🔍 Core Updates: New link features in AI Mode and Reddit threads appearing GBP [11 May]


SEO tips and updates from Mark Williams-Cook​
Search with Candour hosted by Jack Chambers-Ward​

SEO updates you need to know


đź”—

​Google adds new updates to links in AI Mode and AI Overviews. These new features include more suggested links to further explore topics, hover previews for citations and highlighting links for users' news subscriptions.

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​Reddit threads are now being directly pulled into some Google Business Profiles on desktop, primarily for food and drink businesses via new “About this place” section.

🔍

​Google removes FAQ rich results from search. This is the final step in the three-year deprecation of FAQ rich results which began in 2023 when these rich results were restricted to just government and health websites.

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​The Google Search Console error from May 2025 has been resolved. This logging error affected impressions, CTR and average position and data will be fixed going forward but will not be retroactively updated.

đź›’

​Google expands UCP to main search shopping results. Users have reported a 'Buy' button on a product result page that connects directly to Google checkout without visiting the seller's website.

🤖

​Google tests Web Bot Auth, a protocol for verifying bot traffic. This is an experimental protocol at this stage so users will need to contact their web hosting providers to find out if the host platform will support Web Bot Auth.

đź“°

​Google explains if 'Preferred source' outweighs low-quality content for sites. The answer explains that it doesn't make sense to show spam to a user just because the 'Preferred source' button was clicked.

📇

​Bing explains the difference between indexing for search vs indexing for AI search. Microsoft stated "Indexing for grounded AI answers is not a reinvention of search – it is a major evolution of it. Grounding commits to an answer."

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Search with Candour podcast

SEO news recap: April 2026

Season 4: Episode 70

Jack Chambers-Ward delivers an SEO news recap covering key stories from April 2026 into early May.

He highlights Google testing AI Mode directly in the “All” tab, AI Mode’s agentic restaurant bookings, AI Mode side-by-side browsing in Chrome desktop (US), and Google’s Audio Overviews appearing on SERPs beyond Search Labs.

He also discusses Google’s official guidance on building agent-friendly websites, how agents use screenshots, raw HTML, and the accessibility tree, and notes Gemini in Chrome rolling out worldwide, potentially boosting Gemini adoption.

This week's solicited tips:

You hoped that agents would burn, instead I learned to control them

AI agents rely heavily on the accessibility tree (alongside raw HTML and screenshots) to strip away visual noise and understand page intent.
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Proper ARIA roles, labels, and semantic tags are critical visibility factors for AI systems.
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Luckily for you, Google has just published a new guide on building agent friendly websites, which I would put top of my reading list this week!

You think the world crying out for fresh content?

You're probably thinking about content 'freshness' wrong. The Google exploit I found strongly suggested Google views freshness as relative, not absolute ⤵️
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Parameters I discovered like "result_set_age_*_percentile_in_days" literally score a page's age against the rest of the result set, not the calendar.
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This means a 2014 page can count as 'fresh' if its rivals are older. Think evergreen topics like "how do I tie a tie." On the other hand, a 9-day-old "iPhone 17 review" is 'stale' if its rivals are 2 days old.
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How can you apply this? ⤵️
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Implement "age vs. SERP" into your content process.
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Pull the top 10 results' last-modified dates monthly for your priority queries and figure out if your page is drifting older than the percentile.
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That is your trigger to see if you can make a 'significant update' (which is another thing Google specifically tracks). This means rewriting sections, adding new data, or realigning the intent, not just a token comma swap.
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Google rewards meaningful change, not edited timestamps. Stop measuring your content's age in months; measure it against whoever is ranked above you. ⬆️

Tell me you're not some crazy ranking signals

For years Google has insisted CTR isn't a direct ranking signal, the Google ranking parameter exploit we found seems to confirm why ⬇️
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They don't use raw CTR, they use a click probability that's conditioned on context. The leaked field click_age_probability is the probability of a click given the document's age relative to what users expect for that query. Sat next to it is relative_click_order (where you sit in the click-ordered re-rank, not the initial rank) and dense_glue_trad_imp_mobile (a device and layout specific impression weight).
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That's NavBoost + Glue working as Pandu Nayak described under oath at the DOJ trial: a re-ranker sitting on top of Mustang.
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I have seen too many SEO teams obsessing over some kind of universally expected CTR. A 5% CTR at position 3 on a fast-moving news query can be under-performing against expectation, while the same 5% on a slow evergreen query is over-performing. Google compares your clicks to the expected rate for that query, that position, that device, that document age, not to a global 'benchmark'. Yes, this is one of the things that makes forecasting a nightmare, but that is another story đź“–
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It's also worth noting that the click needs to match expectation. There are whole layers of systems working to determine if the user was actually satisfied by what they found. This means clickbaiting or not following through with good content is a losing long-term strategy too.

We used to have an AI agent...you're just the substitute

There is no doubt for me that agents will be doing a lot of the leg work for informational and multi-faceted searches, so I am already looking at tooling up for this future.
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I have been checking out agentchecker.ai by Mersudin Forbes, which is using a lot of the techniques that Google's recent "how to build agent friendly" websites covered.
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It's neat having a live view of where the agent is, where it gets lost, and where there are fundamental issues; i.e. no contact form for agent to easily interact with the send a query.
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I want to make clear that nobody paid me for this post. I am genuinely exploring this tool, I have never taken payment for a post; and if I ever did, I would make it clear :)

Even if you use markdown, the Elder Gods can still summon you to waste your time

Providing .md markdown files for your website content is more than just a waste of time, it’s actually counterproductive ⤵️
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📔 Google’s recently published guide, 'Build agent-friendly websites', specifically mentions agents using screenshots, HTML, and the accessibility tree to understand your page. Guess what .md files don’t have? HTML, an accessibility tree—and screenshots of them are useless.
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✒️ Jono Alderson wrote an excellent piece back in February arguing that “a page is more than just a container for words,” highlighting that an HTML page is an editorial artefact that encodes hierarchy, emphasis, framing, and intent. Markdown files confuse the idea of extraction with understanding; making text easier to scrape isn’t the same as helping systems genuinely interpret what a page means.
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🧪 If that isn’t enough, Profound ran a controlled experiment showing no statistically significant impact from using markdown files.

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Core Updates SEO Newsletter

The Core Updates newsletter is written by Mark Williams-Cook, a veteran SEO who is Digital Marketing Director at Candour, Founder of AlsoAsked and organiser of SearchNorwich. Over 40,000 SEOs follow Mark's 'Unsolicited #SEO tips' on LinkedIn, which has now been wrapped up into the Core Updates newsletter, along with an overview of weekly news and the current episode of the Search with Candour episode, hosted by Jack Chambers-Ward.

Read more from Core Updates SEO Newsletter

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SEO tips and updates from Mark Williams-CookSearch with Candour hosted by Jack Chambers-Ward SEO updates you need to know 📰 Google brings Preferred Sources feature to AI search. This feature originated in Google Discover and allows users to choose their favourite websites to highlight in search. These sources can appear in AI Overviews and AI Mode. ❇️ AI Overviews appear for over 86% of prompts in Google's AI search. This is from a study of 500,000 prompts and, perhaps most importantly, is...

SEO tips and updates from Mark Williams-CookSearch with Candour hosted by Jack Chambers-Ward SEO updates you need to know 🔍 Google launches the Intelligent Search Box, the "biggest change to the search box in 25 years". This new version of the search box adapts to your query, expanding and offering new modalities more easily. 🛒 Google announces Universal Cart, an AI-powered omnipresent checkout experience. Universal Cart will work across multiple Google platforms to provide discounts,...