Best Ways to Improve EPM in CPA Affiliate Campaigns

Reading Time: 20 minutes

Increasing EPM (earnings per mille) in CPA affiliate marketing means generating more revenue per 1,000 clicks or visits (depending on how traffic is calculated). A higher EPM shows more efficient monetization, but it doesn’t mean the campaign is more profitable. Besides conversion rates, offer payout, and traffic acquisition cost, audience quality also matters.

The amount of earnings of two campaigns with similar traffic can differ a lot. One campaign can receive traffic from visitors in GEOs where suitable offers are available, while another can receive traffic from users on devices or from locations that don’t suit the advertiser.

Affiliate traffic optimization starts with identifying which traffic segments earn money and where earnings are being lost. Affiliates don’t just need to increase clicks; they also need to analyze GEOs, devices, placements, offer availability, and conversions.

This article covers effective traffic monetization practices, such as traffic segmentation, Smartlink routing, offer matching, conversion optimization, and scaling.

TL;DR

• Separate GEOs, devices, sources, and placements to identify meaningful performance differences.
• Relevance of traffic to the offer is more important than the highest advertised payout.
• Utilize Smartlink technology when you have mixed traffic that requires several offers.
• Ensure the creative, prelander, device experience, and final offer match user expectations.
• Apply other ways to monetize traffic that don’t work within the primary funnel.
• Scale segments that have proven performance potential rather than scaling temporary EPM bursts.
• View EPM alongside other statistics, such as conversions, earnings, traffic volume, and campaign context.

Table of Contents

• Best Strategy #1: Segment Affiliate Traffic Before Optimizing It
• Best Strategy #2: Improve Offer Matching With Smartlink
• Best Strategy #3: Strengthen the Conversion Environment Around the Click
• Best Strategy #4: Monetize More of the Traffic You Already Have
• Best Strategy #5: Scale Profitable Traffic Without Sacrificing EPM
• Examples: Best EPM Strategies for Different Campaign Situations
• Common EPM Optimization Mistakes and Expert Tips
• EPM Statistics and an Adverten GEO Performance Case Study
• Conclusion: Build Better EPM Through Better Traffic-to-Monetization Fit
• FAQ About Improving EPM in CPA Affiliate Campaigns

Introduction

EPM translates campaign earnings into a traffic monetization metric. It can uncover inefficiencies among campaigns with equal traffic volume, yet it doesn’t reveal the reasons for that by itself. GEO mix, devices, offer availability, payouts, creative relevancy, funnel resistance, placement, and conversion delay may affect the outcome.

Efficient EPM research goes beyond efforts to “get the number up.” Affiliate traffic optimization starts with inputs you can control: who comes, where from, what they see, what offer they see, and what happens when the main path doesn’t work. Effective traffic monetization strategies combine these inputs with measurable earnings.

The most efficient strategy is replicable. Efficient affiliate revenue optimization requires adjustments that stay relevant despite changes in traffic volumes, placements, and offer conditions. In this article, we discuss the best affiliate optimization strategies regarding segmentation, offer matching, Smartlink routing, conversion experience, secondary monetization, and scaling. Adverten’s guide to publisher traffic monetization includes the corresponding tracking and postback workflow.

Best Strategy #1: Segment Affiliate Traffic Before Optimizing It

The campaign average is an example of a statistic that conceals potentially important distinctions. In one case, a GEO could convert very efficiently, while in another it could receive many clicks but have less effective offer targeting; even mobile vs. desktop performance can vary within the same campaign. Segmentation should be a decision-making tool, not just another way to create more reporting rows.

Separate Traffic by GEO

GEO will alter either eligibility or economics. A good GEO segmentation should consider whether visitors receive a suitable offer, not just sorting countries according to one-week EPM.

Some important things that depend on GEO:

• availability and campaign limitations;
• differing payouts/conversion schemes;
• languages and cultural expectations;
• device types and usage habits in each market;
• differing funnel length or qualification criteria;
• capping campaigns and advertiser changes.

When dealing with multi-GEO traffic, don’t hide good-performing GEOs, and don’t assume low-EPM GEOs automatically have low-performing traffic. It might be due to offer suitability and funnel discrepancies.

Separate Mobile, Desktop, and Device-Specific Traffic

Optimizing device performance matters because even relevant traffic can lose value due to a poor user experience.

