SaaS / B2B

How Porters Reduced Invalid Leads by 95% with Spider AF

Porters cut invalid leads by 95%, eliminating a peak of 100 fraudulent contacts per month and restoring the effectiveness of their display ad campaigns.

https://www.porters.jp/
Industry
SaaS / B2B
Company Url
https://www.porters.jp/
Region
Spider AF Product
-95% invalid leads
-95% invalid leads
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.

✓ No credit card required ✓ Setup in 30 min ✓ Cancel anytime

How Porters Reduced Invalid Leads by 95% with Spider AF

Porters cut invalid leads by 95%, eliminating a peak of 100 fraudulent contacts per month and restoring the effectiveness of their display ad campaigns.

Quotes

“Thanks to Spider AF, our display ads have become more effective.”

“A major deciding factor was the very manageable price of ¥30,000 per month, which made choosing Spider AF a simple decision in the end.”

Porters Corporation provides an application platform for HR business partners.

As head of marketing, Ms. Kusahara handles a wide range of duties, from lead gathering to sales. We asked her to tell us about her recent experience integrating Spider AF into her company's workflow.

Q. What are Porters Corporation’s marketing goals?

For lead generation, our goal is gaining a high lead (SQL, or Sales Qualified Leads) count; for inside business, it would be our appointment count. The definition of both is as follows:

Leads・・・Actions taken as a result of interest in a product. Leads can be seen as actions that turn prospects into proposals. These come from applications for information requests, free trials, etc.

Appointments・・・Appointments that can lead to business.


Q. Please tell us about your concrete advertising goals.

Although we do also try to attract seminar guests, we mostly try to generate leads. Our monthly budget for this is about ¥2,000,000. We use listing ads on Google and Yahoo, and display-type ads on Facebook and Instagram. Those four are our main advertising avenues.

Results Seen with Display Ads After Installing Spider AF

Q. What’s your most effective advertising medium?

Facebook is quite stable.

Our company is very particular to the business world, so randomly showing our ads to just any viewer doesn’t lead anywhere. In that sense, Facebook ads are a stable medium through which we can reach potential customers.

Recently, thanks to Spider AF, our display ads have become more effective.

Clicks Coming from Overseas and Businesses Who Won’t Pick Up the Phone


Q. May we ask you what issues you felt were present in your advertising distribution?

Certainly. From around April of 2021, we began to experience an increase in invalid leads and CVs. Then around May, it hit me that what we were going through was likely the work of bots… When these metrics all began to increase rapidly, I started to investigate what could be done about it.

Although I’d never even heard of ad fraud, I ended up learning that such a thing did in fact exist. Once I realized that Spider AF’s tools might be the answer to our problems, I got in contact.


Q. When did you figure out you were dealing with fraud?

Time and again, we’d make calls and get no response. At first glance, it seemed like a normal part of customer outreach, but once I looked into it, I realized these contact requests were coming from overseas. Our company displays regions via MA (marketing automation), which allowed us to realize these were likely requests for follow-ups coming from beyond Japan.

There were also cases where random lists had been put together of shops in specific neighborhoods. The shops, names, and phone numbers certainly did exist, but it seemed like the names and numbers corresponded to real entities, while the personal names had been added to the lists separately. We decided there had to be some sort of malicious intent behind it all.

There were even periods when we received these kinds of malicious contacts via our ads more than 100 times in a single month…

Q. I see! Just how much do you think this was occurring each month?

At the peak, we were dealing with about 100 cases of invalid leads a month. When I realized that it was all coming from our ads, I felt pretty horrified. Our lead territory is divided between enterprise and SMBs. Small-scale leads are taken care of in the field, whereas large-scale leads are handled internally. Either way, someone has to put in the hours.


Q. Sounds like a heavy workload. How many hours per month do you put aside for all this?

I’d say we usually check our leads for about 20-30 minutes per day.

When I first suddenly realized how odd this all seemed, I still felt it wasn’t something I needed to pursue, so at first we just worked around it, wasting an awful lot of time in the process. And since I was the one who had to check everything, those man-hours were actually my own.

But once it was clear that the attacks were coming through our ads, I started searching for potential solutions based on a new word: Ad fraud.

Deciding Factor in Adopting Spider AF


Q. Before installing Spider AF, you were thinking about working with other solutions, but…

That’s correct.  We reached out to a few different options via contact requests or forms. In the end, however, the only one we went all the way to a trial period with was Spider AF.

Another major deciding factor was the very manageable price which made choosing Spider AF a simple decision in the end.

