Ad Tech

F@N Communications Reducing Ad Fraud Detection Time By 80%

F@N Communications cut ad fraud detection time by 80% across Japan's largest smartphone display ad network, nend, serving over 700,000 sites and apps.

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Ad Tech
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Spider AF Product
-80% fraud detection time
-80% fraud detection time
ROAS improvement
14 days Time to first insight
The Challenge

Budget disappearing with nothing to show for it

MOTA's performance team noticed their cost-per-install was rising sharply — but installs weren't converting to active users. Something was eating their budget.

  • Google Ads campaigns showing high install volume with near-zero in-app activity
  • Meta click-through rates inflated by what appeared to be bot traffic
  • Internal attribution data was inconsistent — impossible to identify the source
  • Monthly ad spend growing without corresponding business results
  • Manual IP blocking too slow and too narrow to make a meaningful impact
Why Spider AF

The only platform built specifically for ad fraud detection

MOTA needed more than a generic analytics tool. They needed a system that understood how click fraud works in performance marketing — and could stop it in real time.

01

Real-time invalid traffic detection

Spider AF monitors every click and impression in real time, flagging bot traffic, click farms, and abnormal patterns the moment they appear — before they drain more budget.

02

Direct Google & Meta integration

Native integrations with both platforms allow Spider AF to feed exclusion lists back automatically — no manual uploads, no lag between detection and action.

03

Transparent fraud reporting

Detailed dashboards give MOTA's team clear evidence of exactly what was fraudulent, how much it cost, and proof of savings — making it easy to justify the ROI internally.

The Approach

From blind spots to full visibility in four steps

01

Connect & audit

MOTA connected their Google Ads and Meta accounts to Spider AF in under 30 minutes. Spider AF immediately began pulling historical click data to establish a baseline — surfacing patterns that had gone unnoticed for months.

02

Identify fraud sources

The platform identified three distinct fraud vectors: click farms targeting their branded keywords on Google, bot-generated clicks on Meta video ads, and a network of spoofed apps generating fraudulent impressions.

03

Deploy exclusion rules

Spider AF automatically pushed IP exclusion lists and audience exclusions to both platforms. Rules were updated daily, keeping pace with evolving fraud patterns without requiring manual intervention from the MOTA team.

04

Monitor & optimise

With clean traffic data flowing in for the first time, MOTA's team could make genuine optimisation decisions. Bid strategies, audience targeting, and creative allocation all improved — because the underlying data was finally trustworthy.

The Results

Campaign performance before & after Spider AF

Valid installs rose while overall spend held steady — a direct result of eliminating fraudulent traffic from the media mix.

Monthly cost-per-install trend (JPY)

Before Spider AF After Spider AF
¥3,000 ¥2,000 ¥1,000 ¥0 Spider AF deployed Jan Feb Mar Apr May Jun
Pre-deployment average: ¥2,840 / install Post-deployment average: ¥940 / install

"We knew something was wrong, but we had no way to prove it. Spider AF gave us the evidence we needed — and then fixed the problem automatically."

Takeshi Yamamoto
Head of Performance Marketing, MOTA
The Outcome

Clean data. Real results. Confidence restored.

Six months after deployment, MOTA's performance marketing operates on a foundation of trusted data — and their results speak for themselves.

With invalid traffic eliminated, MOTA reallocated ¥2.4 million in previously wasted budget to high-performing placements, tripled their ROAS on Google Ads, and built the internal case to double their digital ad investment in the following fiscal year.

Frequently Asked

Questions about Spider AF for performance marketing

Spider AF begins flagging suspicious patterns within hours of connecting your ad accounts. Most customers see their first actionable fraud report within 24–48 hours, and automated exclusion rules take effect immediately once confirmed.

Yes. Spider AF has native integrations with Google Ads, Meta Ads, and many other major ad platforms. Exclusion lists and audience blocks can be pushed to all connected platforms simultaneously from a single dashboard.

Yes — and that's the point. Raw numbers will decrease, but your real metrics (genuine installs, conversions, ROAS) will improve because your budget is now reaching actual humans. Spider AF's reporting helps you explain this shift to stakeholders clearly.

Absolutely. Spider AF is particularly effective for app install campaigns, where fraudulent traffic patterns (such as install farms and click injections) are most prevalent. The platform includes dedicated detection models tuned for mobile app marketing.

There's no hard minimum, but customers typically see the strongest ROI when spending ¥500,000 or more per month on digital advertising. Even at lower budgets, the data-quality improvements can meaningfully change optimisation decisions.

Is click fraud eating your ad budget right now?

Most companies don't know how much they're losing until they measure it. Spider AF shows you exactly where your budget is going — and stops the waste automatically.

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F@N Communications Reducing Ad Fraud Detection Time By 80%

F@N Communications cut ad fraud detection time by 80% across Japan's largest smartphone display ad network, nend, serving over 700,000 sites and apps.
nend – Business Division Project Manager - Mr.Kenjiro Asami

Q. Please tell us about your company’s background and business.

F@N Communications, Inc. was established in 1999 with this year being our 18th in the business.

