Latest Technical SEO News
Crawling changes, algorithm updates, rendering fixes, and structured data developments as they happen.
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Lighthouse 13.3 adds agentic browsing audits for AI agents
Lighthouse 13.3 ships four new checks including accessibility tree well-formedness, WebMCP validation, llms.txt compliance, and CLS for AI agent contexts.
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Why IA migrations break without a staging crawl
Redirect mapping misses consolidation relevance gaps, platform canonical conflicts, and orphaned navigation paths. A staging crawl catches these before Googlebot does.
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Agent runtimes, not models, now control how AI reads your site
Cloudflare and OpenAI shipped agent runtime SDKs that fetch and parse your pages before any model sees them, breaking sites that depend on client-side JS.
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Six weeks of 307 redirects split two identical migrations
Two identical subdomain migrations diverged because six weeks of 307 temporary redirects delayed canonical signals, and a sitemap parsing error compounded one.
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Google officially deprecates FAQ rich results as of May 2026
Google is phasing out FAQ rich results starting May 7, 2026. Teams using Search Console API integrations need to update before August cutoff.
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Next.js patches 13 vulnerabilities in security release
Next.js patched 13 vulnerabilities in versions 15.5.18 and 16.2.6. Middleware bypasses can expose protected content to crawlers without auth checks.
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Subfolder, subdomain, or separate .com? A composable-stack call
An EU retailer choosing between subfolder, subdomain, and separate domain for a US store faces composable-stack routing that makes hreflang invisible to Google.
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Google's quality sampling kills scaled content, not AI detection
Google's quality sampling of new URLs causes scaled content collapse, not AI detection. Poor sample performance triggers crawl reduction across the entire batch.
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Google AI Mode adds five link types that complicate attribution
Google added five new link types to AI Overviews including inline links and discussion previews. Attribution now works differently than traditional search results.
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Google tests Gemini 3 model selector in the search bar
Google is testing Pro, Fast, and Auto model selectors for Gemini 3 in the search bar, which could fragment AI Overview citation tracking across model variants.
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Managed WordPress hosts silently block AI crawlers
Managed WordPress hosts block AI crawlers by default, preventing your content from appearing in ChatGPT search and Perplexity results. Check robots.txt now.
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Schema markup does not influence LLM parsing
Schema markup does not help LLMs parse content because transformer models read token sequences, not markup. Vendors are misrepresenting how AI engines actually work.
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URL paths are semantic inputs for RAG pipelines, not just SEO
URL path segments now function as semantic inputs for RAG systems and LLMs, not just SEO signals. Descriptive paths improve AI retrieval and citation accuracy.
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Next.js streaming metadata fails Google indexing
Next.js streaming metadata gets indexed without titles and canonicals because Googlebot doesn't wait for dynamic tags to resolve in the body tag.
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GSC reports resource failures despite 200 OK in server logs
A WooCommerce site logs clean 200 responses to Googlebot, but GSC flags resource failures caused by CDN interception or timing gaps between crawl and render.
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Google's Web Bot Auth adds cryptographic bot identity
Google's Web Bot Auth adds cryptographic signing to HTTP requests, replacing spoofable user-agent headers with verified bot identity that works across IP ranges.
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Google's query fan-out splits AI queries against classic search
Google breaks AI queries into sub-queries matched against classic search results. Your pages need to rank for decomposed fragments, not complex full questions.
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Noindex vs. robots.txt disallow for millions of stub pages
Noindex and robots.txt disallow have different effects on crawling and indexing. Verify you have a crawl budget problem before blocking stub pages at scale.
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ChatGPT free tier triggers web search in only 10.8% of queries
Free ChatGPT uses live web search in only 10.8% of queries versus 47.4% for paid, leaving users vulnerable to stale data and misinformation.
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Google tells developers to build websites for AI agents
Google published a web.dev guide treating AI agents as a distinct audience, recommending semantic HTML and stable layouts that map to existing WCAG patterns.
