In 2015, I built my very first successful niche website: Avocadoo.com. It was in the health and fitness space and, believe it or not, it ended up making over $35,000 per month at its peak. Since then, I’ve gone on to create multiple niche websites—some of which have generated six figures per month—and I’ve sold most of them.
So when I say I know what I’m talking about, I really do. And no—I’m not here to sell you a $999 course or some "limited-time" guru package. What I am here to do is pull back the curtain on three very real websites that are making incredible money... even though they’re in topics that would bore most people to tears.
In this blog post, you’ll learn:
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Why “boring” websites are some of the most profitable online assets
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How each site earns money and what makes it work
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Whether or not you should build a similar site
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The best way to start your own site in 2025—without copying others blindly
A Quick but Crucial Reality Check: Making Money Online Is Hard
Before we get into the fun stuff, let’s set the right expectations.
Making money on the internet is not easy. And anyone who tells you it is probably wants your money.
There are countless videos on YouTube claiming you can start a niche site today and be earning passive income by next month. That’s not how this works. The truth is:
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You have to solve real problems for real people, and
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You must be stupidly consistent about it
Most of the sites you’ll read about here took years to grow into what they are today. They weren’t overnight successes. But they are real, and they prove that the model works—if you stick with it.
So with that mindset in place, let’s dive into the first example.
Website #1: JPEG to PNG – The Ultimate Low-Maintenance Cash Cow
URL: jpeg2png.com
Estimated Monthly Revenue: $25,000 – $51,000
Monetization: Display Ads
Launched: June 2015
Traffic: ~1 million visitors/month
Why This Site Works
Should You Start a Site Like This?
This site is the definition of simple. It exists for one purpose: to convert JPEG images to PNG format.
Now, you might be thinking, “Who cares about image formats?” Well, a lot of people do—especially designers, marketers, students, and developers. PNGs offer benefits like lossless compression and transparent backgrounds, making them useful in a wide range of applications.
And get this: the site earns up to $51,000 per month by just showing Google ads while people use this free tool. With an estimated CPM of $5 (meaning $5 for every 1,000 impressions), and over a million monthly visits, the math checks out.
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Solves a quick, common problem people have
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Extremely lightweight and fast
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Highly shareable and linkable due to usefulness
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Has had nearly a decade to build SEO strength
Honestly, probably not.
The SEO competition is fierce, and this site already dominates the space. Instead, you should look at the concept behind the site—a free, useful tool—and apply that to a niche you understand better or that has less competition.
For example, if you’re into podcasting, maybe you build a tool that converts audio files between formats. If you’re a teacher, maybe it’s a printable worksheet generator.
Website #2: UnitConverters.net – A Simple Site Solving Hundreds of Micro-Problems
URL: unitconverters.net
Estimated Monthly Revenue: ~$35,000
Monetization: Mostly ads, with room for more
Traffic: 4.3 million visitors/month
Why This Site Works
What Could Be Improved
Should You Build a Site Like This?
This site takes the “useful tool” concept and scales it up.
Instead of solving one problem, it solves dozens. Want to convert meters to feet? Kilograms to pounds? Celsius to Fahrenheit? This site does it all. It’s not pretty, but it’s extremely functional.
Despite having 4x the traffic of jpeg2png.com, it earns less revenue. Why? Because it doesn’t monetize as aggressively. Fewer ads means lower earnings—but also a better user experience, which may be intentional.
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Solves a huge range of very specific, niche problems
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Ranks for thousands of long-tail keywords
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Has high traffic volume due to broad utility
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Add more affiliate offers (e.g., calculators for tradespeople could link to tools)
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Segment users by intent and provide premium features or upsells
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Add retargeting or lead capture to maximize value from repeat users
Yes—but not exactly like this.
The key lesson here is that solving more problems = more traffic. Start by dominating a micro-niche, then slowly add adjacent tools and features. It’s scalable, SEO-friendly, and highly monetizable.
Website #3: WhatIsMyIPAddress.com – The 7-Figure Playbook in Disguise
URL: whatismyipaddress.com
Estimated Monthly Revenue: $100,000+
Traffic: 5–9 million visitors/month
Monetization: Ads + Affiliate Marketing (especially VPNs)
Why This Site Crushes It
The Real Takeaway
So… What Kind of Site Should You Build in 2025?
👉 Build a site around your interests or experience.
Final Thoughts: Take the First Step, Then Keep Going
This site is genius.
It instantly solves a very specific problem: show me my IP address. But then it goes a step further. It asks: Why are you looking up your IP address?
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Are you concerned about privacy?
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Want to access geo-restricted content?
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Trying to troubleshoot a network issue?
The site addresses all of these concerns with helpful content, and then recommends VPN services. These affiliate links generate recurring revenue every time someone signs up.
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Solves a high-intent problem instantly
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Aligns monetization with user psychology
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Uses affiliate offers that match the user's need
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Capitalizes on SEO, PPC, and direct traffic
Don’t just solve a user’s surface-level problem. Dig into the underlying reason they landed on your site, and build solutions around that.
This site doesn’t just earn from eyeballs—it earns from intent.
Here’s the good news: You don’t have to invent the next groundbreaking SaaS tool.
A better and more sustainable strategy—especially if you’re a beginner—is this:
Here’s why that works:
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You’ll enjoy the content creation process more
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You’ll naturally spot problems and opportunities in the space
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You’ll build credibility and trust with your audience
For example, let’s say you’re really into pickleball. You could start by blogging about gear, rules, tips, and strategies. As your content grows, you’ll start noticing trends in what people search for. Maybe they want to find local courts or players in their area.
Guess what? That’s exactly what Pickleheads.com did.
It now receives over 350,000 visitors per month and recently raised $2.5 million in funding. That kind of growth only happens when you truly understand your niche and what your audience wants.
The biggest reason people fail in this business isn’t because they picked the wrong idea. It’s because they never stick with it long enough to see results.
Let’s summarize:
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Simple websites can make serious money
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Focus on solving real user problems
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Build based on your own interests or expertise
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Start small, then scale based on what your audience wants
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Start today—because momentum matters
You don’t need a perfect plan. You need a starting point, a problem to solve, and a commitment to keep learning.
I’ve created hundreds of free tutorials and guides to help you along the way. If you’re serious about building an income-generating site, don’t wait. Start now.
