What Google says about « headers http »

4 statements 8 related

🎥 YouTube Videos 4

Can you really control PDF indexing through HTTP headers?

John Mueller 🎥 YouTube Feb 2022 ★★

Il est possible de définir une balise canonical sur un PDF via les headers HTTP. On peut également utiliser noindex dans les headers pour le...

Do HTTP headers really affect how frequently Google crawls your resources?

Google 🎥 YouTube Jan 2017 ★★

Lorsque vous utilisez des CDNs ou serveurs pour distribuer des fichiers comme CSS, assurez-vous que les headers HTTP, comme les ETags, sont ...

Is the X-Robots-Tag header really the only way to keep PDFs out of Google's index?

Gary Illyes 🎥 YouTube Jun 2022 ★★★

Pour bloquer l'indexation de fichiers comme les PDFs, il faut utiliser le header HTTP X-Robots-Tag. Si l'accès aux headers n'est pas possibl...

Is it really necessary to use the 'Vary: User-Agent' header on all your adaptive pages?

Google 🎥 YouTube May 2015 ★★★

Pour les pages web adaptatives proposant du contenu différent selon l'agent utilisateur, il est crucial d'utiliser le header HTTP 'Vary: Use...

💡 Semantically related 8

Statements from the same topics, to deepen your understanding.

Does Google Really Index Images Loaded via JavaScript?

Martin Splitt Apr 2025 ★★★

Does Google's 2 MB crawl limit put your content at risk of being truncated?

Gary Illyes Mar 2026 ★★★

Should You Start Using AVIF Format for Your SEO Images?

John Mueller Apr 2024 ★★

Does Google really struggle to see your JavaScript content without rendering?

Gary Illyes Feb 2024 ★★★

Should You Worry About Duplicate Content Between an HTML Page and Its PDF Version?

John Mueller Dec 2023 ★★★

Does Google really detect WEBP format through the HTTP header rather than the file extension?

Gary Illyes Mar 2023 ★★★

Should You Really Optimize Image File Names and Avoid Changing Their URLs at All Costs?

John Mueller Oct 2022 ★★★

Does Google really index your PDFs, or does it transform them first?

Gary Illyes Sep 2022 ★★★