Check device segments for:

• page and resource loading speed;
• layout and CTA display in smaller devices;
• the length of forms and input difficulties;
• browser and OS compatibility;
• redirect behavior;
• message density and creative format;
• whether or not final offer fits that particular device and OS.

Device performance is measurable, so poor user experience should not remain an overlooked part of the funnel.

Isolate Traffic Sources, Placements, and Sub-Sources

Even with the same GEO and device, EPM will vary by source and placement because each user brings different expectations and intentions.

Good segmentation criteria are:

• source;
• publisher website;
• campaign ID;
• placement ID;
• creative ID;
• sub-ID;
• landing/pre-landing path.

Consistent IDs make it easier to identify bad placements without killing the whole source. The Adverten guide on the affiliate networks’ workflow describes the connection between IDs, campaign parameters, and postback URLs.

Choose the Right Segmentation Depth for Traffic Volume

Segmentation makes sense when traffic is high enough to give us an indication in each bucket. When we put every permutation of GEO, device, source, creative, placement, and hour into its own bucket, some buckets probably won’t have enough traffic to draw conclusions.

Traffic dimension	Why it can affect EPM	When segmentation helps	When it may be too granular
GEO	Offer availability, payout, audience fit	Multi-GEO or worldwide traffic	Very low volume per country
Device/OS	UX and offer compatibility	Mixed mobile/desktop traffic	Small campaign with few conversions
Source	Different audience intent	Multiple acquisition channels	One source with limited volume
Placement/sub-ID	Localized quality differences	Large sources with many placements	Sparse placements with isolated clicks
Creative	Different promise and audience response	Multiple active creatives	Too many creative variants at once

The ideal level of segmentation is sufficiently granular to give us a useful conclusion. When data is sparse, combine relevant segments or wait for more information rather than making assumptions based on random fluctuations.

Best Strategy #2: Improve Offer Matching With Smartlink

Matching an offer can be more important than a big offer. A high-paying offer might underperform when the audience isn’t qualified, the device experience is poor, and no offer is available. Adverten Smartlink routes traffic to relevant available offers and lets you monitor performance through real-time statistics and postbacks.

Prioritize Offer Relevance Over the Highest Payout

A high payout doesn’t necessarily mean the most valuable offer. Revenue depends on the traffic’s ability to complete the required action.

Before allocating any traffic to an offer, take into consideration:

• whether the GEO is accepted;
• whether the device and OS are compatible;
• whether the traffic source is acceptable;
• the alignment between the intent of the traffic and the conversion action;
• the level of friction in the conversion funnel;
• whether the offer is active and within its cap;
• the past performance of the offer on similar traffic.

Lower payouts can increase revenue if the offer is more relevant or converts better. This is also true in Adverten’s guide to publisher revenues.

Use Smartlink Routing for Mixed Traffic

SmartLink routing makes sense when traffic varies or offers change dynamically, making manual allocation impractical. The SmartLink optimization methods above perform well only if routing is a bottleneck.

Use cases for SmartLinks are:

• multi-GEO traffic;
• a combination of mobile and desktop traffic;
• several segments for one acquisition source;
• campaigns with frequently changing offer availability;
• heavy traffic that needs a lot of separate direct links;
• monetization on a larger scale with one direct offer unable to take all traffic.

The Adverten guide to SmartLinks and dating traffic covers routing according to GEO, language, device, OS, offer availability, caps, and performance context. Clean source and segment IDs are still required to identify sources of revenue.

Reduce Revenue Loss When Offers Become Unavailable

An otherwise effective campaign can underperform for reasons unrelated to traffic quality. When all traffic follows the same target URL, caps, pauses, or other factors may cause an immediate revenue shortage.

Alternative routing will be helpful when:

• a daily cap is met;
• a particular offer is paused;
• the GEO is temporarily unavailable;
• certain devices/traffic types are not allowed anymore;
• terms have changed;
• the advertiser changes a funnel;
• the offer fails for a certain audience group.

Alternative routing helps avoid unnecessary losses if another suitable offer exists. The Adverten analysis of Smartlinks vs direct offers shows how the methods can complement each other.

Know What Smartlink Can — and Cannot — Optimize

Smartlink can connect traffic to relevant offers, but it doesn’t resolve upstream acquisition issues, compliance, tracking, or audience issues.

