SEO & Content 2026
Readers from ChatGPT:
where are they?
Search can go quiet while AI tools keep sending readers. Where GA4 counts them, where they leak out, and how to check.
AI Assistant
GA4 default channel (as of Oct 2026)
3
places AI readers leak to
~24 hrs
for a robots.txt change to reach ChatGPT search (OpenAI)
9 slides
2
Quiet search does not mean nobody is reading
2 / 9
Some readers skip the search box
and ask an AI instead.
They click a source link under a ChatGPT or Gemini answer. If you only watch search numbers, you never see them.
💡 Roughly half land in AI Assistant. The rest are elsewhere
3
GA4's AI Assistant channel
3 / 9
🤖
Part of the default channel group.
Covers ChatGPT, Gemini, DeepSeek, Copilot, Grok and similar
⚙️
Nothing to set up.
Acquisition → Traffic acquisition, Session default channel group
⚠️ Google has not published the full list of AI sources
4
Leak 1: AI Overviews and AI Mode
4 / 9
AI Overviews and AI Mode
count as Organic Search.
Google's help pages exclude both from AI Assistant. Search Console counts their link clicks as search clicks.
💡 Your search numbers already contain some AI readers
5
Leaks 2 and 3: Direct and Referral
5 / 9
🔗
No referrer means Direct.
In-app browsers, copied and pasted URLs
📋
AI tools not on the list can land in Referral.
Look for chatgpt.com, perplexity.ai, claude.ai in sources
✅ The AI Assistant number is a floor, not a total
6
Build your own channel group
6 / 9
🧩
Admin → Data display → Channel groups.
Copy the default group and add a channel
🔍
Condition: Source matches regex.
List the AI domains you found
⬆️
Place it above Referral.
GA4 files each visit under the first match, top down
⚠️ Two custom groups per standard property. They apply to past data too
7
Getting found: robots.txt
7 / 9
🔎
OAI-SearchBot is for ChatGPT search.
Opt out and you are not shown in its answers
📚
GPTBot is for training.
The two settings are independent
✅ Kingfin's robots.txt allows OAI-SearchBot
8
Checklist for finding your AI readers
8 / 9
1️⃣
Find the AI Assistant row.
Use more than 28 days
2️⃣
Scan sources for AI domains.
Note the leaks
3️⃣
Put your own channel above Referral.
With a regex
4️⃣
Line up landing pages.
Alongside sign-up clicks
5️⃣
Open robots.txt.
Are AI search crawlers blocked?
The AI Assistant number is
a floor, not a total
1
Some AI readers are hidden in Organic Search, Direct and Referral
2
Check sources and put your own channel above Referral
3
Make sure robots.txt is not blocking AI search crawlers
4
Write for AI readers to the same standard as for people
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