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At Adsterra, we’ve seen one thing become crystal clear: choosing the right GEO can make or break an affiliate campaign.
A few years ago, many affiliates focused almost entirely on Tier 1 countries. Today, that approach doesn’t always deliver the best returns. In 2026, the affiliates getting the strongest results are the ones making smarter GEO decisions. They match the right locations with the right offers, ad formats, and verticals instead of chasing the most obvious markets.
And if there’s one region that keeps outperforming expectations, it’s Southeast and East Asia. These markets combine rapid digital adoption, highly engaged users, and massive traffic potential. In this guide, we’ll show you the top GEOs worth targeting, explain why Asian markets are attracting so much attention, and help you identify the best opportunities for scaling your campaigns.
Test SEA markets with Adsterra
From what we see across our network, Southeast and East Asia have become some of the most rewarding regions for affiliate marketers. The appeal goes far beyond lower traffic costs.
These markets are growing fast. More people are coming online, digital services are expanding, and advertisers are investing heavily. That creates ideal conditions for affiliates to test campaigns, optimize performance, and scale profitably. What were once considered emerging markets are now delivering consistent results and impressive ROI.
Another advantage is diversity. You can promote the same vertical across countries like Vietnam, Indonesia, and the Philippines while reaching audiences with different behaviors and interests. That makes scaling easier and reduces risk. Countries such as India and the Philippines, along with Brazil, now generate more than 40% of affiliate conversions worldwide, showing just how important these regions have become.
Also, even with Southeast Asia, don’t limit yourself to the most popular GEOs. Markets like Myanmar, Malaysia, and Cambodia often fly under the radar. If your offer resonates with local users, you may discover excellent conversion rates with less competition.
Millions of new users come online across Southeast Asia every year. That means fresh traffic, new opportunities, and less audience fatigue than you’ll often find in saturated markets.
Smartphones dominate internet usage across the region. Mobile-friendly funnels, push ads, and in-page formats continue to perform exceptionally well because they align naturally with how users browse and engage online.
Digital payments, online banking, streaming platforms, and mobile entertainment are booming. As a result, demand remains strong for finance, iGaming, app installs, subscriptions, and other high-converting offers.
Competition is growing, but it still doesn’t compare to the pressure affiliates face in the US or Western Europe.
The United States still represents roughly 40% of the global affiliate market, which means advertisers and affiliates are fighting for the same audiences every day. In many Asian markets, there’s more room to test, optimize, and achieve positive ROI without massive budgets.
At Adsterra, we help advertisers reach millions of users across these high-potential markets. Whether you're targeting Vietnam, Indonesia, the Philippines, or other fast-growing GEOs, there are plenty of opportunities to scale quality traffic.
However, while Asia continues to dominate many conversations, other GEOs deserve attention too. India remains one of the most cost-effective markets for mobile app and iGaming campaigns, offering huge scale and steady demand.
Meanwhile, Pakistan and Turkey have delivered particularly strong results for In-Page Push campaigns, often outperforming expectations in terms of traffic quality and engagement.
The bottom line? There’s no single “best” GEO for every affiliate. Success comes from finding the right balance between traffic volume, competition, costs, and user intent. The affiliates who test broadly and adapt quickly are usually the ones who win.
Scale campaigns in emerging markets with Adsterra
Over the years, we've seen certain GEO clusters consistently deliver better results for affiliates. The key is finding regions where traffic quality, user intent, and campaign costs work in your favor.
If your goal is to grow fast without burning through your budget, Southeast Asia deserves your attention.
Countries like Vietnam, Indonesia, and the Philippines continue to generate impressive results across multiple verticals. We regularly see affiliates scale campaigns quickly thanks to a combination of affordable traffic and highly engaged audiences.
Why these GEOs stand out:
For many affiliates, this region remains one of the easiest places to find profitable scaling opportunities.
Japan and China are different beasts altogether. Traffic costs are higher, competition can be tougher, and users often expect a more polished experience. But the upside is significant. These markets attract digitally savvy consumers with strong purchasing power and a willingness to spend online.
If your offer, funnel, and creatives are tailored to these audiences, East Asia can become a highly profitable addition to your portfolio.
Some GEOs sit comfortably between low-cost emerging markets and expensive Tier 1 countries.India, Bangladesh, Brazil, and Turkey are great examples. These countries often provide healthy traffic volumes, reasonable acquisition costs, and growing consumer demand. For affiliates looking to diversify without jumping straight into highly competitive markets, these GEOs offer plenty of room to test and scale.
There's no denying the appeal of Tier 1 countries. The US, UK, and Western European markets often offer some of the highest payouts in affiliate marketing. At the same time, they're also the most competitive environments you'll encounter.
Traffic costs are higher, users are exposed to more advertising, and standing out requires stronger creatives, better funnels, and larger budgets. That's why we usually recommend approaching Tier 1 GEOs strategically rather than making them your only focus.
Different traffic formats perform differently depending on the market. Based on what we see across our network, these GEOs consistently stand out.
Top-performing GEOs:
These markets continue to deliver strong engagement rates and reliable conversion volume for Push-based campaigns.
Top-performing GEOs:
Pop traffic remains one of the fastest ways to drive large volumes of visitors, especially when paired with offers that convert quickly.
Top-performing GEOs:
These audiences respond particularly well to visually polished creatives and content-driven advertising approaches.
Test ad formats in Southeastern GEOs
As traditional channels become more crowded, many affiliates are exploring fresh traffic opportunities. One trend we're watching closely is the growth of messaging ecosystems.
