12 articles
Search Console's crawl stats aggregate. Log files give you ground truth — every request, every response, per URL, per second. Here's what to look for, which tools to use, and how to verify Googlebot without trusting the User-Agent string.
Redirect chains accumulate silently over years of site changes. Every hop costs crawl budget, user latency, and a little link equity. Auditing and collapsing chains is usually the fastest technical SEO win available.
Core Web Vitals is a real but modest ranking signal — and the metrics keep shifting. INP replaced FID in March 2024. Here's what the current three metrics actually measure, what they don't, and where optimization actually moves the needle.
Flat vs deep is an old SEO debate based on outdated assumptions about crawl depth. What matters now: can users and crawlers reach any URL in 3-4 clicks, and does your internal link graph reinforce topical clusters?
Most sites add schema markup and see zero ranking movement. The reason: schema is not a ranking signal — it's an eligibility signal for rich results. Here's which types actually earn SERP features and how to deploy them without triggering misuse penalties.
Most technical SEO audits fail the same way: they generate 80-page PDFs with 200 findings, and clients execute none of them. The audits that move rankings solve for one thing: which of five layers is broken, and which single fix restores the most value.
A CDN is usually an SEO positive — faster TTFB, better Core Web Vitals, happier Googlebot. But the failure modes are subtle: bad cache headers, edge personalization gone wrong, bot-throttling at the edge. Here's how to get it right.
Hreflang breaks silently. Bidirectionality errors, region code confusion, and mixed delivery methods cause international SEO issues that don't show up as explicit errors — just underperformance in secondary markets.
Googlebot renders JavaScript. But the render pass happens seconds, hours, or days after the initial crawl — and any content that only appears after JS execution lives in that second pass. For SEO-critical content, that gap is a risk most sites underestimate.
Most robots.txt files break in subtle ways — blocking too much, blocking too little, relying on directives Google ignores. Here are annotated examples from different site types, the common mistakes, and the testing workflow that catches regressions.
Crawl budget is not infinite. For sites over 100k URLs, how you shape Googlebot's behavior determines which pages ever get indexed. Here's a framework, with real numbers.
Sitemap limits (50,000 URLs, 50MB uncompressed) hit real sites more often than people think. How sites shard their sitemaps affects crawl efficiency, indexation speed, and the diagnostic value of GSC reports. Here's the set of patterns that work.