Google Bans Back Button Hijacking, Agentic Search Grows – SEO Pulse via @sejournal, @MattGSouthern

Welcome to the week’s Pulse: updates affect what Google considers spam, what happens when you report it, and what agentic search looks like in practice.

Here’s what matters for you and your work.

Google’s New Spam Policy Targets Back Button Hijacking

Google added back button hijacking to its spam policies, with enforcement beginning June 15. The behavior is now an explicit violation under the malicious practices category.

Key facts: Back button hijacking occurs when a site interferes with browser navigation and prevents users from returning to the previous page. Pages engaging in the behavior face manual spam actions or automated demotions.

Why This Matters

Google called out that some back button hijacking originates from included libraries or advertising platforms, which means the liability sits with the publisher even when the behavior comes from a vendor.

You have two months to audit every script running on your site, including ad libraries and recommendation widgets you didn’t write yourself.

Sites that receive a manual action after June 15 can submit a reconsideration request through Search Console once the offending code is removed.

What SEO Professionals Are Saying

Daniel Foley Carter, SEO Consultant, summed up the community reaction on LinkedIn:

“So basically, that spammy thing you do to try and stop users leaving? Yeah, don’t do it.”

Manish Chauhan, SEO Head at Groww, added on LinkedIn that he was:

“glad this is being addressed. It always felt like a short-term hack for pageviews at the cost of user trust.”

Read our full coverage: New Google Spam Policy Targets Back Button Hijacking

Spam Reports May Now Trigger Manual Actions

Google updated its report-a-spam documentation on April 14 to say user submissions may now trigger manual actions against sites found violating spam policies. The previous guidance said spam reports were used to improve spam detection systems rather than to take direct action.

Key facts: Google may use spam reports to take manual action against violations. If Google issues a manual action, the report text is sent verbatim to the reported website through Search Console.

Why This Matters

Google now states that spam reports can be used to initiate manual actions, making reports explicitly part of its enforcement process in official documentation.

This also raises concerns about potential abuse, as grudge reports and competitor sabotage may become more appealing when reports have a tangible impact. Therefore, the true test will be the quality of reports that Google actually considers.

What SEO Professionals Are Saying

Gagan Ghotra, SEO Consultant, wrote on LinkedIn about why the change may lead to better reports:

“Now spam reports have direct relation to Google issuing manual actions against domains. Google announced if there is a spam report from a user and based upon that report Google decide to issue manual action against a domain then Google will just send the user submitted content in report to the site owner (Search Console – Manual Action report) and will ask them to fix those things. Seems like Google was getting too many generic spam reports and now as the incentive to report are aligned. That’s why I guess people are going to submit reports which have a lot of relevant information detailing why/how a specific site is violating Google’s spam policies.”

Read Roger Montti’s full coverage: Google Just Made It Easy For SEOs To Kick Out Spammy Sites

Agentic Restaurant Booking Expands In AI Mode

Google expanded agentic restaurant booking in AI Mode to additional markets on April 10, including the UK and India. Robby Stein, VP of Product for Google Search, announced the rollout on X.

Key facts: Searchers can describe group size, time, and preferences to AI Mode, which scans booking platforms simultaneously for real-time availability. The booking itself is completed through Google partners rather than directly on restaurant websites.

Why This Matters

Restaurant booking shows how task completion within search works. For local SEOs and marketers, traffic patterns shift: users now often stay within Google during discovery, with bookings routed through partners.

This depends on Google booking partners, which may limit visibility for restaurants outside those platforms, making presence on Google-supported booking sites more important than the restaurant’s own website. This model may or may not extend to other experiences.

What SEO Professionals Are Saying

Glenn Gabe, SEO and AI Search Consultant at G-Squared Interactive, flagged the rollout on X:

I feel like this is flying under the radar -> Google rolls out worldwide agentic restaurant booking via AI Mode. TBH, not sure how many people would use this in AI Mode versus directly in Google Maps or Search (where you can already make a reservation), but it does show how Google is moving quickly to scale agentic actions.

Aleyda Solís, SEO Consultant and Founder at Orainti, noted a key limitation in a LinkedIn post:

“Google expands agentic restaurant booking in AI Mode globally: You still need to complete the booking via Google partners though.”

