SEOBAR

SEO / GEO Research Notes

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AllMeasurement & ToolsTechnical SEO
Light diagram: a green box at the top represents an AI Overview, with three links inside sharing position 1; below it, two grey boxes are ordinary search results at positions 2 and 3
Measurement & Tools

Search Console AI Overview Report: How Impressions Are Counted

The Search Console AI Overview report (Generative AI performance report) has one metric: impressions. Counting rules, op...

October 30, 2026· Howshin Wang
Line chart on a light background: daily impressions start falling at a green dot marking the start of the drop, and a gray shaded area to the right marks the update start, after the drop had already begun
Measurement & Tools

Traffic Drop After a Google Update? How to Confirm the Cause

A traffic drop in the same week as a Google algorithm update doesn't prove the update caused it. How to use the ranking ...

October 30, 2026· Howshin Wang
Light background bar chart: three tall dark green bars on the left stand far above the rest, followed by twenty-odd short light gray bars close to the baseline, labeled "Top 10% take 78.7% of clicks"
Technical SEO

How Many SEO Articles Do You Need? A Traffic Concentration Study

On two sites, the top 10% of articles took up to 78.7% of clicks, and the site with more posts was more concentrated. Wh...

October 30, 2026· Howshin Wang
Light background diagram: two boxes representing websites on the left connect to a box representing AI on the right; one line is stopped partway by a grey X while the other passes through. Title reads "AI can't read your site? It may not be the content"
Technical SEO

ChatGPT Can't Read a New Domain at First: It Took 7 Days

On day 5, ChatGPT refused to open this new domain with "URL is not safe to open"; by day 12 it read the site and summari...

October 30, 2026· Howshin Wang
Light background bar chart: the sitemap.xml bar is 89.1% dark green (AI crawlers) and the robots.txt bar is only 53.9% dark green, with the rest in gray (search engines)
Technical SEO

AI Crawlers and sitemap.xml: 30-Day Log Data from Three Sites

30 days of crawler logs from three sites: AI crawlers requested sitemap.xml 3.6 to 8.2 times as often as search engines,...

October 30, 2026· Howshin Wang
Dot plot on a light background with four rows: FAQ block, summary box, author info and schema. Gray dots show the cross-site difference in AI citations (all positive, +7.5% to +20.9%), green dots show the within-site comparison (−5.3% to +6.9%, none significant). Title on the left reads "Do FAQ and Schema Increase AI Citations?"
Technical SEO

Do FAQ and Schema Increase AI Citations? A 468K-Citation Study

A University of Toronto study of 468,000 AI citations found FAQ blocks, schema and author boxes have no effect within th...

October 30, 2026· Howshin Wang
Light-background Venn diagram: the left circle shows ChatGPT with 77 cited domains, the right circle Gemini with 102, with 50 unique to ChatGPT, 75 unique to Gemini and an overlap of 27 highlighted in green; a note below gives 152 unique domains in total
Technical SEO

ChatGPT vs Gemini Citation Overlap: 17.8% in a 216-Sample Study

216 samples of SEO questions from Taiwan: ChatGPT and Gemini share only 17.8% of cited domains. On how-to questions Chat...

October 30, 2026· Howshin Wang