Modern messaging platforms are no longer just communication tools. Users spend hours interacting with channels, communities, bots, and content inside these apps. That creates new opportunities for advertisers to reach highly engaged audiences in a more natural environment.
For affiliates willing to experiment, these ecosystems can unlock traffic segments that competitors haven't fully tapped into yet.
Choosing the right GEO matters. Choosing the right GEO and vertical together matters even more. These combinations consistently perform well across Asian markets.
Recommended GEOs:
Mobile usage is extremely high in these countries, making them ideal for iGaming and sports-related offers. Competition is strong, but demand remains strong enough to support large-scale campaigns.
Recommended GEOs: Thailand, Singapore.
The rapid adoption of fintech products, digital wallets, online banking, and investment platforms continues to fuel growth in the finance vertical. Users are increasingly comfortable trying new financial products and services, creating opportunities for affiliates promoting loans, payment solutions, and investing apps.
Recommended GEOs:
These markets have active mobile audiences and high adoption of social and communication apps. Both soft-sell and direct-response dating campaigns can perform well when properly localized.
Recommended GEOs:
VPNs, antivirus software, device cleaners, and privacy tools remain popular across these mobile-first markets. Users are highly engaged with apps that improve security, performance, and convenience.
Recommended GEOs: across Southeast Asia in general.
Sweepstakes continue to be one of the most flexible verticals for testing new traffic sources and scaling quickly. Simple user flows, broad appeal, and low barriers to entry make them a reliable option for many affiliates.
If there's one niche gaining momentum faster than almost any other right now, it's AI. AI-powered tools, automation platforms, productivity software, and business assistants are attracting growing user interest across global markets. We're seeing more advertisers enter the space, more offers become available, and more affiliates test AI-related campaigns as a long-term growth opportunity. For affiliates planning ahead, this is a vertical worth keeping on the radar.
We've seen Southeast Asia become one of the most rewarding regions for affiliates. But success here requires a different mindset than what works in the US or Western Europe.
Users move fast, spend most of their time on mobile devices, and respond best to straightforward messaging. The affiliates who adapt to these habits usually see stronger engagement and better ROI.
1. Put mobile first: for many users across Southeast Asia, a smartphone is often the only device to own. That's why every landing page should be designed with mobile users in mind from the start. We recommend:
A smoother mobile experience almost always translates into higher conversion rates.
2. Keep creatives lightweight: not every user has access to ultra-fast internet. Heavy files, oversized images, and resource-hungry scripts can slow down page loading and hurt performance before visitors even see your offer. Fast-loading creatives help you:
In many cases, simple performs better than flashy.
3. Speak the user's language: English can generate results in some markets, but localized content usually wins. Even small adjustments like translating headlines, buttons, or key selling points, can make offers feel more relevant and trustworthy. We've seen countless campaigns improve simply by adding a local touch to their messaging.
4. Test multiple messaging angles: there's no universal formula for every GEO. Some audiences respond well to direct, urgency-driven messaging. Others prefer softer, more informative approaches. That's why we always encourage affiliates to test different angles before scaling. What works in Indonesia may not perform the same way in Thailand or Vietnam.
5. Follow user activity patterns: traffic isn't equally valuable around the clock. User behavior often changes based on local schedules, weekdays, weekends, holidays, and even cultural habits. Tracking performance by hour and day helps identify your most profitable traffic windows and spend your budget where it matters most.
Even experienced affiliates can leave money on the table by choosing the wrong GEO strategy. Here are some of the most common mistakes we encounter.
A lot of affiliates automatically chase Tier 1 markets because of their high payouts. But higher payouts don't always mean higher profits. Expensive traffic, intense competition, and audience fatigue can make these markets difficult to scale, especially for new campaigns. In many cases, emerging GEOs deliver better ROI with far less risk.
One-size-fits-all campaigns rarely perform at their full potential. Users engage more when ads, landing pages, and offers feel tailored to their market. Ignoring local preferences can significantly reduce conversion rates.
A winning creative in one country isn't guaranteed to work somewhere else. Consumer behavior, cultural references, design preferences, and trends differ from market to market. The best affiliates treat each GEO as its own environment and adapt accordingly.
We've seen campaigns go from profitable to unprofitable simply because the budget was increased too quickly. Before scaling, make sure you've collected enough data to confirm the GEO is consistently performing. Validation first.
Many affiliates focus only on the GEOs everyone already knows. That often means missing some of the biggest opportunities. Emerging markets, especially across Southeast Asia, can offer lower competition, cheaper traffic, and plenty of room for experimentation. The next winning GEO is often the one everyone else is overlooking.
The affiliate landscape has changed dramatically. Relying exclusively on Tier 1 markets is no longer the safest or most profitable path. Rising acquisition costs and increasing competition make scaling harder than it was just a few years ago.
From what we see across our network, Southeast Asia has become one of the strongest growth regions for affiliates in 2026. Countries like Vietnam, Indonesia, and the Philippines continue to offer an attractive mix of traffic volume, affordability, and user engagement.
At the same time, East Asian markets bring a different advantage. Japan, Singapore, and China offer higher purchasing power and often generate stronger-value conversions for advertisers willing to invest in quality campaigns.
Tier 1 GEOs still have their place. They're valuable markets with significant earning potential. But they require sharper optimization, stronger funnels, and a more strategic approach to remain profitable.
The affiliates seeing the best results today aren't simply targeting the most expensive GEOs. They're testing consistently, adapting quickly, and scaling where the numbers make sense. That's what smart GEO selection looks like in 2026.
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