What Claude's New Watermarking Means for Content Teams

What Claude’s New Watermarking Means for Content Teams

Claude now embeds invisible watermarks in generated text under the EU AI Act. Here's what it means for AI-assisted content, and why proofreading may trigger a mark.
Entity SEO: Why Ranking #1 No Longer Guarantees AI Visibility

Entity SEO: Why Ranking #1 No Longer Guarantees AI Visibility

Full disclosure: This post contains affiliate links. If you make a purchase through these links, 99signals may earn a commission at no additional cost...
GEO vs SEO: What Happens When AI Optimization Cannibalizes Organic Search

GEO vs SEO: What Happens When AI Optimization Cannibalizes Organic Search

A controlled A/B test found one GEO tactic would have cost 6.5% of organic sessions. Here's how AI optimization can quietly cannibalize your Google traffic.
The YouTube AEO Playbook: How to Get Cited in AI Search

The YouTube AEO Playbook: How to Get Cited in AI Search

61 of 71 SaaS brand channels earn zero AI citations while independent creators dominate. Here's how YouTube AEO works and how to claim the citations you're missing.
Why Most GEO Tactics Don't Work (According to Google)

Why Most GEO Tactics Don’t Work (According to Google)

Google's official guidance just named llms.Google's official guidance just named llms.txt, content chunking, and schema as unnecessary for AI search. Here's what the data says actually drives AI citations.
Google's AI Search Report Is the "Not Provided" Moment for GEO

Google’s AI Search Report Is the “Not Provided” Moment for GEO

Google's new Search Console AI report shows impressions but no clicks, queries, or competitor data. Here's why it's the "not provided" moment for GEO, and how to fill the gap.
The Hidden Cost of Scaling AI Content on Search and Social

The Hidden Cost of Scaling AI Content on Search and Social

Scaled AI content is getting penalized on Google and throttled on LinkedIn at the same time. Here's why volume-based publishing backfires, and how to audit your exposure.
Why Reddit Is the Most Important Brand Surface You Don't Control

Why Reddit Is the Most Important Brand Surface You Don’t Control

Reddit threads now appear in Google Business Profiles, AI Overviews, ChatGPT, and Perplexity. One thread can shape your brand across six discovery surfaces. Here's what to do.
Inside GA4's New AI Assistant Channel: What It Tracks and What It Misses

Inside GA4’s New AI Assistant Channel: What It Tracks and What It Misses

Google just added an AI Assistant channel to GA4's Default Channel Group. Here's what it tracks, what it misses, and the gaps you need to close before competitors do.
Why ChatGPT Ads Are the Fastest-Growing Ad Channel You're Not Measuring Yet

Why ChatGPT Ads Are the Fastest-Growing Ad Channel You’re Not Measuring Yet

ChatGPT Ads hit $100M in just six weeks with 600+ advertisers. Here's what makes this ad channel different, and why your existing attribution model can't track it.