SEO & GEO Weekly · 2026-W43 · 2026/10/19
Google is feeding fake rankings to SEO tools
8% of SERPs served to trackers were fake, ChatGPT traffic "fell" on missing tags, and Google put a cart in Search.
Two of the numbers SEOs check every morning were wrong this week. Google is serving fake result pages to scrapers, so your rank tracker may show drops that never happened. ChatGPT links lost their tracking tags for a few days, so AI traffic looked like it fell. Meanwhile Google put a shopping cart inside Search, and some of the biggest sites started blocking AI agents. New this issue: the fastest-growing SEO and GEO skill packs, from our OpenSkills data.
1. Google is serving fake result pages to rank trackers
TL;DR Nozzle checked 27.5 million SERPs and found 8% came back "poisoned": a normal-looking page with most of the keyword's usual sites swapped out. It has been happening since last month.
Why it matters On a poisoned page the organic results kept 20.7% of the previous SERP's sites, against 88.5% normally. A tracked site missed the top 10 on 58.6% of poisoned pages, against 2.7% before. 77.9% of them were back to normal within three days. So a one-day drop in your tracker is more likely this than a real ranking change.
What people are saying
- Aleyda Solis summarised the Nozzle research: Reddit, Facebook, LinkedIn and Quora fill the gaps on fake pages, while YouTube and Yelp show up less.
- Cyrus Shepard: Google is deliberately serving fake results to scrapers, which affects AI crawlers as well as rank trackers.
- Sistrix now re-collects a keyword until a result passes several checks, so some keywords update less often.
- Glenn Gabe says clients are asking whether third-party trackers are still worth paying for. He also saw Ahrefs show a drop that wasn't real yet, then became real weeks later.
Do this Before you react to a drop in a rank tracker, check the same query's clicks in Search Console. If clicks are flat, wait three days and check again.
2. Your ChatGPT traffic didn't drop. Its tracking tags did
TL;DR ChatGPT-attributed traffic fell in several analytics datasets this month. Analysts traced it to ChatGPT links that opened without UTM tags. Lily Ray reported it patched by Thursday.
Why it matters Those visits were still happening, just filed as direct. AI traffic is hard enough to see without losing the one label it had. Bing Webmaster Tools now shows which topics you are cited for and how often. Google still shows no AI Mode click data, though AI conversations leave traces in Search Console.
What people are saying
- Search Engine Journal on why the drop looks like a tracking problem. Lily Ray had read the traffic was being counted as direct, then confirmed it is patched.
- Kevin Indig: Bing's new report on cited topics and grounding queries is "the closest we have to classic search data". On why Google won't tag its AI links, Lily Ray says that's "the entire reason they won't do it".
- Aleyda shared a study of 155 sites over 16 months: replies typed to an AI, like "yes please", now show up as searches, 21 times as often as 16 months ago, with a 2.9% click-through rate.
- On Reddit, one site owner found one question asked 389 different ways: 7,249 impressions, zero clicks.
Do this Annotate the ChatGPT gap in GA4 and compare referral plus direct for those days. Then verify your site in Bing Webmaster Tools and look at what it says you are cited for.
3. Google put a cart in Search. Big sites started blocking agents
TL;DR Google's Universal Cart is live in US Search and the Gemini app, built on the Universal Commerce Protocol. Around the same time, Delta, JPMorgan Chase, Charles Schwab and Yelp limited what AI agents can do on their sites.
Why it matters For stores, the cart means an agent can take a shopper from answer to checkout, so your product data becomes the storefront. Bill Hunt tested 122 Shopify stores: a store can look agent-ready by default and still fail on shipping, pickup or cancellation questions. And if sites start feeding agents bad data the way Google feeds scrapers, agents will recommend the wrong products at the wrong prices.
What people are saying
- Barry Schwartz on the US launch before the holiday season, and Search Engine Journal on how carts get to your store: checkout inside the cart, or a one-way handoff to your site.
- Bill Hunt's test of 122 Shopify stores.
- Glenn Gabe on websites closing their doors to agents, and Lily Ray: "This was entirely predictable".
Do this Ask Gemini and ChatGPT your own shipping, returns and pickup questions as a shopper would. Fix any wrong answer on the page it came from.
