What Google says about "dns lookup"

🎥 YouTube Videos 2

How can you verify that a crawler is really Googlebot and block fake ones without hurting your SEO?

Google 🎥 YouTube Aug 2023 ★★★

Pour vérifier si une IP est un crawler Google, faites un reverse DNS lookup de l'adresse IP pour obtenir le hostname, puis vérifiez le hostn...

Does loading JavaScript from too many domains really slow down your site's first impression?

Alan Kent 🎥 YouTube May 2022 ★★★

Si les fichiers JavaScript sont chargés depuis différents noms de domaine, il peut y avoir une surcharge de lookup DNS par domaine. Un nombr...

💡 Semantically related 8

Statements from the same topics, to deepen your understanding.

How Does Google Actually Choose Which Canonical URL to Index When Multiple Versions Exist?

John Mueller Sep 2019 ★★★

Why could your HTTPS site display an incorrect name and favicon in Google due to a phantom HTTP page?

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Does Submitting Individual Sitemaps Actually Speed Up Crawling, or Is One File Enough?

John Mueller Sep 2025 ★★

Should You Use a Noindex Header to Protect Your llms.txt Files from Google Indexing?

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How Can You Manage Multi-Version URLs to Maximize Your SEO Visibility?

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Should you redirect or completely disable an unused subdomain for SEO?

Google Jun 2024 ★★

Why doesn't Google index JavaScript files like web pages?

Google Feb 2024 ★★★

Do you really need an XML sitemap to get indexed by Google?

Gary Illyes Feb 2024 ★★★

What Google says about « dns lookup »