Read Roger Montti’s full coverage: Google’s Task-Based Agentic Search Is Disrupting SEO Today, Not Tomorrow

Theme Of The Week: Google Gets Specific

What counts as spam, what happens when spam gets reported, and what agentic search looks like all got clearer definitions this week.

Back button hijacking becomes a named violation with an enforcement date. Google’s documentation now says spam reports may be used for manual actions, not just fed into detection systems. Agentic search becomes a live product for restaurant reservations in specific markets rather than a talking point about the future.

Now, the compliance work, reporting mechanics, and agentic experience are all clearly understood enough to be tracked directly, instead of just forecasted.

Top Stories Of The Week:

More Resources:

Featured Image: Roman Samborskyi/Shutterstock

Core Update Done, GSC Bug Fixed, Mueller On Gurus – SEO Pulse via @sejournal, @MattGSouthern

Welcome to the week’s Pulse: updates affect when you can start analyzing core update performance, how much you can trust your impression data, and what Google’s CEO thinks AI will do to software security.

Here’s what matters for you and your work.

March 2026 Core Update Is Complete

Google’s March 2026 core update finished rolling out on April 8. The Google Search Status Dashboard confirms the completion.

Key facts: The rollout took 12 days, starting March 27 and finishing April 8. That’s within Google’s two-week estimate and faster than the December update, which took 18 days. Google called it “a regular update” and didn’t publish a companion blog post or new guidance. This was the third confirmed update in roughly five weeks, following the February Discover core update and the March spam update.

Why This Matters

You can now run a clean before-and-after comparison in Search Console. Google recommends waiting at least one full week after completion before drawing conclusions, which means mid-April is the earliest window for reliable analysis.

A ranking drop after a core update does not mean your site violated a policy. Core updates reassess content quality across the web. Some pages move up while others move down. Roger Montti, writing for Search Engine Journal, suggested the spam-then-core sequencing may not have been a coincidence, describing it as clearing the table before recalibrating quality signals.

What SEO Professionals Are Saying

Lily Ray, VP, SEO & AI Search at Amsive, noted on X that YouTube has gained visibility since the core update began rolling out:

“Just checked a client that ranked in AI Overviews last week and now the top 4 links in AI Overviews are all YouTube.

Let me guess: the core update was another way for Google to boost YouTube, like it did with the Discover core update.”

Aleyda Solís, SEO consultant and founder of Orainti, is running a poll on LinkedIn asking how the update impacted peoples’ websites. Currently, most respondants say the impact of the update with either positve or not noticeable.

Read our full coverage: Google Confirms March 2026 Core Update Is Complete

Google Fixes Search Console Bug That Inflated Impressions For Nearly A Year

Google confirmed a logging error in Search Console that over-reported impressions starting May 13, 2025. The company updated its Data Anomalies page on April 3 to acknowledge the issue.

Key facts: The bug ran for nearly 11 months before Google publicly acknowledged it. Clicks and other metrics were not affected. Google said the fix will roll out over the next several weeks, and sites may see a decrease in reported impressions during that period.

Why This Matters

If your impression numbers have looked unusually healthy since last May, this bug is likely part of the reason. The correction will change what your Performance report shows, but it will not change how your site actually performed in search. The impressions were logged incorrectly. Your actual visibility may not have changed.

Teams that reported impression-based metrics to clients or stakeholders since May were working with inflated numbers. Click data provides a cleaner signal for performance analysis while the fix rolls out. Treat May 13, 2025 as a data annotation point, similar to how you would mark an algorithm update date in your reporting.

What SEO Professionals Are Saying

Brodie Clark, independent SEO consultant, flagged the issue on March 30, four days before Google’s acknowledgment. He wrote:

“Heads-up: there is something bizarre going on with Google Search Console data right now.

Similar to the changes that came to light after the disabling of &num=100, impressions are again skyrocketing for specific surfaces on desktop.”

Clark documented impression spikes across merchant listings and Google Images filters on multiple ecommerce sites and called for the Search Console team to investigate.

