Global Social Ad Targeting: Meta, TikTok, and LinkedIn Compared Across Markets

The instinct that paid social can be planned uniformly across markets dies quickly inside any real cross-border program. Meta dominates daily-active-user share across most Western markets and much of Latin America, but its share of the under-30 demographic has eroded against TikTok in Western Europe and parts of Southeast Asia. LinkedIn is the indispensable B2B platform in DACH, the Nordics, the UK, and North America — yet its penetration in Japan, Korea, and much of Latin America is thin enough that B2B programs there need a different platform mix. Treating the three as interchangeable across the twenty-plus markets we operate in is a fast way to misallocate budget.

We run paid social programs from our offices in Switzerland, Denmark, Poland, the Netherlands, the UK, and Hong Kong. The pattern that consistently delivers above-benchmark return on ad spend is platform mix set market by market, with a master creative system that adapts cleanly across all three platforms and a measurement model that respects each platform's attribution shape. This article walks through what each platform does well, where each fails, and how to plan the mix at the market level rather than imposing a global template.

Meta: The Universal Default With Caveats

Meta — Facebook and Instagram — is the closest thing paid social has to a universal platform. It has meaningful daily-active-user share in virtually every market we operate in, mature ad products covering the full funnel, and an auction model that responds predictably to creative-quality investment. The caveat is that Meta's demographic skew has shifted: the under-30 user base has thinned in Western Europe, North America, and parts of Asia-Pacific, while the 35+ demographic remains highly engaged and high-spending.

"Meta retains 67% of paid social ad spend globally despite TikTok's rapid growth, with shifts concentrated in specific markets and demographics rather than uniform global migration." — eMarketer Social Media Outlook, 2024

The eMarketer finding tracks what we observe in our own client programs. Meta's continued share is not driven by inertia; it is driven by the platform's depth in the older, higher-spending demographic and its mature optimisation toolset. The right framing for global programs is that Meta is the default platform unless the campaign objective specifically requires under-30 reach, in which case TikTok shares or replaces the budget allocation for that demographic.

For the deeper diagnostic on platform-mix decisions, our audit and strategy practice walks through the methodology we apply at program design.

LinkedIn: The B2B Anchor in Western Markets

LinkedIn is the dominant B2B social platform in DACH, the Nordics, Benelux, the UK, Ireland, and North America. For B2B programs targeting buyers in those markets, LinkedIn typically claims 20-35% of paid social spend, and the cost per qualified outcome — though high in absolute terms — is competitive with the alternatives once you account for buyer intent and decision-maker density. Outside those markets, LinkedIn's penetration thins: in Japan and South Korea local professional networks dominate; in parts of Latin America LinkedIn is present but underused for paid; in mainland China LinkedIn is not operational for ads.

Three platform realities govern LinkedIn budgeting in cross-border programs:

1. Cost-per-click is structurally high. LinkedIn's auction prices reflect

the inventory's value to B2B advertisers — CPCs five to ten times higher than Meta or TikTok are normal. Budget plans should assume this rather than treat it as a problem to optimise away.

1. Conversation Ads and Document Ads are the underused units. Sponsored

Content is the default and the most expensive. Conversation Ads and Document Ads typically deliver lower cost per qualified outcome for considered B2B purchases, but they require more creative discipline.

1. Lookalike audiences from CRM data beat broad targeting consistently.

Lookalikes built from a clean CRM seed of 1,000+ converted accounts outperform job-title or company-attribute targeting in most categories, and the gap widens over time as the lookalike learns.

TikTok: Where the Under-35 Lives in Select Markets

TikTok's growth has been faster than its global market penetration. In some markets — Western Europe, parts of Southeast Asia, Brazil — it now captures a material share of the under-35 daily-active-user pool and delivers competitive returns for B2C brands targeting that demographic. In other markets — Japan, much of MENA, parts of Eastern Europe — its penetration is thin enough that TikTok is a test layer rather than a core channel.

