Last week I released a project (Mine for Good) that provides a landing page for users to turn their browser into a crypto miner with the proceeds going to organizations supporting their chosen cause. Because the primary goal of the site is to create revenue to be passed through to these orgs, it got me thinking about how effective it is compared to other common website revenue paradigms. What follows is that analysis.
The calculations behind all figures held herein can be found on my GitLab
Before diving into the analysis of ad revenue vs mining revenue, let’s talk a little bit about different ways sites can make revenue:
So this post is geared towards just ads and crypto mining but obviously there are other paradigms. For the other paradigms, it’s pretty obvious that the revenue is tied directly to the sales so don’t think it’s useful to go any further there anyway.
According to Adstage, the average cost per thousand impressions (CPM) for an ad distributed via the Google Display Network (GDN) was $2.80. If we say that the GDN takes an ~10% cut of that then we can guesstimate that about $2.50 goes to the site that was actually displaying those ads.
adRevenueUsdPerThousandImpressions := 2.50 adRevenueUsdPerImpression := adRevenueUsdPerThousandImpressions / 1000 // $0.0025
So for each visitor, on average, we’re making something close to $0.0025.
Crypto mining is a little tougher to calculate as it depends not only on the number of site visitors but also on the amount of time that a user stayed on a site, the difficulty of mining the given cryptocurrency, the number of other miners out there, the power of each machine mining, and the going price of the corresponding token at time of conversion to your destination currency.
According to a 2017 study by Brafton, the average session duration is 2 minutes and 17 seconds.
averageSessionDurationSeconds := 137
At time of writing, CoinMarketCap has Monero (the coin my project mines) at $97.87 / coin.
cryptoTokenPriceUsd := 97.87
Using the climage change cause on my site as our test harness, my desktop gets ~50 hashes / second. My desktop is pretty good though so we should consider this to be on the upper end of what any visitor’s machine would be able to produce. For comparison, that same page on my phone (Pixel 3) gets ~6 hashes / second.
hashesPerSecondDesktop := 50 hashesPerSecondMobile := 6
I don’t think anyone in their right mind would go out and build their own mining pool for each of their sites so we’ll use a ready-made mining pool, Minero, to help us calculate how much we can actually get paid for browser-based crypto mining. As of the time of writing, Minero pays out 0.000064527455 XMR / million hashes. Note that they do take a cut but so do ad networks when they distribute ads and I feel like the cut (10% as of writing) is well worth not sinking the engineering resources into building and maintaining one’s own pool.
xmrRewardPerMillionHashes := 0.000064527455 usdRewardPerMillionHashes := xmrRewardPerMillionHashes * cryptoTokenPriceUsd usdRewardPerHash := usdRewardPerMillionHashes / 1000000 // 0.000000006315
Now to determine how much each visitor is worth to us, we have to combine our
hashesPerSecondX, and the
averageSessionDurationSeconds found earlier
valuePerVisitorCryptoMiningUsdOnDesktop := hashesPerSecondDesktop * usdRewardPerHash * averageSessionDurationSeconds // $0.0000433 valuePerVisitorCryptoMiningUsdOnMobile := hashesPerSecondMobile * usdRewardPerHash * averageSessionDurationSeconds // $0.00000519
So for each visit, on average, we’re making something close to $0.0000433 in the best case and $0.00000519 in the worst (worst case being they stay just as long but are viewing on a weak computer and thus can’t mine as well).
A cursory glance through the above calculations concludes that ads are obviously paying more per visit than crypto. How much more? ~58x more!
adRevenueUsdPerImpression / valuePerVisitorCryptoMiningUsdOnDesktop // 57.790348338797784
That’s even assuming the best case for crypto in which everyone who visits is running on a solid machine. In many cases, they’ll be using mobile phones or old hardware. In the case where all visitors are on their phone, the ads pay closer to 480x more than crypto alone!
adRevenueUsdPerImpression / valuePerVisitorCryptoMiningUsdOnMobile // 481.5862361566481
So we can see that ads are far and away better for monetizing the average session. Is crypto thus an infeasible path to revenue on the modern web?
Not necessarily. If we tweak some parameters, we might be able to get crypto back in the fight.
We can’t really change the market price of XMR or the kind of computer a user decides to visit us with but we can affect how long our user stays with us. This can be done in numerous ways - think a site that serves games or a site that mostly serves long reads. This helps us because the longer a user stays on our site, the more time we have to compute hashes resulting in a linear increase in our resultant revenue.
So let’s say we have a site that produces long form content and because our content is longer, we have an average session duration of ~10 minutes.
longFormContentSessionDurationSeconds := 600.0
This means that, for visitors on desktop, the average value per visitor is $0.00019.
valuePerVisitorOfLongFormCryptoMiningUsdOnDesktop := hashesPerSecondDesktop * usdRewardPerHash * longFormContentSessionDurationSeconds // 0.00018945906062549998
While still not as good as the ad generation of ~$0.0025, we got a lot closer. Instead of ads being ~58x better, now they’re at ~13x better.
Is this a win for crypto then? Certainly not. Recall that the 13x figure is when crypto is at its best - a user running a powerful computer to visit your site. If all visitors use mobile, then ads are still ~100x better than crypto mining.
In today’s internet landscape, it seems that browser-based crypto mining can’t really stand up to the revenue produced by ads. This makes sense as if it ever could, there would likely be a large influx of powerful machines to the mining ecosystem which would quickly lower the rewards of mining again.
For the average site, crypto mining doesn’t seem feasible and is likely more trouble than it’s worth. For sites boasting long-form content of some kind, it’s possible that crypto starts to make a little more sense if taken as a hybrid approach. In that case, it’s possible to increase prospective revenue by anywhere from 1-10% depending on the visitor’s machine. Just be sure to weigh the potential benefits with the downsides like increased load on your visitors’ machines and potential blowback if you mine without their consent.
In conclusion, crypto is likely not a great revenue paradigm for your site. If you can do ads, start with ads. There are some exceptions where crypto becomes a bit more appealing, but it still seems its effectiveness is limited to a complimentary capacity.
What this means for me is that I’ll be looking into how to incorporate ads on Mine for Good in the hopes of making it actually useful.
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Hi I'm Hamilton and I wrote / built this! I like doing lots of things, but mostly I like to build (and then share those buildings). Some things I'm currently building: art, software, and prose. To stay up-to-date with my latest buildings, subscribe to my email list or follow one of my many other accounts. #buildit #shipit #justhamit