Chris Long, co-founder of Nectiv, wrote on LinkedIn: “Holy moly SEOs. It turns out Google has been accidentally inflating impressions in Search Console reports for ALMOST A YEAR.” Long noted that Google did not indicate how much impressions would decrease, and that the profiles he checked appeared stable so far.

Source: Google Data Anomalies in Search Console

Pichai Says AI Could ‘Break Pretty Much All Software’

Google CEO Sundar Pichai said AI models are “going to break pretty much all software out there” during a podcast conversation with Stripe CEO Patrick Collison. The interview covered AI infrastructure constraints and security risks.

Key facts: Pichai framed software security as a hidden constraint on AI deployment alongside memory supply and energy. When investor Elad Gil mentioned hearing that black market zero-day prices were falling because AI was increasing the supply of discoverable vulnerabilities, Pichai said he was “not at all surprised.”

Why This Matters

The security conversation may feel distant from daily SEO work, but it connects to the infrastructure your sites run on. If AI accelerates the pace at which vulnerabilities are found and exploited, the window between a flaw existing and an attacker using it gets shorter. That puts more pressure on maintaining current patches and auditing dependencies.

Pichai’s comments were conversational, not a formal Google policy statement. But they came from someone who oversees both the company’s AI models and its threat intelligence operation. Google’s threat teams have been warning about software security risks tied to faster vulnerability discovery.

Read our full coverage: Pichai Says AI Could ‘Break Pretty Much All Software’

Mueller Calls Self-Described SEO Gurus ‘Clueless Imposters’

Google’s John Mueller responded to a blog post by SEO professional Preeti Gupta about how the word “guru” is misused in the SEO industry. Mueller shared his view on Bluesky.

Key facts: Mueller wrote:

“To me, when someone self-declares themselves as an SEO guru, it’s an extremely obvious sign that they’re a clueless imposter. SEO is not belief-based, nobody knows everything, and it changes over time. You have to acknowledge that you were wrong at times, learn, and practice more.”

Gupta’s original post explained that in India the word guru carries deep cultural and spiritual meaning that is trivialized when SEO practitioners use it as a self-applied label.

Why This Matters

The core of what Mueller said is that SEO changes over time and that nobody has it all figured out.

Just look at what happened this week. Core updates continue to happen without a clear explanation of what changed. A basic logging bug in Search Console went unnoticed for nearly a year. The tools and signals we rely on every day are imperfect, and treating any methodology or perspective as settled knowledge is how mistakes get made.

Read Roger Montti’s full coverage: Google’s Mueller On SEO Gurus Who Are “Clueless Imposters”

Theme Of The Week: The Day-to-Day Work Continue

The speculation about where search is going has never been louder. But this week’s events were a core update finishing, a data bug getting patched, and a Google Search Advocate reminding people that nobody has all the answers.

The future Pichai describes may be coming, but it hasn’t arrived yet. Right now, the job is still reading your Search Console data, waiting for a core update to settle, and staying honest about what you do and do not know.

Mueller’s comment that SEO “is not belief-based” and “changes over time” is as good a summary of this week as any. Those who will succeed in the next version of search are probably the ones paying attention to this version first.

Top Stories Of The Week:

Here are the main links from this week’s coverage.

More Resources:

For more context, these earlier stories help fill in the background.

Featured Image: [Photographer]/Shutterstock

Google Core Update, Crawl Limits & Gemini Traffic Data – SEO Pulse via @sejournal, @MattGSouthern

Welcome to the week’s Pulse: updates affect how Google ranks content, how its crawlers handle page size, and where AI referral traffic is heading. Here’s what matters for you and your work.

Google Rolls Out The March 2026 Core Update

Google began rolling out the March core update this week. This is the first broad core update of the year.

Key facts: The rollout may take up to two weeks. Google described it as a regular update designed to surface more relevant, satisfying content from all types of sites. It arrives two days after the March spam update completed in under 20 hours.

Why This Matters

The December core update was the most recent broad core update, finishing on December 29. That’s a three-month gap. The February 2026 update only affected Discover, so Search rankings haven’t been recalibrated since late December.

Ranking changes could appear throughout early April. Google recommends waiting at least a full week after the rollout finishes before analyzing Search Console performance. Compare against a baseline period before March 27.

