Diggity Marketing Blog: SEO Testing Results & Case Studies

Welcome back to another roundup of the top news in digital marketing. In addition to some big stories, this month’s roundup features insightful work from some of the speakers headlining CMSEO 2025. Check out their work here and their presentations at the upcoming conference!

First, you’ll learn what’s possible by scaling AI. You’ll also learn how to adapt when Google tries to kill your traffic, and what an insider says about using Google Sheets for more effective SEO.

There’s plenty more after that. You’ll learn how one site owner built (and hosted) four websites with one AI prompt, the latest techniques to master on-page SEO, and how to force more engagement with YouTube audiences. Read more »

This month was huge for marketing, with big SEO, AI, and ad changes. In the top stories of the month, you’ll learn about the completion of the last core update, stats on the behavior of AI assistants, and what it may mean that Amazon has stopped spending on Google ads.

After that, you’ll learn why AI search traffic is ignoring mobile strategies and see some of the results of some of my own fun experiments with AI SEO. You’ll also discover why brands dominate AI mode but seem to struggle in AI Overviews.

At the end, you’ll learn why Google CTRs are crashing and how to avoid penalties with programmatic SEO. Let’s jump in! Read more »

You shouldn’t miss anything that changed for SEO, AI, LLMs, and more last month. First, you’ll learn about the most recent Google update, the steps Cloudflare is taking to fight scraping, and the results of a major AI-SEO test.

After that, you’ll catch up on why Google has de-indexed millions of pages, and get some perspectives from major SEOs on the future of LLMs, the state of link building, and how Google’s search share is holding up against AI.

At the end, you’ll find the headlines on Google’s direction. There are fresh numbers on the performance of overviews, new features for Google Ads, and fresh moves from the company to avoid hefty fines in the EU. These changes may affect you. Read more »

In the top stories for the month, you’ll learn about Google’s new AI Mode for search (and whether it’s the SEO apocalypse some fear), the big announcements made at the I/O 2025 Keynote, and the results of a comprehensive test of AI Overview’s brand visibility factors.

After that, you’ll learn how to use the new AI Max tool released for Google Ads, get the latest updates on the zero-click trend, and find out the results of the landmark antitrust case against Google.

There are even more stories after that. The roundup closes with some early guides for the new tools and features you’ll learn about, and announcements Google has made about the future that you shouldn’t ignore. Read more »

Stay ready for the big changes coming from all sides for SEO, AI, ads, and more. We’ve got the latest news for you in one place.

First, you’ll learn about a major ruling against Google that found it to have an illegal ad tech monopoly. Then, you’ll see some of the latest research on how AI overviews affect your clicks, and find out what the new launch of AI mode for all searchers means.

After that, you’ll catch up on the most interesting arguments from the SEO community this month. Is Google stealing your traffic? Is the new ad double-serving policy what it seems? Are those changes really worth A/B testing? The pros have opinions! Read more »

A major core update is just the start of the SEO, AI, and Google Ads news that came down this month. SEO is changing in big ways, and you’ll need to know how AI and other players are involved. Catch up in this month’s update.

In the top three stories, you’ll get confirmation that the March update is finished, find out what the latest updates mean for content publishers, and get some insight into why Google may now be discouraging small forums.

That’s just the beginning. You’ll also get the latest news about Google’s new Ad rules, the outcome of their big advertising lawsuit, and how AI is a growing presence in site traffic. Then, you’ll see some shocking proof that SEO isn’t dead, and learn about Google’s big ad deal with Roblox! Let’s jump in. Read more »

Kevin Indig brings you his personal analysis of 19 other deep appraisals of AI overviews and compares the outcomes. He synthesizes what the experts found into key points you can apply to your SEO.

He organized the insights he compiled according to how they answered the following questions:

He takes you through how the collection of studies answers these questions. For every claim, you’ll see a list of what each relevant study found so that you can compare them against one another. Read more »