Official statement
You should not automatically copy the technical markup of major websites, even those belonging to Google, as they may contain errors or use non-standard internal codes that only work within their system but are not valid for the web in general.
Other statements from this video 29 ▾
- □ Is it true that Google prioritizes its own platforms in search rankings?
- □ Should you split your backlinks between two different URLs?
- □ Why doesn't Google automatically hide Chrome extension pages on mobile?
- □ Does Google really slow down crawling on pages that are in prolonged no-index?
- □ How can temporary internal linking boost your reindexing speed?
- □ Is it true that changing your URL could cost you valuable SEO data?
- □ Can canonical and hreflang tags actually work together on the same page?
- □ Why should you avoid using canonicals between language versions?
- □ How do you choose between no-index and canonical for an effective SEO strategy?
- □ Should you combine no-index and canonical tags to enhance your SEO signals?
- □ Why does the crawl rate take longer to recover than to decline?
- □ Should you use the form to boost your crawl rate?
- □ Why is a 500-millisecond response time essential for effective SEO crawling?
- □ Why doesn't a reduced crawl rate from Google lead to the deindexing of your pages?
- □ Why does Google keep crawling old mobile subdomains?
- □ How does Googlebot's geographic limitations affect content indexing?
- □ Is it true that the ES-419 code is a critical error for hreflang?
- □ Why doesn't Google assign a single quality score for SEO?
- □ How could bold text influence your SEO strategy?
- □ How can overusing bold text harm your SEO efforts?
- □ How does semantic HTML enhance your SEO performance?
- □ Is it really necessary to manage over 10,000 links per page to optimize your SEO?
- □ Should you favor a hierarchical structure to boost your SEO?
- □ Why is Google Discover traffic so unpredictable for SEO professionals?
- □ What makes Google Discover's SEO standards so much stricter?
- □ Does response time really impact how Google crawls your site?
- □ Do PWAs Really Impact Your SEO?
- □ Is it essential to redesign older websites for better performance?
- □ What unique SEO challenges do JavaScript PWAs bring?
Official statement from
(4 years ago)
⚠ A more recent statement exists on this topic
Can Invalid Schema.org Markup Penalize Your Organic Rankings?
View statement →
TL;DR
Avoid copying the markup of major websites. They may contain errors or non-standard internal codes that could harm your SEO.
❓ Frequently Asked Questions
Quels sont les codes internes non standards ?
Ce sont des codes développés pour des systèmes spécifiques. Ils peuvent ne pas fonctionner correctement dans d'autres contextes.
Les grands sites sont-ils aussi conformes ?
Pas toujours. Ils peuvent tolérer des erreurs qui passeraient inaperçues pour leur SEO ou ne les affecteraient pas autant.
Quels outils utiliser pour vérifier mon balisage ?
Google's Structured Data Testing Tool et Rich Results Test sont recommandés pour valider votre structure.
🎥 From the same video 29
Other SEO insights extracted from this same Google Search Central video · published on 12/11/2021
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