We hadn’t really placed an upper limit on the amount we were willing to spend on software adoption. But since we thought the damages were around $1,000 USD, we decided that should probably be the ceiling.

Results of Installing Spider AF | Detecting $1,100 USD of Wasted Ad Spend

Q. These results happened during your 7-day trial period. What did you think when you saw the actual data?

I remember that I wasn’t surprised, like, “It was that much?” What I actually felt was more like, “Ah, so it really was true.” I had only seen the CV data, so I couldn’t speak to anything else. But since I didn’t know how much ad fraud was coming from clicks without CV, I’m glad I was able to have the actual ratio shown to me.

▲ Executive summary data from the end of May, 2021〜beginning of June, 2021

・Results of installing Spider AF: Breakdown of $1,100 USD (Corresponding to approximately 12% of advertising expenses)

  • Invalid access costs: $730 USD × Blockablity at 83%
  • Invalid placement amount: $560 USD × Blockablity at 100%

・How invalid access costs are calculated

  • 65 cases of invalid accesses over 7 days (12.45% of the whole)
  • Calculating the total amount of damage, $185 USD → $740 USD per month

Results of Installing Spider AF | Invalid Leads Reduced by 95%

Q. We see that invalid leads were reduced by 95% before and after introducing Spider AF. Was your sales staff’s workload reduced as a result?

My own workload was made considerably lighter. Since our ads are distributed the same way throughout the whole company, our entire team really felt the impact of the reduced workload.

Results of Installing Spider AF | Valid CPA Improved by 15%


Q. At a glance, the data for this section looked pretty low before you adopted Spider AF…

That’s correct. Although a CPA of $40 USD may look low at first glance, when you narrow it down and focus on valid CPA, it was actually $50 USD. I think it’s a little lower now, at around $300 USD.

Q. So improving CPA is a pretty difficult hill to climb?

I do think it’s difficult. Although I had focused on leads and rarely paid attention to CPA, when it ended up being worth more than $500 USD, it was hard to avoid feeling like, “Well, I guess I do have to try something out here.”

Q. By the way, do your clients take responsibility for making those minute adjustments?

We decide the unit price, keywords, targeting policy, etc, on our end. We leave the adjustment details about spend and the intricacies of daily operations to our clients.  


Q. I suppose you must still come in contact with some detailed metrics, despite the cooperation you have from your clients. Do you have someone knowledgeable on the topic in-house?

No, not particularly. I do, however, feel it’s important that we can understand the reports we receive from our clients, so I do the checking myself. I think that we need a process by which we can really put our minds to work regarding how to increase the amount of leads we generate.

Q. Since marketing at your company includes inside sales, it’s important that the person in charge of managing ads set the KPI, correct?

Yes, that’s right. We have our KPI set as SQL (Sales Qualified Leads), so right from the off, invalid clicks aren’t counted within our system. If the right person (in terms of normal personal information) comes around, we still don’t count them if they’re from the wrong business sector, and so on. I feel in that sense that our work is being carried out in a fairly substantive way.

Q. How do you currently use Spider AF?

I feel a bit apologetic having to say this, but we don't actually do all that much in terms of operating your solution. The reason for that is pretty simple: at this point, we hardly deal with any invalid CVs.  When we do occasionally get one, we simply ask your company to perform an IP block and that’s usually all it takes to solve the problem.

The Most Effective Consequence of Implementing Spider AF Is Being Able to Block Invalid CVs

Q. Could you tell us about the biggest change you’ve seen since adopting Spider AF?

The eradication of invalid CVs. At the peak of the problem, we were easily dealing with more than 100 cases of invalid CVs, but in September, we only had five—quite the difference. We hadn’t even noticed them until last year, meaning we must’ve wasted an enormous amount of both money and effort in the past.

Q. Finally, could you tell us about anything you’re considering in terms of future strategy?

Our company needs to take on anything from small-scale projects to enterprise clients, but we’re especially interested in gaining more big-name clients. We're in the midst of changing our LP and messaging for both small/large scale, and we’re also working on switching up the creative side of the ads themselves. We’d like to achieve all these goals in the near future.


Thank you very much for today! Please leave us with a final message, if you would.

Following Spider AF’s Introduction, Porters has Been Highly Rated for its Detail-Oriented Support

If you're reading this and you’re in the human resources business, please feel free to reach out to us. Our HR business cloud serves to improve operation for employee sourcing and dispatch, and given our highly positive evaluation from current customers, we’d love to hear from you if you’re interested in our services. Our consultants will give their all to provide plans for the improvement of your business environment. For more information, please see our homepage.


Porters Corporation supplies application platforms for human resources businesses.