What SEO Professionals Are Saying

John Mueller, a member of Google’s Search Relations team, wrote on Bluesky when asked whether the two updates overlap:

One is about spam, one is not about spam. If with some experience, you’re not sure whether your site is spam or not, it’s unfortunately probably spam.

Mueller later explained that core updates don’t follow a single deployment mechanism. Different teams and systems contribute changes, and those components can require step-by-step rollouts rather than a single release. That’s why rollouts take weeks and why ranking volatility often appears in waves rather than all at once.

Roger Montti, writing for Search Engine Journal, noted the proximity to the spam update may not be a coincidence. Spam fighting is logically part of the broader quality reassessment in a core update.

Read our full coverage: Google Begins Rolling Out March 2026 Core Update

Read Roger Montti’s coverage: Google Answers Why Core Updates Can Roll Out In Stages

Illyes Explains Googlebot’s Crawling Architecture And Byte Limits

Google’s Gary Illyes, an analyst on Google’s Search team, published a blog post explaining how Googlebot works within Google’s broader crawling systems. The post adds new technical details to the 2 MB crawl limit Google published earlier this year.

Key facts: Illyes described Googlebot as one client of a centralized crawling platform. Google Shopping, AdSense, and other products all route requests through the same system under different crawler names. HTTP request headers count toward the 2 MB limit. External resources like CSS and JavaScript get their own separate byte counters.

Why This Matters

When Googlebot hits 2 MB, it doesn’t reject the page. It stops fetching and passes the truncated content to indexing as if it were the complete file. Anything past 2 MB is never indexed. That matters for pages with large inline base64 images, heavy inline CSS or JavaScript, or oversized navigation menus.

The centralized platform detail also explains why different Google crawlers behave differently in server logs. Each client sets its own configuration, including byte limits. Googlebot’s 2 MB is a Search-specific override of the platform’s 15 MB default.

Google has now covered these limits in documentation updates, a podcast episode, and this blog post within two months. Illyes noted the 2 MB limit is not permanent and may change as the web evolves.

What SEO Professionals Are Saying

Cyrus Shepard, founder of Zyppy SEO, wrote on LinkedIn:

That said, as SEOs we often deal with extreme situations. If you notice certain content not getting indexed on VERY LARGE PAGES, you probably want to check your size.

Read our full coverage: Google Explains Googlebot Byte Limits And Crawling Architecture

Google’s Illyes And Splitt: Pages Are Getting Larger, And It Still Matters

Gary Illyes and Martin Splitt, Developer Advocate at Google, discussed page weight growth and crawling on a recent Search Off the Record podcast episode.

Key facts: Web pages have grown nearly 3x over the past decade. The 15 MB default applies across Google’s broader crawling systems, with individual clients like Googlebot for Search overriding it downward to 2 MB. Illyes raised whether structured data that Google asks websites to add is contributing to page bloat.

Why This Matters

The 2025 Web Almanac reports a median mobile homepage size of 2,362 KB. This indicates pages are getting larger, though it should not be considered safely below Googlebot’s 2 MB fetch limit. However, Illyes’s question about structured data contributing to bloat is worth monitoring. Google encourages sites to add schema markup for rich results, and that markup increases the weight of each page.

Splitt said he plans to address specific techniques for reducing page size in a future episode. Pages with heavy inline content should verify their critical elements load within the first 2 MB of the response.

Read our full coverage: Google: Pages Are Getting Larger & It Still Matters

Gemini Referral Traffic More Than Doubles, Overtakes Perplexity

Google Gemini more than doubled its referral traffic to websites between November 2025 and January 2026. The data comes from SE Ranking’s analysis of more than 101,000 sites with Google Analytics installed.

Key facts: SE Ranking measured a 115% combined increase over two months, with the jump starting around the time Google rolled out Gemini 3. In January, Gemini sent 29% more referral traffic than Perplexity globally and 41% more in the U.S. ChatGPT still generates about 80% of all AI referral traffic. For transparency, SE Ranking sells AI visibility tracking tools.

Why This Matters

In August 2025, Perplexity was sending about 2.9x more referral traffic than Gemini. Gemini’s December-January surge reversed that by January 2026. ChatGPT’s lead over Gemini also narrowed, from roughly 22x in October to about 8x in January.