Campaign factor	Smartlink can influence	Affiliate controls	Shared dependency
Offer routing	Yes	Traffic sent into the system	Available offers and rules
GEO/device fit	Yes, within available campaigns	Targeting and source mix	Accurate traffic signals
Creative relevance	No	Messaging and creative selection	Advertiser restrictions
Prelander quality	Limited to available setup	Prelander design and traffic path	Technical compatibility
Tracking quality	Uses available tracking	IDs, postbacks, campaign setup	Network and advertiser reporting
Invalid or misleading traffic	Not a routing fix	Traffic acquisition and compliance	Verification and monitoring

MRC standards for Invalid Traffic distinguish legitimate measurement from invalid actions, and IAB Tech Lab offers tools to detect spiders/bots. A low EPM rate does not prove the presence of fraud, and Smartlink routing is not an anti-fraud tool per se.

Best Strategy #3: Strengthen the Conversion Environment Around the Click

Click is the point of transition from acquisition to monetization. Factors that affect conversions after the click include ad creative, prelander, usability, landing page experience, and tracking, which influence conversion and revenue. Even with relevant traffic, people can drop off because the landing page is slow, the offer doesn’t meet their expectations, or they don’t know what to do next. Analyzing every stage of this process will help affiliates see where they lose conversions.

Match Creative Intent With the Offer

The creative should target users whose expectations could be met at the subsequent stage of the funnel. Curiosity clicks will improve CTR but not revenue.

Maintain the path from creative to offer by verifying:

• that the creative is describing the real value proposition;
• that the user knows what comes after the click;
• that targeting fits the audience in the message;
• that claims are consistent between the creative, prelander, and offer;
• that all necessary disclosures are made and conspicuous;
• that the promotional approach is in compliance with the campaign regulations.

The U.S. Federal Trade Commission’s advertising and marketing communications guidelines require all claims to be truthful, not misleading, and substantiated. Proper expectation-setting will minimize the difference between the click and the desired action.

Use Prelanders to Prepare the Right Audience

Use a prelander when the visitor needs context before arriving at the offer. A prelander enhances continuity rather than adding an extra page.

A good prelander may be used to:

• explain the offer type or subsequent action;
• align expectations of the user with the sales funnel;
• provide context that is difficult to include in a short creative piece;
• filter out clearly irrelevant visitors from those who have interest;
• add yet another touchpoint for tracking the source/traffic;
• guide visitors to the correct next step, where permitted.

Adverten’s article about Smartlinks and prelanders includes traffic preparation and source-level analytics. When the prelander resembles editorial content, follow the FTC disclosure rules in its native advertising guidance.

Optimize the Experience for the Device

Even with a good offer match, performance can still be poor if the page doesn’t perform well on the user’s device. Device optimization must tie in performance with usability for conversion.

Examine the mobile and desktop experience with regard to:

• Visibility and usability of call-to-action buttons;
• Responsiveness of layout;
• Readability of content without having to zoom in;
• Efficient navigation and loading of resources;
• Redirect stability;
• Length and usability of forms;
• Payment or registration processes;
• Compatibility between advertisement and landing pages.

This extends the idea of traffic optimization: traffic must be sent to the right offer through a usable path. The Navigation Timing specification from W3C offers data on page navigation timing.

Protect Optimization With Accurate Tracking and Postbacks

Optimization is not possible when clicks, conversions, and earnings cannot be reliably attributed. Ensure that you have the identifiers necessary to match your traffic segment with its outcome.

A well-designed system usually ensures consistency in the following components:

• Campaign and Source Identifiers;
• Sub-IDs/Placement IDs;
• Click Identifiers;
• Conversion Events;
• Postback settings;
• Revenue/Payout Values where applicable;
• Consistent Naming for Tests and Variants.

IAB Tech Lab’s Event & Conversion API Specification standardizes the communication of marketing events and conversions. Adverten also supports real-time performance tracking and postbacks, which makes accurate identifiers crucial for segmenting Smartlink traffic.

Best Strategy #4: Monetize More of the Traffic You Already Have

More clicks alone cannot resolve a monetization issue. If incoming traffic doesn’t meet the requirements of the main offer, adding more traffic will only create further issues. What must be done is to figure out how good traffic turns into non-monetizable traffic, and create a new path for it without disrupting the current path. Some users can come from unsupported GEOs, use devices that are not accepted by the offer, or visit when the limit has already been hit by the campaign. They can, however, suit other available offers.

Recover Traffic That Does Not Fit the Primary Offer

Not all users who don’t pass through the main funnel are bad traffic. There are some users who just do not fit into this particular campaign.

