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Google Search Ranking Volatility & Chatter Spike Today Search Engine Roundtable · 10h ago
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Google changed their helpful content guidelines to emphasize good “Main Content” Marie Haynes · Oct 2, 2026
Google releases September 2026 spam update Semrush Blog · Sep 29, 2026
Update to the Site Reputation Policy Google Search Central · Aug 28, 2026

Lumar

Technical SEO, crawling and site health at scale · 4 stories

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Filter stories Showing: Low impact · Lumar

Impact on your site

High impact 13 Medium impact 143 Low impact 315

Technical area

Ranking & Algorithms 75 AI Search & Visibility 51 Measurement 23 Paid Search 18 Crawling & Indexing 16 E-commerce 15 Local SEO 13 Content & Quality 10 Site Architecture 7 SERP Features 5 Policy & Penalties 5 Structured Data 4 Links 3 International 2 Speed & Core Web Vitals 2

Impact is an automatic estimate of how much a story is likely to affect one website, weighing who published it, whether Google has confirmed a ranking change, how many outlets ran it, and whether the wording implies work on your site. It reads headlines, not your analytics — treat it as triage, not a verdict.

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Lumar AI Sep 14, 2026

Why Your Content Isn’t Getting Cited: A GEO Diagnostic Checklist

Your content may be useful and relevant, but that doesn’t guarantee it will be seen. Use this practical GEO diagnostic checklist to investigate what may be limiting your content's visibility in AI…

AI Search & Visibility

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Lumar Aug 21, 2026

Semantic Relevance Isn’t One Metric — It Has Three Jobs

Welcome back to our GEO series! In the previous article, we explored candidate page selection and how AI systems determine which pages are eligible for retrieval. Semantic relevance can help inform…

AI Search & Visibility

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Lumar Aug 12, 2026

Candidate Page Selection: The Stage SEO Tools Don’t Measure

Candidate page selection can determine whether your content is considered for retrieval in AI search. Learn how it works, what influences page eligibility, and what it means for GEO.

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Lumar AI Jul 30, 2026

AI Search & SEO Industry News – July 2026

Your monthly roundup of search industry news, brought to you by the Lumar team.

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