Google's John Mueller says A/B tests with significant differences between variants may show visible effects in search results and indexing.

Google is rolling out a new multimodal search type filter in Search Console's performance report to help SEOs segment traffic by search modality.

Google Lighthouse 13.5 introduces a new audit for AI agent resource discovery, though its approach differs from the current ARD specification.

Cloudflare launched Bot Preference Sync, allowing sites to set AI crawler access policies by category rather than managing individual crawlers in robots.txt.

Google appears to have strengthened its ability to block AI scrapers, search scrapers, and third-party tracking tools starting around mid-September.

John Mueller addressed how cross-domain canonicals can cause de-indexing and how publishers should monitor for such issues.

Google has added four new ad experience metrics to the Chrome User Experience Report (CrUX) for publishers to track.

Google is testing new ad metrics—Ad Count, Ad Density, Ad Weight (Network), and Ad Weight (CPU)—in CrUX to measure page ad impact.

Google redesigned Search results in the EEA with reworked aggregator units and new supplier units for hotel, flight, transport, and product queries.

Google Search Console's links report has stalled for approximately a month without fresh data.

Google clarified that fixing SEO problems doesn't immediately restore rankings; recovery can take months.

Google's John Mueller confirmed the disavow tool does affect search results, though it has specific uses and limitations.

Over 100 organizations including OpenAI, Google, and Microsoft are warning website owners to prepare for escalating AI-driven cyberattacks.

The IRS website and other government sites experienced a significant drop in Google search visibility, likely due to overly aggressive bot-blocking that hindered indexation.

Multiple SEOs report dramatic drops in PDF visibility and clicks in Google Search, with critical documents from IRS.gov and New York State no longer appearing in results.

Google Search Console's URL inspection tool may display canonicals pointing to spammy sites, warranting closer review of canonical selections.

Gary Illyes clarified that hreflang alternate URLs are stored as variants rather than indexed pages in the traditional sense.

Google Search Console's new Platform properties feature lets SEO teams see exactly how YouTube, Instagram, and TikTok content ranks in Google Search—often unexpectedly well.

Google has formally removed the requirement to block internal search results from its guidelines, but John Mueller advises continuing the practice to avoid server load and quality issues.

Google's John Mueller and Martin Splitt discuss blocking internal search result pages to prevent infinite crawl traps and database overload.

Google's robots.txt recrawl feature in Search Console is throwing errors for multiple users, though the issue appears intermittent.

Google has updated its crawling infrastructure documentation with fresh recommendations for optimizing crawl budgets.

Google introduced a new spam policy on April 13, 2026 targeting back button hijacking, a deceptive practice that traps users on sites to boost ad impressions.

Google's John Mueller suggests using country-code TLDs for international sites may be unnecessary and can complicate both site management and search engine comprehension.

Job board operators are experiencing multi-month approval delays for Google's Indexing API with no documented review timeline from Google.

Google updated its EEA search result units to include local business queries alongside directories and direct providers.

Common Crawl's analysis of over 584,000 llms.txt files reveals most are template-generated, many contain no links, and some misapply crawler-control rules the format doesn't support.

Apple updated its Applebot documentation to confirm that Applebot-Extended crawlers are excluded from Search rankings, mirroring Google's approach with Googlebot-Extended.

Google Search Console now supports natural-language AI prompts for organic search analysis.

Google recommends blocking filter URLs via noindex or robots.txt, but most major e-commerce sites use canonicals instead—and few test which approach actually performs better.

Google Maps now requires users to sign in with a Google account to view all reviews, sort results, and leave feedback on business listings.

Google updated its video structured data schema to add support for the creator property and clarified which interaction types are supported in VideoObject.

Google announced R4T-Diffusion, a new query fan-out framework designed for production-scale search systems.

Google has begun rolling out an Ecosystem carousel across European regions to showcase vertical search services as part of Digital Markets Act compliance.

A survey of 131 SEO professionals by Zyppy ranks relevance and search intent first, backlinks second, and content quality third among Google's perceived ranking factors.

John Mueller tested whether AI crawlers actually request markdown from websites and shared his findings.

Gary Illyes from Google clarified that Googlebot downloads JSON files but doesn't parse them—parsing happens in the indexing stage instead.

SERoundtable reports Google fixed favicon and crawl stats bugs in Search Console while announcing a product image minimum size increase to 500×500 pixels starting January 2027.

SERoundtable reports that Google Search Console sent widespread email alerts incorrectly flagging existing account owners as newly added, later confirmed as a bug.

Google confirmed and fixed a bug that caused favicons to display as generic globe icons in search results.

SEO professionals are reporting a sudden spike in favicons disappearing from Google Search snippets, though the cause remains unclear.

Suganthan released a free classifier tool to identify and categorize seven types of AI-generated conversations appearing in Search Console data.

Google's John Mueller explains why the search engine conducts periodic spam updates rather than solving spam once with existing algorithms.

Microsoft will retire Bing Webmaster Tools' legacy SOAP/POX APIs on August 31, 2026, requiring users to migrate to the REST/JSON API version.

Google clarified review snippet structured data guidelines to explicitly prohibit fake reviews and those with undisclosed incentives.

Google refreshed its crawl budget guidance to clarify that all sites start with the same conservative crawl capacity limit, which can expand automatically if demand and health metrics support it.

Google's Gary Illyes says sites are better off omitting lastmod dates in XML sitemaps entirely if those dates are incorrect or unreliable.

A Chrome extension experiment demonstrates that local AI models like Gemini Nano can handle certain SEO workflows without requiring cloud-based frontier models.