All AI platforms combined still account for about 0.24% of global internet traffic, up from 0.15% in 2025. That’s measurable growth, but it’s still a small share compared to organic search. Two months of Gemini growth correlates with a known product launch, but it’s too early to call it a sustained pattern.

Gemini is now worth watching alongside ChatGPT and Perplexity in your referral reports.

Read our full coverage: Google Gemini Sends More Traffic To Sites Than Perplexity: Report

Theme Of The Week: Google Is Explaining Its Own Systems

Three of this week’s four stories are Google telling you how its systems work. Illyes published a blog post detailing Googlebot’s architecture. The same week, the Search Off the Record podcast covered page weight and crawl thresholds. Mueller explained why core updates roll out in waves rather than all at once. Each one fills a gap that documentation alone left open.

The Gemini traffic data provides a new perspective. Google is being open about how its crawlers and ranking systems operate. The traffic passing through its AI services is increasing rapidly enough to be reflected in third-party data, and Google isn’t explaining that part.

Top Stories Of The Week:

More Resources:

Google Tests AI Headlines, Rolls Out Spam Update – SEO Pulse via @sejournal, @MattGSouthern

Welcome to the week’s Pulse: updates affect how your headlines appear in Search, how spam enforcement played out, and how AI content gets labeled.

Here’s what matters for you and your work.

Google Tests AI-Generated Headline Rewrites In Search

Google confirmed that it’s testing AI-generated headline rewrites in traditional search results. The test uses language similar to what Google used before reclassifying AI headlines in Discover as a feature.

Key facts: Google called the test “small and narrow.” The rewrites include no disclosure that Google changed the original headline. Google said any broader launch may not use generative AI but didn’t explain what the alternative would look like.

Why This Matters

Google called AI headlines in Discover “small” in December, reclassified them as a feature by January, and is now using the same language for Search. Google has not outlined an opt-out for this test, and the documented examples show Google changing meaning, not just formatting.

What Publishers And SEO Professionals Are Saying

Bastian Grimm, founder of Peak Ace AG, wrote on LinkedIn:

“Previous rewrites were primarily about matching query intent, fixing truncation, or improving readability. This test uses AI to rewrite for engagement – and documented examples show it changing tone and intent in ways that go well beyond formatting. That is a meaningful shift. A title rewritten to match a query is one thing. A title rewritten because Google’s model thinks a different framing will perform better is another.”

Brodie Clark, independent SEO consultant, wrote on LinkedIn:

“The big issue with this approach is that there were instances where the titles for the articles were rewritten, but the meaning of the article was lost in the rewrite or through formatting changes (such as using capitals for every word).”

Nilay Patel, editor-in-chief of The Verge, wrote on Bluesky:

“Google is now screwing with the 10 blue links in traditional search and rewriting headlines – including ours – to be the worst kind of slop. This sucks so bad”

James Ball, political editor at The New World Opinion and fellow at Tech Policy Press and Demos, wrote on Bluesky:

“Google is re-headlining articles in search results, including in ways that introduce errors. I think even 2-3 years ago it would’ve backed off this for fear of publisher backlash. Does the media have enough clout left wirh tech to get this one reversed?”

Read our full coverage: Google Tested AI Headlines In Discover. Now It’s Testing Them In Search

March 2026 Spam Update Completes In Under 20 Hours

Google’s March 2026 spam update started on March 24 and finished on March 25. The rollout was significantly faster than recent spam updates. The update applies globally and to all languages.

Key facts: The rollout began at 12:00 PM PT on March 24 and ended at 7:30 AM PT on March 25. Google didn’t announce new spam policies with this update. The community response has been notably quiet, with few reports of visible impact.

Why This Matters

The rollout window was short and is already complete, so March 24-25 is the clearest period to review in Search Console. Google’s current spam policies are still the main guidelines to follow, as no new categories have been introduced.

What SEO Professionals Are Saying

Nilesh Pansuriya, leading Guru99’s global content and SEO team, wrote on LinkedIn:

“I’ve been tracking Google updates for 15 years. I’ve never seen one move this fast. The March 2026 Spam Update rolled out on March 24th. Completely finished by March 25th. ⏱️ Total time: 19 hours and 30 minutes. → August 2025 spam update → 27 days → December 2024 spam update → 7 days → October 2022 spam update → 48 hours → March 2026 spam update → under 20 hours Done before most SEOs even noticed it started.”