4. How Gemini and ChatGPT choose what to cite
TL;DR Resoneo analysed 222,753 Google searches made in 76,450 Gemini conversations. Gemini sorts your question into categories, expands it before searching, and cites Wikipedia and news sites most. It reads YouTube but rarely cites it.
Why it matters Every answer starts with sub-queries you can find and rank for. Self-promotion still works, but it is visible: in a study of 18,084 software questions, 34% to 47% of cited listicles were written by a vendor, and only 16% said so.
What people are saying
- Glenn Gabe on the Gemini study.
- Aleyda on Minuttia's listicle study: 87% of self-promotional lists rank the vendor first, and the top 20 vendors get only 6% of citations.
- A paper found OpenAI's API matched ChatGPT's cited sites more often than its exact pages, so API-based tracking tools are approximations.
- Nicholas Dulait's GEO list: pick 5 to 10 prompts, map the sub-queries each fires, and rank #1 on Google for each. Jake Ward's 6-step AI Overview SOP starts by saving the answer every day for a week.
Do this Pick 5 prompts your buyers would ask. Run each in ChatGPT, open the search trail, and write down every sub-query. Check where you rank on Google for each one.
By the numbers
From SeekWinners' US shopping-search sample: 3,072 category terms across 12 categories. This is our data.
- 62% of shopping terms show an AI Overview, up from 60% last week. Highest: Health and Beauty at 82% and Electronics at 81%. Lowest: Furniture at 35%.
- Reference sites take 20% of citations, against 13% for Shopify stores. Wikipedia is the #2 cited host in 10 of 12 categories, which matches what the Gemini study found (theme 4).
- YouTube is still the top cited host in all 12, with 21% of citations. Shopify stores do best in Apparel at 19% and worst in Vehicles and Parts at 3%.
Rising skills this week
The fastest-growing SEO, GEO and writing skill packs for Claude Code and other agents, ranked by install growth over 7 days on OpenSkills. This is our data. Security audits come from skills.sh.
- Humanizer (blader): 9,700 installs, +8.0% this week. Rewrites AI-sounding drafts so they read like a person wrote them. Audit: warn.
npx skills add blader/humanizer - GEO-SEO for Claude (zubair-trabzada, 15 skills): 11,937 installs, +7.3%. GEO audits, llms.txt generation and an "is this page citable by AI" check, run with parallel subagents. Audit: pass, with warnings on some skills.
npx skills add zubair-trabzada/geo-seo-claude --skill geo-audit - Matt Pocock's writing skills (4 skills): 1.8 million installs, +6.2%. The biggest pack here, and still growing fast. Turns notes into an article one beat at a time, plus a guide to writing CLAUDE.md and skill files. Audit: pass.
npx skills add mattpocock/skills --skill writing-shape - Claude SEO (AgriciDaniel, 33 skills): 163,185 installs, +4.2%. Site-wide audits with a scored fix list. Its local SEO skill grew fastest inside the pack. Audit: pass, with warnings on some skills.
npx skills add AgriciDaniel/claude-seo
How we rank: whole packs, not single skills, with at least 200 new installs in 7 days. We leave out packs whose skills all show near-identical install counts and no new stars.
Worth a click
- Barry Schwartz saw a spike in ranking volatility and chatter on Friday, and one prediction model puts a Panda-style update at 96.8% likely within a month.
- Meta's new terms let it crawl sites tied to business accounts and train on them, from October 30, with no opt out.
- Google moved inline links higher in AI Mode and AI Overviews, and still won't show click data for them.
- Google's Indexing API docs no longer explain how to get approval.
- Cody Schneider on building your own Ahrefs with Claude Code, DataForSEO, Search Console and GA4. Or self-host OpenSEO on Cloudflare.
- How Gamma reached 3.7 million monthly organic visits: localized homepages, public docs and template pages.
- Chris Simpson on why a blog is not a money page: every article exists to help a service page rank.
- A state parks directory launched in January now gets over 100K visits a month.
- Two agent tools: Firecrawl's Marketing Data Pack and an SEO audit skill with 251 rules.
From CiteCycle
Themes 1 and 2 are about data you can't trust right now. CiteCycle asks ChatGPT, Gemini, Claude and Google AI Overviews your buyers' questions every week, and records separately whether you were mentioned and whether your pages were cited. It doesn't depend on referral tags or a rank tracker scraping Google.