We develop a variety of internet advertising services with our business split up into 2 large divisions – CPA and CPC type advertising services. CPA type advertising service deals mainly with “Affiliate advertising (A8net)” while CPC type of advertising service deals with “Ad network (nend) and DSP (nex8)”.

Each division has different billing systems and target customers but what all services have in common is “Providing an advertising system that allows both sides to become wi-win based on the advertisers’ performance goals and platform provider’s earnings goals”.

Amongst those, we adopted Spider AF in our nend service that is aimed at ad networks for smartphones.

Currently there is about 700,000 smartphone sites and applications on nend, making it Japan’s No.1 smartphone display advertising service by scale.

Q. Please tell us about the problems/issues you were having before you introduced Spider AF.

There were 3 issues we were having.

The 1st one was “Fraudulent media was beginning to increase from the 2nd half of last year, with this year seeing a dramatic increase”.

The 2nd was “Fraud patterns this year have gotten diverse”

And the 3rd reason was “We had fraud detection in place but it was getting personalized and taking up a lot of man-hours”

Q. What kind of expectations did you have for Spider AF prior to the introduction?

Since Phybbit is originally a company that used data science as a strength, we could use data to “automatically detect and identify fraudulent media”.

We were honestly very concerned in the beginning. We’ve used data analysis from outside company’s a number of times already but no matter how impressive their technology was, they had difficulties understanding how our company’s business worked… For our company, we have an idea of creating a service that doesn’t compromise on even the smallest of details. So up until now, there eventually ended up being a lot of cases where we would do everything.

Q. Among the services provided in Spider AF, what was the deciding factor that caught your attention and made you want to go with Spider AF?

The deciding factor in the beginning was the people. I think there are a lot of company’s out there with strong technological capabilities, but Phybbit was kind and there were both sales and engineers on their staff that listened to our concerns.

Before introducing Spider AF, we would usually show our fraud detection and identification to the people in front of us but, particularly with the engineer, Eurico, we were surprised by the amount of questions she was asking like “Why did you look there?” or “What kind of value is that?”.

Then when the trial version came out, we were shocked!

Even still, I thought we had accumulated a considerable amount of know-how on fraud and identified fraud through multiple preparations, but we were surprised when we accomplished all of this with the Plus α function(content analysis, credibility of domain information, etc.) including the automated work that we were doing.

Q. When you were introducing Spider AF, did you have any difficulties/concerns? How was it solved?

What we were concerned about was what we talked about earlier – understanding our business.

Then, fraud patterns as well as new ones kept frequently popping up – dealing with that flexibly was a concern. If we’re talking about difficulties, I thought it would have been good to more properly compile a database of our work.

I think that the important thing after analyzing data is, compiling up the step by step work into a database, and then putting together the correct algorithm.

Q. What was it actually like when you gave Spider AF a try? Did it solve any of the problems you were having before?

The results were huge. It shortened the period for identifying fraud into ⅕ of what the original time was, and it’s been extremely helpful in finding new fraud media.

The accuracy of the detection logic is also a good feature, but I think that how all of the info I want to confirm is gathered on the dashboard on one easy to understand page is what’s helped shorten the amount of time for tasks.

Together with this, coupled with the detection and identification flow that we’ve set up for finding new fraud patterns, we’ve accumulated a lot of know-how from all of this.

Q. We would like to ask you about the support you received before and after introducing Spider AF. How was Phybbit’s support (engineers/sales)?

In any case, the support has been fast and helpful. Usually we’ve been communicating on Slack and the responses and correspondence has been fast.

Whenever we find a new fraud pattern with a large impact and say that we would like to have a discussion asap, we’ve been glad that they take the time to answer us immediately.

Q. If there was one thing you could tell those thinking of introducing Spider AF/companies who are considering Spider AF, what would it be?

We introduced Spider AF as a provider of ad networks that does fraud detection, but I think that this is a topic that affects not only advertising agents, but also advertisers, platform providers, and all layers.

In order to protect advertisers precious budgets and protect the credibility of the platform provider’s impressions, I think it is important to use the respective data obtained and tackle the problems.

When you do that, Spider AF offers not only the quality of the service itself but also the logic suited for each service. Because of that, I can recommend this product to any operators that provide internet services.

Q. Finally, could you tell us about your company’s thoughts on ad fraud and how you will tackle the problem of ad fraud in the future?

Because we are developing an advertising platform where advertisers and platform providers can feel safe to use, from now and into the future, we will be heavily cracking down on fraud. As I mentioned at the beginning, there is a rapid increase in fraud this year, and I think it still accounts for about 1% to 3% in Japan, but there are also sources saying that fraud accounts for 20% of all activity globally. Looking at recent circumstances, I think that even in Japan there is the possibility that it will increase that much.

In addition, I think that we can not eliminate the fraud itself even if only we are taking measures, so I think that it would be better if we could take the initiative to involve the whole industry more. If all ad agencies can use Spider AF to create a system that allows them to share illegal media and users, it may be possible for Japan alone to eliminate fraudulent ad transactions worldwide.