CDN change and its effects on GoogleBot’s behaviour

Diagram showing all URLs on a large site filtered through index management into a curated indexed set of high value pages with stronger site wide quality.

Revisiting The Importance of Quality Indexation For Large-Scale Sites

A case study shows how weak quality indexation problems can affect the website.
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Diagram showing how a redirect chain ending at a robots.txt disallowed path stops Googlebot-Image from fetching an image file, next to the flattened crawlable path that resolves it.

Fixing A Google Images Indexing Problem Caused By Redirect Chains and Robots.txt Directives

A case study showing how an issue with images due to a CDN provider can impact…
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Three step diagram showing how to find crawl waste, apply crawl controls, and free crawl budget for valuable pages.

How we optimized our Crawl Budget

A detailed case study on how Skroutz.gr, over 1.5-years, dealt with index bloat and crawl budget.
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Leverage pyramid for huge websites from template level down to page level, beside an operating model checklist.

Behemoth SEO: Search Strategy for Huge Websites

A case study of what happens when you remove duplicate or low-quality content from enterprise sites.
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Diagram showing crawl rate limit and crawl demand combining into crawl budget, the pages Googlebot fetches per period.

What Is Crawl Budget?

An explanation of crawl budget with data and a smaller case study to show the impact…
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Diagram showing the same image published on three different pages, with Google Images choosing one canonical copy to rank based on page context, authority and image sitemap signals.

Long Term Duplicate Image Ranking Experiment

An experiment to understand bespoke images vs. stock images' impact on rankings.
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