The reasons may be as follows:

• GEO not supported;
• device/OS not supported;
• campaign cap reached;
• offer on pause or no longer available;
• language not supported;
• traffic source restriction;
• user ineligible for the offer;
• intent that suits other conversion funnels.

So the traffic pool can include high-quality primary-offer traffic and traffic that is relevant but needs a different destination. Smartlink routing can help distribute this traffic across relevant campaigns rather than sending everyone straight to one offer. Adverten’s overview of how CPA affiliate networks operate shows how matching works across different criteria.

Add Secondary Monetization Without Damaging the Core Funnel

Secondary monetization works when the system restores value without affecting users well-matched to the primary stream.

If the configuration has been allowed by the system, the secondary ways of monetizing include:

• traffic-back routing;
• alternative offers;
• additional funnels;
• prelander-based streams;
• other ways of monetizing provided within the network.

The basic question is whether you need to use the secondary stream to restore traffic flows that would otherwise be wasted. If the secondary stream distracts from the well-performing primary flow, overall earnings will decrease even if the secondary stream generates income. Adverten provides affiliates and publishers with Smartlink and other traffic monetization options.

Compare Primary and Additional Monetization Layers

The right monetization layer depends on the nature of the problem the traffic poses. When the segment is known and qualified, use a primary offer; when the segment is mixed or otherwise hard to monetize directly, use broader routing or more monetization.

Monetization layer	Traffic addressed	Potential benefit	Main limitation	Best use
Validated direct offer	Known, well-matched segment	High control over funnel	Limited coverage for mixed traffic	Stable targeted segment
Smartlink routing	Mixed GEO/device/audience traffic	Broader offer matching	Less control over each individual destination	Diverse traffic pools
Alternative offer route	Traffic blocked from primary offer	Recovers otherwise lost visits	Requires a suitable active alternative	Caps, pauses, eligibility gaps
Traffic-back/additional route	Residual or unmatched traffic	Extends monetization coverage	Must not disrupt primary funnel	Traffic with no primary fit
Prelander-assisted route	Traffic needing context or qualification	Better message continuity	Adds another funnel step	Sources needing preparation

The most effective traffic monetization strategies are layered: first, protect the best-performing path, then route others.

Best Strategy #5: Scale Profitable Traffic Without Sacrificing EPM

This can result in a lower position, more aggressive targeting, faster cap-hitting, or a shift in traffic distribution. Advertiser promotion may bring more money but lower EPM, or vice versa; EPM may be higher, but volume may be too low. For instance, expanding the traffic budget can bring new placements that don’t perform as well as the old ones. Overall profit will increase as visits rise, but earnings per 1,000 clicks may be lower. That is why affiliates must monitor not only the traffic they get during scaling but also its conversion rate.

Scale Stable Winners Instead of Short-Term Spikes

A high EPM one day doesn’t necessarily prompt aggressive scaling, but there should be signs the result can be repeated under the same conditions.

The segments suitable for scaling tend to demonstrate:

• performance during several short observation periods;
• high enough traffic that would limit the role of individual conversions;
• a conversion rate that does not rely solely on one anomaly;
• consistent offer availability;
• constant sources and placements’ balance;
• no signs of any tracking disruptions;
• no abrupt change in the payout that may explain everything.

There is no such number of clicks/conversions that guarantees the readiness of the segment to be scaled. Everything depends on many factors.

Increase Volume Without Changing Too Many Variables

If volume increases coincide with GEO, creative, source, prelander, offer, and device mix changes, it will be hard to determine the reasons for the shift in EPM. Controlled testing is more revealing than a campaign reconstruction disguised as testing.

A good process to follow would be to:

• determine the core change that needs to be tested;
• note the initial mix of traffic and baseline period;
• control other campaign parameters that are irrelevant to testing;
• check how new volume appears – from the same placements/audience or not;
• note changes in offers/payouts in the test;
• have an option to reverse the change if the effect diminishes.

NIST guide on Experimental Design highlights the importance of planning tests around defined factors and responses. Affiliate marketing campaigns are not laboratory systems, but the approach can help filter the meaningful signals from chaos.

Protect EPM After Scaling

If EPM drops after scaling, the subsequent question should not be “Was scaling incorrect?” but rather “What changed in traffic or monetization mix?”

