What changed in AI search, 7 to 13 November 2026

ChatGPT ads bidding with cost targets

OpenAI’s help article on ChatGPT Ads bidding says Target CPA replaced Max Bid for new conversion campaigns on 9 November 2026, and Target CPC became available for new click campaigns. Max Bid and Max CPC retire for existing campaigns on 1 January 2027, and Maximize Results is now Intelligent bidding. OpenAI warns that weak or missing conversion signals can leave budget unspent, so a shop on ChatGPT ads should first confirm its OpenAI Pixel or Conversions API sends real events.

Traffic to the open web

Rand Fishkin, CEO of SparkToro, published Similarweb data on the top million websites on 10 November 2026. Their traffic peaked at 2.243 trillion visits in Q1 2022 and was 12.2% lower in Q3 2026. Web users grew from 4.95 billion in Q4 2021 to 6.15 billion in Q3 2026, per DataReportal, so visits per user fell 29.2%. Traffic now shows less of what visibility earns, so the count to trust is asking every new customer how they found the company.

Google’s November core update

Google released the November 2026 core update on 10 November 2026, according to its Search Status Dashboard. The update applies globally and to all languages, and Google says the rollout may take up to 2 weeks to complete. Retrieval for AI answers begins in search indexes, so a brand whose Google rankings move during the rollout should compare its citations in Google AI Overviews and AI Mode before the update and after the rollout ends.

Moving a site to a CDN

Google’s Search Central blog of 11 November 2026 says Google speeds up crawling once a site’s DNS points to a fast CDN. A new CDN’s cache is empty, so the first request for each URL reaches the origin server. A CAPTCHA from blanket bot protection stops Google’s crawlers, and pages begin to drop out of Search. The same rule shuts out the AI crawlers a brand allows, so the CDN team should exempt verified bots and pre-warm the cache.

How often people see ChatGPT ads

Seer Interactive’s UX team reviewed 161 recorded AI search sessions from nine usability studies run from March to September 2026, and published the study on 12 November 2026. In 5 of the 6 verticals where Seer tested a branded task, the branded prompt drew a sponsored card for another company. Every Plus and Pro session was ad-free. In the two studies that asked, 7 of the 12 participants served an ad said there were none.

Seer counted the ChatGPT users who saw an ad inside an answer:

The count went from 2 of 22 ChatGPT users in March to 17 of 46 in May and June and 12 of 19 from July to September. ChatGPT ads sit under the answer, and more than half of the people served one missed it, so the answer itself stays a brand’s first job.

Search Console generative AI report bug

Google’s Search Console data anomalies page says a logging error lowered the impressions shown in the Generative AI performance report in Search for 9 to 11 November 2026. The same page lists an earlier logging error in that report for 13 to 17 August 2026. A brand that compares AI impressions week on week should mark those three days as a gap. Impressions are an intermediate number in any case, and measuring AI search revenue shows the result.