Educational library
AdSense Tips & Tricks
How Google AdSense works today, and how to set a site up for it properly.
Google AdSense lets site owners show ads supplied by Google's advertiser network and take a share of the revenue. It launched in 2003 and it is still the most accessible entry point to display advertising, because there is no minimum traffic requirement to apply and no cost to join.
Two things about AdSense are widely misreported, including in a lot of material still circulating online, so they are worth stating up front.
First: AdSense is no longer paid per click. At the end of 2023 Google moved AdSense for content to a per-impression model, in line with the rest of the display advertising industry. Publishers earn a share of revenue based on impressions, and the reporting metric that matters is RPM (revenue per thousand impressions), not CPC. Any guide still telling you to optimise for clicks is out of date — and optimising for clicks was always a policy risk anyway.
Second: the auction is first-price. Google moved AdSense from a second-price to a first-price auction in 2021. The winning advertiser pays their bid.
The other honest thing to say: AdSense revenue on a small site is small. Earnings scale with traffic volume, audience geography and advertiser demand in your subject area, and none of those respond to ad-layout tweaks nearly as much as they respond to having more of the right readers. AdSense is a way to monetise an audience you already have. It is not, on its own, a business model.
This library covers what is stable and verifiable: how the money works, what Google requires before approval, what to build, how to apply, and how to place ads without breaking policy. Every platform-specific claim here is checked against Google's own AdSense Help documentation, which is the only authority worth trusting on this — and which changes, so check it yourself before you act.