Possible reasons could be:

• addition of placements with lower intent;
• wider reach of audience;
• increase of unsupported GEOs;
• offer caps or decrease in offer availability;
• payout change;
• more complicated or time-consuming conversion process;
• changes in device mix;
• higher percentage of traffic using secondary flow.

This is where affiliate revenue optimization and EPM have to go hand in hand. Even a slight drop in EPM can be acceptable if profitable total revenue grows, while high EPM with low total revenue may simply reflect limited traffic volume. The right scaling choice balances efficiency, profitability, stability, and offer capability.

Examples: Best EPM Strategies for Different Campaign Situations

Choose among the best affiliate optimization strategies by starting with the bottleneck. Offer-eligibility problems need different solutions from mobile-usability problems.

Campaign situation	Best strategy to consider first	Supporting strategy	Why
Mixed international traffic	GEO/device segmentation	Smartlink routing	Different users need different eligible offers
High-volume single-GEO traffic	Source/placement segmentation	Controlled scaling	Aggregate GEO data can hide placement differences
Mobile-heavy traffic with uneven results	Device experience optimization	Offer/device matching	Funnel friction may be device-specific
Traffic outside primary offer rules	Alternative monetization route	Smartlink or traffic-back	Legitimate visits may still be monetizable elsewhere
Stable profitable segment	Controlled scaling	Tracking and cap monitoring	More volume is useful only if economics remain repeatable

Example: Mixed International Traffic

Due to traffic from several different countries and both mobile and desktop users, one direct offer will not be able to accommodate all GEOs and devices.

The first step that should be taken is:

• separate reporting based on GEO and device;
• keep source and placement IDs the same;
• Smartlink routing for the larger pool;
• keep separate segments that have direct offers that work well;
• check for GEO/device pairs that keep needing an alternative offer.

This is a great example of how to use Smartlink optimization strategies, since the issue is traffic distribution.

Example: High-Volume Single-GEO Traffic

A GEO can still be made up of traffic that behaves very differently from each other. GEO performance statistics may look okay even if one placement drives lots of revenue while another drives lots of clicks with no conversions.

For improving a GEO that is already known to perform well:

• consider performance statistics according to traffic source and placement;
• evaluate the performance difference between various creatives on placements;
• consider whether device mix influences monetization; 
• implement direct offers for audiences where performance can be predicted consistently;
• use Smartlink routing for more diverse traffic;
• expand placements based on consistent performance growth and volume increases.

Once a GEO proves itself as profitable, performance criteria based on source, placement, device, creative, and offer become more effective optimization options than country-level averages.

Example: Mobile-Heavy Traffic With Uneven Performance

If mobile EPM differs widely across devices or operating systems, start with the user experience before switching traffic sources.

See:

• landing/prelander page speed;
• visibility of CTA button;
• length of form;
• redirects;
• browser and OS compatibility;
• if final offer is targeted to device;
• if creative matches mobile landing experience.

If the technical experience is sound, move on to offer matching. Device segmentation will show the difference, and Smartlink routing will match eligible traffic with a better offer.

Example: Traffic That Does Not Fit the Main Offer

If the core works efficiently but cannot absorb part of the incoming flow, safeguard the successful route and build another to cover the rest.

For example, one could employ:

• the current core offer for the tested audience;
• Smartlink routing for complex or uncertain flows;
• other offers for unhandled GEOs or gadgets;
• traffic back or some other legitimate secondary route for the rest;
• tracking IDs that would allow assessment of the performance of each monetization channel separately.

The basic idea behind this method is obvious – improve coverage around the successful core, not destabilize it.

Common EPM Optimization Mistakes and Expert Tips

A lot of optimization mistakes are interpretation mistakes. Effective optimization means making changes that answer a specific question while leaving enough context to understand the answer. For instance, a sharp rise in EPM can be caused by a couple of profitable conversions instead of improved traffic quality. And vice versa: the fall in EPM can be due to changes in offer payouts, different traffic sources, or campaign caps.

Common EPM Optimization Mistakes

Do not fall into these common traps:

• Aiming for one day with high EPM. A single-day spike can come from just a few high-value conversions.
• Considering all traffic in one group. Aggregate averages can obscure both effective and ineffective segments.
• Selecting offers based on payouts alone. Other factors, such as relevance and conversion likelihood, may matter more.
• Changing too many variables at once. This makes attribution impossible.
• Not accounting for caps and offer status. A good segment cannot monetize via a closed offer.
• Thinking that high CR always equates to high EPM. Conversion value also needs to be considered.
• Overlooking tracking problems. Missing postbacks or ID information may skew performance metrics.
• Taking low EPM as evidence of fraud. Low monetization is a sign of something to investigate.