The right framing for TikTok in a B2B program is as a brand-awareness and employer-brand layer rather than a demand-generation channel. The platform's B2B ad products have matured but the audience's purchase posture is generally upper-funnel — useful for category education, weak for direct response on considered purchases. For B2C programs targeting the under-35 demographic in a market where TikTok has scale, the calculation reverses and TikTok can claim 20-35% of paid social.

Audience Strategy That Works Across Platforms

The audience strategy that scales cleanly across Meta, LinkedIn, and TikTok in parallel is built on three primitives: first-party CRM audiences, lookalikes derived from those CRM audiences, and platform-native interest audiences as a prospecting layer. Each platform implements these primitives differently, but the master audience strategy is portable: define the seed audiences once, push them into each platform, and let each platform's algorithm optimise within the agreed audience definition.

The single most expensive audience mistake we see in cross-border programs is proliferation: each market team builds its own audience segments, each campaign uses different definitions, and within six months the audience inventory has 300+ segments that no one fully understands. The corrective is audience-set governance: a master list of approved audience definitions, a quarterly audit that retires unused segments, and a standard naming convention that makes the audience inventory readable across markets. For the deeper data treatment, our data and analytics practice documents the audience-management model we operate.

Creative Adaptation Across Three Platforms

Meta, LinkedIn, and TikTok each reward different creative formats. Meta rewards short video and high-contrast static creative; LinkedIn rewards authority-signaling formats — Document Ads, executive-voice video, and longer-form Sponsored Content; TikTok rewards native-feel vertical video with fast hooks. A single master creative system needs to produce variants for all three rather than forcing a single format across the platforms.

The production model that works at scale is a "creative platform" rather than a "creative campaign." The platform produces a continuous flow of variant creative — typically twelve to twenty new variants per month per market — and the testing process identifies the winning variants quickly. This is opposed to the campaign model where creative is produced in big quarterly drops and each drop has to last twelve weeks. The platform model produces measurably better cost per qualified outcome because creative fatigue is the dominant performance drag in paid social, and continuous freshness defeats it.

Frequently Asked Questions

Should we use the same creative across Meta and TikTok if budget is tight? Generally no. TikTok's audience expects native-feel vertical video and penalises content that looks like Meta creative repurposed. The marginal cost of producing platform-specific creative is usually less than the performance cost of cross-posting, especially at scale. Where budget genuinely forces cross-posting, Meta-first creative on TikTok performs worse than TikTok-first creative on Meta — so produce TikTok-first if you have to choose.

How much should LinkedIn cost as a share of total paid social in a B2B program? 25-40% for B2B programs targeting Western markets is the working band. Going below 20% usually leaves volume on the table in the decision-maker layer; going above 50% concentrates too much in a single platform and underexposes the brand to the broader buyer-journey signal that Meta surfaces.

What's the right testing budget per platform when entering a new market? Allocate 60-70% of the test budget to the platform you have strongest priors about (typically Meta in most markets), 20-30% to the secondary platform (LinkedIn for B2B, TikTok for under-35 B2C), and 10-15% to a third platform as a sanity check. Twelve weeks of test budget at credible spend is usually enough to identify the right ongoing mix.

How do we handle attribution differences across Meta, LinkedIn, and TikTok? Run each platform's reporting at face value within its known limits, ingest server-side conversion events from your own systems, deduplicate against platform reports, and use a quarterly incrementality test to calibrate relative contribution. Trying to force the platforms to report against an identical model fails; calibrating against a shared truth layer succeeds.

Can TikTok work for considered B2B purchases? Increasingly yes, but as a top-of-funnel and employer-brand layer rather than as a direct-response channel. The audience's posture on TikTok is upper-funnel, and the performance pattern reflects that — strong on brand-search lift and pipeline influence over a 90-day window, weak on same-week direct conversion. Treat TikTok as a contribution to the funnel, not as a closer.

The fastest way to validate whether your current paid social mix is fit for each market in your program is to map current spend distribution against the platform-market fit logic above — explore our paid media services and we'll show you the reallocations that would compound across the next twelve months.