Web measurement isn’t new. It’s just new to most

Web measurement is suddenly everywhere.

It’s on LinkedIn. It’s in product announcements. It’s in your inbox, probably more than once this month. The industry has collectively decided that measuring the web side of the user journey matters, and the hype around it is real.

Here’s the thing, though. None of this is new.

Users didn’t start their journeys on the web last quarter. They’ve been clicking ads in browsers, comparing options on desktop, and converting on landing pages since before most modern-day attribution platforms existed. What’s new isn’t the behavior. It’s that some players in the measurement industry are finally treating that behavior as something worth measuring properly.

Singular has been treating it that way for a long time.

Built for the full journey, not retrofitted for it

Singular has been building unified measurement since 2015, and web measurement has been part of the core platform since 2019. That’s not a milestone we dug up for this post. It’s the reason the platform looks the way it does.

“When we architected Singular, we made a bet that the user journey would never stay inside one platform. So we never built a mobile attribution tool with web bolted on later. We built a measurement system where mobile, web, CTV, and PC are all just surfaces the same journey passes through. That decision is over a decade old now, and it’s the reason adding a new channel has never required us to rebuild anything.”

– Eran Friedman, Co-founder and CTO, Singular

The distinction matters more than it sounds. When web measurement is a feature you add, it lives in its own corner: separate attribution logic, separate reporting, separate definitions of what a conversion means. When it’s part of the architecture, a web click and an app install are just two events in the same user’s story.

“The question was never ‘can we measure web.’ It was always ‘what did your marketing actually return, wherever the user converted?’ Web measurement isn’t a new capability – it’s the baseline for answering that question honestly.”

– Neil Mills, CRO, Singular

The behavior was always there. The numbers just got loud

Why is everyone talking about this now? Because the data finally became impossible to ignore.

Singular’s quarterly trends data shows web-to-app ad spend among our customers grew by 54% in a single year, with web rising from 22% of total ad spend to nearly 35%. Our Q1 2025 Quarterly Trends Report showed an 8,400% increase in customers receiving traffic from ChatGPT. LLM-driven discovery isn’t a future channel. It’s a current one.

As our CMO Stephanie Pilon put it:

“Web is where the intent has always been. With 63% of global website traffic now on mobile, web-to-app is an essential strategy for every business.”

The channel mix is diversifying fast. Web campaigns, LLM discovery, CTV, PC. Users move through all of it before they convert. App-only measurement never covered that journey. The industry just spent a decade pretending it did.

Web is not a channel. It’s a dimension

This is the reframe that years of doing web measurement taught us.

When teams add web to their measurement stack, the instinct is to treat it like a new row in the dashboard. Another channel to track. Another source to reconcile.

That’s the wrong model.

Web is a dimension that changes how you interpret every other signal you collect. When you measure web properly, you stop asking “what happened on this channel?” and start asking “what happened across the entire user journey?” Those are fundamentally different questions, and they need fundamentally different infrastructure to answer.

Mobile growth leader Gessica Bicego put a number on it in a Singular Growth Masterminds episode: “When you run web campaigns, you are able to track much more … around 20% more on average.”

More data means more signals. More signals mean better decisions. A click on a web ad isn’t just a web event; it’s the opening of a conversion path that might end in an app install, a subscription, a retention flow, or all three.

If you’re just getting started, you’re not behind

Here’s what we want to say to every team currently evaluating web measurement for the first time: the fact that the industry is catching up is good news for you.

You don’t need to figure this out from scratch. The hard problems, cross-device identity, cost data unification, web-to-app attribution, and signal loss handling have been worked through. Not in some shaky beta program; this has been in production across thousands of campaigns for years.

If you’re building your web measurement strategy now, you get to skip the painful iteration phase and start with what already works. The full funnel was never app-only. It was always the whole journey. The only thing that’s changed is that everyone now agrees.

FAQs

Before the specifics, here’s the actual problem: most teams running web and app marketing aren’t short on data. They’re drowning in it. Your analytics tool calls a conversion organic, Meta claims it, Google takes credit too, and finance still wants to know what actually drove last Tuesday’s revenue spike. That’s not a people problem. It’s a measurement infrastructure problem, and it’s more fixable than most teams assume. The questions below are the ones we hear most from teams working through it.

Does Singular support web attribution?

