Manager (gtm.webclat.com) or Tealium EventStream (tlm.webclat.com), CAPI implementation is faster because the event data is already centralized. Without one, we build the event capture and the conversion/audience delivery together.
How do you verify a CAPI implementation actually worked?
Every implementation ends with a runtime verification pass: checking the platform's own event-diagnostics tool (Meta Events Manager, Google Tag Assistant/GA4 DebugView, TikTok Events Manager, etc.) for a received, matched, and deduplicated event - not just a 200 response from our own server. See the proof-of-verification method below.
Tell Us What Your Pixel Is Missing
Send us a platform (Meta, TikTok, Google, LinkedIn, X, Snapchat, Pinterest) or a segment you want synced, and we will tell you what a proper server-side implementation looks like for your stack - install, consent gate, dedupe, verify.