This week in search October 30, 2026

On Reddit’s earnings call, CEO Steve Huffman said Google referrals fell by more than a million a week in October as searches moved into AI Mode and AI Overviews, and that AI Mode sends traffic to nobody as far as he knows. Reddit will test requiring a login outside the US. Huffman called it a fundamental shift in how Google works, and blamed AI answers for part of the drop.

Google’s search revenue grew 12 percent in the third quarter, down from 19 and 17 in the two before it, and Philipp Schindler named lower monetization in AI Mode as one reason, with no figure attached. The same day Google expanded ads in AI Mode to ten more countries and added ads to follow-up questions in the US. Expect more sponsored results inside AI answers.

Google plans to support a shared robots.txt signal that lets a site state its AI training preference once for every participating AI company, based on a standard in progress at the IETF. Today you have to name each crawler separately. Google aims to support it with other providers in 2027, and the existing Google-Extended control keeps working alongside it. The AI agent readiness guide lists which crawlers follow the file today.

Ahrefs asked five AI tools the same questions daily for 20 days. Roughly half to 80 percent of the sites cited on day one were gone the next day, and only a few percent held on for all 20 days, though most of the churn came back within the study. The takeaway is to track citations over a rolling week and ignore any single missing day.

Cyrus Shepard used the new Search Console controls to pull one site out of AI Overviews and AI Mode, then switched them back on. He estimated the AI impressions were worth a click-through rate of about 0.9 percent, and found regular organic clicks fell while the AI features were off. It is one site over a short window, as Barry Schwartz notes, and he says he has seen no one else publish data like it.

Rank trackers spiked on Saturday, October 24 and again on Tuesday, October 27, with publishers reporting weak News and Discover traffic. Google has not confirmed an update, and its status dashboard has no entry after the September spam update. Check Search Console before trusting any third-party chart this week, for the reason in the next story.

Ahrefs says some automated requests to Google now get a results page that looks normal but differs from what a person sees, affecting 5 to 20 percent of results depending on the provider, and Semrush confirmed the same on October 27. Both have added filters. If a ranking move in a tool looks odd, compare it with Search Console before acting on it.

Google opened a preview of its Connected Apps Platform, where a developer builds an app once and it works inside both Google Search and the Gemini app. Connected Apps already handle tasks such as ordering groceries and making playlists. More than 50 have launched across the two, and Adobe and Peloton reach Search in the coming weeks. Search Engine Roundtable notes a user has to enable an app in Search settings first.

Google’s user-generated spam guidance now covers any platform that lets users publish shared pages, generated content or web apps. It tells those platforms to keep link-only pages out of the index by default and to watch Search Console for spikes that do not fit the product. Search Engine Roundtable reports SEOs reading it as aimed at AI site builders.

In a Halloween video, Gary Illyes and Cherry Prommawin said a missing page carries no penalty, uses no crawl budget and does not hurt the pages around it. Redirect a dead URL only when a replacement page exists, otherwise leave the 404 or return a 410, and make the 404 page useful. The response codes that do matter are 500 and 429, which make Google slow its crawling.