IAB Europe Digital Advertising Effectiveness Measurement Framework underscores the need for consistency and multiple metrics when measuring effectiveness. The same holds true here – one metric does not tell the whole story.

Expert Tips for More Sustainable EPM Growth

Pay attention to controllable factors and consistent decision-making:

• make like-for-like comparisons in traffic and decide which flow is better;
• keep source, placement, GEOs, and devices’ data identical;
• log all changes in offers, payouts, caps, and funnels used in testing;
• take care not to disrupt a good primary path with monetization experiments;
• discuss the issue with an affiliate manager in case something strange happens;
• don’t confuse quality control of traffic and its monetization optimization;
• consider such criteria as revenue, CR, clicks, and traffic quantity in your analysis of EPM;
• test scale only after you see that your result withstands enough variety of traffic conditions to become truly practical.

Adverten’s current advice on Smartlink’s performance includes similar recommendations for EPM, conversion rate, clicks, revenue, and segment analysis, not just total revenue.

Know When an Optimization Change Needs More Data

This does not apply to all campaigns, depending on the test duration and the number of conversions during the test period.

You must watch out for the following circumstances:

• the number of clicks on the segment is very low;
• a small number of conversions makes up the majority of the revenue generated by the segment;
• the latency of conversion is high;
• the composition of daily traffic on the segment changes dramatically;
• an offer or pay per conversion was changed during the test period;
• majority of changes happen due to only one ad placement;
• tracking issue occurs over the test period.

The higher the cost of a wrong choice, the more evidence you need. NIST guidance on design selection further emphasizes the same idea.

Avoid Changing Multiple Campaign Variables at Once

Affiliate marketing campaigns feature interacting variables, but changing multiple variables at once makes analysis difficult.

The structured test needs to:

• determine the main issue;
• state the variable whose change is intentional;
• state other variables that cannot remain constant;
• make use of consistent measurement before and after the change;
• make sure the observation period is sufficiently long to capture the conversion behavior of the campaign;
• state any exogenous event which would influence the results;
• verify that a success is replicable before it is considered the new baseline.

As NIST explains, when discussing testing one variable at a time, interactions between variables do count. Creative performance can vary depending on the GEO or device.

EPM Statistics and an Adverten GEO Performance Case Study

Below is the information for March 2023, not future 2026 predictions. Weekly winners shifted in just one month, and this is why the optimization of affiliates has to be based on the present state of affairs.

These historical records show how the EPM rating can shift over time. The GEO that won in one week could be much lower the following week, whereas some other GEO wins the next week. This information should motivate affiliates to analyze their results regularly, rather than relying only on previous results. Nevertheless, such numbers do not prove the reasons of changes and future potential.

Historical Adverten EPM Data From March 2023

Adverten published four weekly snapshots during March 2023. Each post listed three GEOs with the highest EPM for that week.

Publication date	Top GEO	EPM	Second GEO	EPM	Third GEO	EPM
March 1, 2023	Austria	$101	Australia	$95	USA	$94
March 15, 2023	Canada	$99	Norway	$98	Finland	$97
March 23, 2023	Finland	$101	Switzerland	$99	Austria	$97
March 30, 2023	Germany	$99	New Zealand	$97	Canada	$95

The original posts are available in Adverten’s archive for March 1, March 15, March 23, and March 30.

How Top-Performing GEOs Changed During the Month

This was true for the leader of the week in all of the snapshots provided:

• March 1: Austria was the leader with a $101 EPM.
• March 15: Canada was the leader with $99.
• March 23: Finland became the leader with $101.
• March 30: Germany became the leader with $99.

A few GEOs returned to other positions: Austria dropped from first to third, Finland moved up from third to first, and Canada also dropped from first to third. What matters is not the positioning, but the fact that the leader changed across all four published snapshots.

What Historical EPM Data Can and Cannot Prove

Several reasonable conclusions can be drawn from historical weekly EPM data:

• performance may fluctuate over time;
• GEO rankings are not static;
• recent offers and traffic environment conditions are relevant;
• repeat testing is better than a single test;
• context at the segment level is needed along with aggregate EPM figures.