Read our full coverage: Google Begins Rolling Out The March 2026 Spam Update

Google Adds AI And Bot Content Labels To Structured Data

Google updated its Discussion Forum and Q&A Page structured data documentation to include new properties, including a way for sites to label AI- and bot-generated content.

Key facts: The new digitalSourceType property uses IPTC enumeration values to distinguish content created by a trained model from content created by a simpler automated process. Google lists the property as recommended, not required. When it’s absent, Google assumes the content is human-generated.

Why This Matters

Forums and Q&A platforms now have a documented way to tell Google which content was created by AI or bots. The “recommended” status means adoption will be voluntary.

What SEO Professionals Are Saying

Jan-Willem Bobbink, founder of WebGeist, wrote on LinkedIn:

“Lets talk about a gap in Google’s new AI content labeling. They require it for product feeds but only ‘recommend’ it for forums. Google just updated its Discussion Forum and Q&A Page structured data docs with a new property called digitalSourceType. It lets sites flag when a post or comment was written by an AI model or an automated bot. The idea sounds great on paper. In practice, the implementation tells a different story. The property is listed as ‘recommended,’ not required. If a site leaves it out, Google assumes the content is human-generated. That is a massive loophole.”

Read our full coverage: Google Adds AI & Bot Labels To Forum, Q&A Structured Data

Bing Connects Grounding Queries To Cited Pages

Bing Webmaster Tools added a mapping feature to its AI Performance dashboard that connects grounding queries to the specific pages cited for them. The update works in both directions.

Key facts: You can click a grounding query to see which pages are cited for it. You can also click a page to see which grounding queries drive its citations. The dashboard covers AI experiences across Copilot, AI summaries in Bing, and select partner integrations. The data is still a sample, not a complete log.

Why This Matters

This gives you a way to connect AI citation data to specific content on your site. Knowing which pages earn citations for which phrases makes it easier to decide where to focus content updates for AI visibility.

Google’s Search Console includes AI Overviews and AI Mode in standard Performance reporting but hasn’t introduced a comparable page-level citation mapping.

What SEO Professionals Are Saying

Aleyda Solís, international SEO consultant and founder of Orainti, wrote on LinkedIn:

“New Bing Webmaster Tools AI Performance Dashboard Insights: We can now see which pages are being cited for a specific grounding query, and which grounding queries are driving citations to a specific pages Thanks so much for hearing the community feedback Krishna Madhavan, Fabrice Canel and team See the announcement in comments.”

Navah Hopkins, ads liaison at Microsoft Advertising, wrote on LinkedIn:

“Grounding queries reveal the key phrases AI used to retrieve content that was cited, offering insight into how AI interprets user intent. If you see your content is getting cited, that means you’re registering as visible to the AI. The page-level citation report sheds light on which pages are helping you win that visibility.”

Read our full coverage: Bing AI Dashboard Maps Grounding Queries To Cited Pages

Theme Of The Week: Google Tightens Control Over How Content Appears

Three of this week’s four stories show Google asserting more influence over how content is presented and categorized in its ecosystem.

AI headline rewrites let Google change how your pages appear in search results. The spam update completed in under 20 hours, the fastest rollout in recent memory. And the new structured data properties ask platforms to self-report whether content was created by humans or machines.

In contrast, while Google tightens control over how content appears, Bing is giving publishers greater visibility into how their content performs in AI-generated answers. The query-to-page mapping closes a measurement gap that Google hasn’t addressed on its side.

Top Stories Of The Week:

More Resources:

Google AI Mode Goes Personal, Crawl Limits Clarified – SEO Pulse via @sejournal, @MattGSouthern

Welcome to the week’s Pulse: updates affect how Google personalizes AI Mode, what Googlebot’s crawl limits look like in practice, and what new data shows about AIO click behavior and publisher traffic.

Here’s what matters for you and your work.

