Search visibility is in transition. Google’s June 2025 Core Update, which launched on June 30, shook rankings across industries while simultaneously underscoring how much search has moved beyond ten blue links. For many sites, the shift was dramatic: “Over 16% of URLs ranking in the top 10 after the update didn’t rank in the top 20 before,” according to Search Engine Land (2025). That volatility coincided with the expansion of AI Overviews, the persistence of zero-click behaviors, and continued pressure to deliver structured, mobile-first experiences.

The result is an SEO environment where the “so what” is clear: success is measured not only in rankings but also in impressions within AI summaries, eligibility for rich results, and performance across multiple engines. For marketers, the KPIs that matter now include ranking stability, AI Overview capture rate, Core Web Vitals pass percentage, and non-Google traffic share.

What Happened

Google’s June 2025 Core Update officially began rolling out on June 30. Within days, volatility was recorded across sectors, and by the time analysis was published, data providers confirmed it was among the most disruptive updates in recent memory. More than one in six of the top-10 URLs were newcomers, highlighting the magnitude of change (Search Engine Land, 2025).

At the same time, AI features accelerated. Semrush found AI Overviews appeared in 13.14% of queries by March, nearly doubling from January (Semrush, 2025). Google’s own disclosure at I/O emphasized that AI Mode and Overviews are driving over 10% incremental usage for query types where these features appear (Google, 2025). Yet visibility in these surfaces often comes without clicks. AdLift documented that 71% of searches now result in no organic click at all, leaving brands to measure impressions and mentions rather than traffic alone (AdLift, 2025).

Structured data remained central. Jameela Ghann’s June guide reinforced that JSON-LD markup unlocks higher CTRs through enhanced listings (Ghann, 2025), while Webflow’s July explainer stressed its scalability for larger SEO and Answer Engine Optimization projects (Webflow, 2025). Without schema, eligibility for snippets and AI summaries is severely limited.

Technical SEO continued to shape outcomes. Capsicum Media Works reported that only 47% of sites currently pass Core Web Vitals (2025). Clevertize emphasized that mobile performance is critical, urging marketers to prioritize responsive fixes and real-device testing (2025).

Finally, diversification remains essential. Lawrence Hitches observed Google’s global share at 89.54%, Bing with 7.5% in the U.S., and Yandex dominating Russia at 65% (2025). For brands with regional audiences, optimization can’t end with Google.

Why It Matters (Factics)

Fact: Over 16% of top-10 results after the June update were new entrants. [SEL]

Tactic: Annotate rankings during update windows, avoid reactive rewrites until volatility settles, and re-audit content depth post-rollout.

KPI: % of tracked keywords maintaining or regaining top-10 visibility after three weeks.

Fact: AI Overviews triggered in 13.14% of queries by March 2025. [Semrush]

Tactic: Structure content with clear H2/H3 headings, FAQs, and concise explanations to increase eligibility.

KPI: AI Overview capture rate across priority keywords.

Fact: 71% of queries produce no organic click. [AdLift]

Tactic: Shift reporting to include impressions, brand mentions, and AI visibility alongside CTR.

KPI: Ratio of impressions vs. clicks for high-value queries.

Fact: JSON-LD schema enables enhanced listings and scalability. [Ghann, Webflow]

Tactic: Audit site templates for Article, FAQ, and HowTo schema; validate with Google’s Rich Results Test.

KPI: Rich result eligibility % and CTR delta for enhanced vs. plain listings.

Fact: Fewer than half of sites pass Core Web Vitals. [Capsicum]

Tactic: Target LCP <2.5s, INP <200ms, CLS <0.1; prioritize fixes on mobile templates.

KPI: % of URLs passing CWV in Search Console (mobile and desktop).

Fact: Mobile performance is decisive for rankings. [Clevertize]

Tactic: Prioritize responsive design, compress images, test on real devices.

KPI: Mobile vs. desktop CWV performance deltas.

Fact: Bing holds 7.5% U.S. share; Yandex dominates Russia with 65%. [Hitches]

Tactic: Maintain Bing Places listings, localize for Yandex, and track regional engine performance.

KPI: Traffic diversification across engines.

Fact: AI Mode increased query volume by >10% in supported markets. [Google]

Tactic: Optimize for entity clarity, authoritative sourcing.

KPI: Sessions referred from AI Mode experiences.

Lessons in Action

1. Wait, then act: Don’t rewrite content mid-rollout. Hold steady until rankings stabilize.

2. Schema at scale: Ensure JSON-LD coverage across Article, FAQ, and HowTo templates.

3. Measure visibility differently: Add AI Overview impressions and brand mentions to dashboards.

4. Fix technical debt: Improve LCP, INP, and CLS — especially on mobile.

5. Diversify engines: Maintain presence in Bing and Yandex for regional resilience.

Reflect and Adapt

SEO in July 2025 is about more than winning keywords. Google’s update reinforced the importance of trustworthy, structured content, while AI Overviews and zero-click behavior redefined how success is measured. Technical SEO remains a differentiator, and multi-engine optimization protects reach. The lesson: broaden metrics, strengthen fundamentals, and position content for both human readers and AI-driven systems.

Common Questions

Q: Should I react immediately to ranking drops after an update?

A: No. Core updates bring volatility. Wait for stabilization before making significant changes.

Q: How do I measure success when clicks decline?

A: Track impressions, AI Overview presence, and brand mentions — not just CTR.

Q: Is schema markup optional?

A: No. Structured data is now essential for eligibility in rich results and AI summaries.

Disclosure

This article was created with the assistance of AI research systems. All nine sources were independently verified, publicly accessible, and published on or before June 30, 2025 unless noted for update completion.

References

Search Engine Land. (2025, July 17). Google June 2025 core update rollout is now complete. https://searchengineland.com/google-june-2025-core-update-rollout-is-now-complete-458617

Semrush. (2025, July 22). AI Overviews Study: What 2025 SEO Data Tells Us. https://www.semrush.com/blog/semrush-ai-overviews-study/

AdLift. (2025, July 1). What Is Zero Click Search? https://www.adlift.com/blog/zero-click-search-seo-strategy/

Ghann, J. (2025, June 18). How to Use Structured Data & Schema for Blog SEO. https://www.jameelaghann.com/marketing-lab/how-to-use-structured-data-schema-blog

Webflow. (2025, July 31). Schema markup explained. https://webflow.com/blog/schema-markup

Capsicum Media Works. (2025, June 30). Core Web Vitals: Ultimate SEO Guide for 2025. https://capsicummediaworks.com/core-web-vitals/

Clevertize. (2025, June 26). Core Web Vitals for the 2025 Update. https://clevertize.com/blog/mastering-core-web-vitals-for-the-2025-update/

Hitches, L. (2025, July 1). Differences Between Search Engines. https://www.lawrencehitches.com/search-engine-differences/

Google. (2025, May 20). AI Mode in Google Search. https://blog.google/products/search/google-search-ai-mode-update/