The historical weekly EPM data cannot tell:

• which GEO is the “top” at the moment;
• which country will have the best future EPM performance;
• whether one GEO always has better quality traffic;
• whether a low-EPM GEO has fake traffic;
• how any other affiliate will do;
• why the rankings changed.

Historical data reflects past performance under past conditions.

Case Study: Why the “Best GEO” Changed From Week to Week

Observation: Four snapshots from March 2023 by Adverten created four different weekly leaders: Austria, Canada, Finland, and Germany.

Evidence: The top EPM published across the four snapshots ranged from $99 to $101, and some GEOs moved between first, third, and outside the top three.

Interpretation: Fluctuating rankings support the idea of a dynamic affiliate world where changes can happen for many reasons, including offer availability, payouts, conversion rates, audiences, caps, and traffic.

Limitation: There is no information about the source mix, device mix, number of conversions, or the reason for the change in ranking. The cause should not be imagined.

Lesson: EPM should be used to analyze and direct traffic, but it shouldn’t be applied as a fixed ranking for GEOs. Better to stay on top of your measurements, compare the same traffic, and make changes where needed.

Conclusion: Build Better EPM Through Better Traffic-to-Monetization Fit

The key to sustainable EPM growth is optimizing traffic, offers, and the funnel overall. The best affiliate traffic optimization approaches begin with identifying the problem in performance – it can be any of the following: GEO, device, source, placement, creative, offer availability, or monetization approach.

Smartlink routing works well with mixed traffic, while more mature segments with clear, predictable behavior may benefit from more targeted offers and placements. At the same time, creatives, prelanders, device experience, and tracking must reflect the same user intent. A secondary monetization approach may be used for traffic that can’t convert via the primary offer, but it shouldn’t distract from the main funnel.

EPM works best as a metric to complement other factors such as revenue, CR, traffic volumes, and current offer conditions. So affiliate traffic optimization solutions depend on context and don’t exist in a vacuum.

Affiliates working across multiple GEOs, devices, or placements should review how their traffic is segmented and routed. Adverten Smartlink service may become an option for broader traffic monetization with automated offer routing.

FAQ About Improving EPM in CPA Affiliate Campaigns

What Constitutes a Good EPM for a CPA Affiliate Program?

No single EPM works for every situation; it depends on factors such as GEO, sources, devices, payouts, and offers. To compare traffic monetization strategies, you should use your own historical EPM for similar traffic.

Can EPM Go Up If Affiliate Revenue Drops?

EPM can still go up even if traffic is decreasing, but it depends on how efficiently the remaining traffic is monetized. For affiliate revenue optimization, consider EPM along with other metrics.

How Can Payouts Influence EPM?

When payouts increase, EPM can rise too, even if conversion rate and traffic quality don’t change.

How Should Delayed Conversions Be Handled When Measuring EPM?

Delayed conversions can make recent traffic look weaker than it actually is. Make sure that conversions and postbacks have adequate time to be recorded before you compare recent and historic performance. Adverten provides real-time tracking and postbacks.

When Does Smartlink Optimization Make Sense?

You need Smartlink optimization strategies when you have traffic from different GEOs, devices, or audiences. Adverten Smartlink can distribute traffic across relevant available offers, while direct offers may work well with stable audiences.

Is It Possible to Have a Misleading EPM with an Extremely Small Volume of Traffic?

Yes. With a small volume of traffic, even one or two conversions may affect EPM significantly. No fixed minimum sample size exists for this purpose.

How Should EPM Be Used When Planning a New CPA Campaign?

Use EPM early as the campaign baseline and revise your conclusions as new information comes in. The best affiliate optimization strategies consider EPM together with other campaign metrics.

Can EPMs from Several Different Traffic Sources Be Compared Against Each Other?

Certainly, but with some prudence. Traffic sources may differ by the target audience’s interests, device type, location, and many other variables. For affiliate traffic optimization, compare similar traffic flows.

Does a Higher EPM Necessarily Mean a More Profitable CPA Campaign?

No, because EPM measures monetization efficiency; however, it does not account for acquisition costs or traffic volume. If the EPM value is low, it doesn’t mean the campaign isn’t profitable enough.

Can EPM Remain Stable While Campaign Performance Changes?

It can be, because EPM can remain constant despite changes in traffic mix, conversion, payout, and offer performance. That’s why you need to analyze EPM alongside other metrics such as income, conversions, traffic, etc.