Google Personal Intelligence Now Free For US Users

Google expanded Personal Intelligence from paid AI Pro and Ultra subscribers to all free US users on personal Google accounts. The feature connects Gmail and Google Photos to AI Mode.

Key Facts: AI Mode access is available now. Gemini app and Chrome rollouts are starting. When enabled, AI Mode can reference email confirmations, travel bookings, and photo context to personalize responses. No expansion beyond the US or to Workspace accounts has been announced.

Why This Matters

Paid-to-free means a much larger user base gets access to personalized AI Mode results. People searching the same query could see different AI Mode responses depending on what’s in their Gmail. That makes it harder to benchmark what AI Mode shows for any given topic.

Read our full coverage: Google AI Mode’s Personal Intelligence Now Free In U.S.

Google Reveals Googlebot’s Crawl Limits Are Flexible

Google’s Gary Illyes and Martin Splitt discussed how Googlebot’s crawl limits work. The commonly cited limits aren’t as fixed as most people assume.

Key Facts: Google has long cited a 15 megabyte limit for its crawlers, but Illyes said internal teams can override it. Google Search works with a smaller 2 megabyte threshold in practice. The limits can be increased or decreased depending on what’s being crawled and why.

Why This Matters

The 15MB number has been treated as a hard ceiling in technical SEO guidance for years. Google Search working with a smaller 2MB threshold adds useful context to the long-cited 15MB figure. Most pages are well under 2MB, but pages with heavy inline scripts, large data objects, or extensive embedded content could be affected.

Read our full coverage: Google Shares More Information On Googlebot Crawl Limits

AI Overviews Cut Germany’s Top Organic Position CTR By 59%

SISTRIX analyzed over 100 million German keywords and found AI Overviews cut the position one click rate from 27% to 11%.

Key Facts: AI Overviews appear on about 20% of German keywords, up from 17% in August. SISTRIX estimates the total cost at 265 million lost organic clicks per month across the German market. Averaged across all keywords, including those without AIOs, that works out to a 6.6% click loss.

Why This Matters

The German data is directionally similar to US findings. Position one loses more than half its clicks when an AIO appears, and informational content takes the biggest hit. This suggests the pattern is not limited to the US.

What People Are Saying

Barry Adams, founder of Polemic Digital, wrote on LinkedIn:

“Citations in AIOs don’t matter, people don’t click. If you want to keep thriving on Google, you need to offer something AI can’t replicate. For publishers, breaking news is the golden goose.”

Read our full coverage: Google AI Overviews Cut Germany’s Top Organic CTR By 59%

Search Referral Traffic Down 60% For Small Publishers

Chartbeat shared new data that breaks down search referral traffic losses by publisher size. Most previous reporting on search traffic declines treated publishers as a single group.

Key Facts: Small publishers lost 60% of search referral traffic over two years. Mid-sized publishers lost 47%, and large publishers lost 22%. Google Discover referrals fell 15% over the same period. Larger publishers are partially offsetting losses through direct traffic, email, and app referrals.

Why This Matters

ChatGPT referrals grew over 200% in this data, and they still account for less than 1% of publisher page views. The growth rate sounds impressive until you compare it to what search took away. Chatbot traffic is still too small to offset those losses in this data.

What People Are Saying

Steven Waldman, founder of Rebuild Local News and Report for America, called the data “incredibly important” in a LinkedIn post, noting that larger publishers are more insulated because of stronger brand recognition and direct-to-consumer products.

Layne Bruce, Executive Director of the Mississippi Press Association, wrote on LinkedIn:

“Each week brings some new advancement in technology that’s great for consumers but threatening the ecosystem that generates the flow of information in the first place.”

Read our full coverage: Search Referral Traffic Down 60% For Small Publishers, Data Shows

Theme Of The Week: General Benchmarks Are Getting Less Useful

Each story this week shows a number that used to mean one thing now meaning something different depending on context.

AIO click losses in Germany are directionally similar to those in the US. The 15MB crawl limit isn’t 15MB in practice. And Personal Intelligence makes AI Mode results vary by user, so checking what “shows up” for a query depends on what personal Google services that person has connected.

This week’s stories show data is more useful when you read it against your own vertical, your own site size, and your own audience.

More Resources:

Featured Image: [Credit]/Shutterstock