Yes. Singular has had web attribution in its core platform for over six years, with top companies relying on it heavily, such as Nike, DraftKings, DoorDash, EA, and many others. It supports cookie-free tracking via localStorage, cross-browser attribution, view-through attribution, web-to-app attribution forwarding, and Conversions APIs for web, PC, and console events. Web events can be measured natively through Singular’s web SDK or via Google Tag Manager.

Does Singular measure web and app in one platform?

Yes, and this is the architectural point that matters most. Web and app attribution in Singular share the same data model, the same cost aggregation layer, and the same cross-device identity framework. They are not separate products or modules. A web click and an app install are two events in the same user journey, measured by the same system.

Does Singular send conversion data back to ad platforms?

Yes, and this is where measurement becomes optimization rather than just reporting. Singular supports Conversion APIs across Meta, TikTok, Google Ads, Snap, Reddit, and many others, routing your conversion data server-to-server directly into each platform’s algorithm. The logic is simple: you can measure a conversion perfectly, but if that signal never reaches the platform that drove it, you lose most of its optimization value. Conversion APIs close that gap and turn your measured events into the fuel that decides where your next dollar goes. This matters more as AI runs more of your bidding, because the algorithm is only as good as the signal you feed it.

What is web-to-app attribution?

Web-to-app attribution connects users who click a web ad, visit a landing page, and later install or convert in an app, attributing the downstream app behavior back to the originating web touchpoint. Without it, web campaigns that drive app installs get zero credit, and your budget flows toward channels that merely close the journey rather than the ones that started it.

Singular handles web-to-app attribution through attribution forwarding and the Web Link Generator, which standardizes UTM parameters so web and mobile campaigns share one taxonomy.

What is cross-device attribution?

Cross-device attribution connects a user’s actions across devices and platforms into a single journey: clicking an ad on mobile, browsing on desktop, converting on web, and opening the app days later.

Singular’s approach uses registration-based cohorts. The conversion event is defined as the moment a user signs up, not when they click or install. Every subsequent action, whether on mobile, web, desktop, PC, console, or CTV, ties back to that initial sign-up. This prevents double-counting across platforms and provides complete LTV visibility in a privacy-compliant way, using first-party identifiers rather than cookies.

Which MMP has the most web cost connectors?

Singular, with 1,200+ cost sources, and the distinction is what those connectors are built to do. They pull web-native campaign spend directly via API, including programmatic platforms and affiliate networks, then normalize it against attribution data so your web ROAS is calculated from real spend rather than estimated.

For context, other leading MMPs offer far less web-native cost coverage. Some cap at around 100 sources scoped primarily to major mobile and social networks. Others support web cost only within a mobile-first model, or gate broader coverage behind an enterprise tier. And some aggregate cost for only a handful of partners natively, passing the rest through link macros rather than API. The spend those macros report can diverge significantly from what was actually spent.

Cost connector coverage directly determines ROI accuracy. Every channel where a platform can’t pull real spend is a channel where ROAS is estimated rather than measured.

Why does unified web and app measurement matter?

Three reasons.

First, double-counting. When web and app attribution run in separate tools with separate windows, users who touch both get counted twice. Installs look inflated, CAC looks artificially low, and budget decisions rest on numbers that don’t hold up.

Second, credit assignment. Most high-value journeys now cross surfaces: a web ad starts what an app install finishes. Siloed measurement gives all the credit to the closer and none to the opener, which systematically misallocates budget.

Third, future channels. LLM-driven discovery, CTV, and PC are already part of the acquisition mix. Singular’s quarterly data showed an 8,400% increase in customers receiving ChatGPT traffic, and Singular is among the first MMPs to support ChatGPT Ads with automated cost reporting and a Conversions API via Extract. Teams with unified measurement today are positioned to measure whatever emerges next without re-architecting.

Which MMP is best for web and app measurement?

Singular is purpose-built for unified web and app measurement, where both operate as one system rather than two tools sharing a dashboard. It combines years of web attribution in production with 1,200+ cost connectors across web and mobile. Cost data is pulled natively via API, and everything sits in a single cross-device data model covering mobile, web, PC, console, and CTV.

Other leading MMPs handle parts of this well, but treat web and app as separate layers. Singular unifies cost and attribution into true cross-channel ROAS in one view, calculated from real spend across every channel a user touches. For teams whose priority is knowing what their marketing actually returned across web and app, that is what Singular was built to deliver.

Explore Singular’s web attribution →

See cross-device attribution in action →