Should you really host your news blog on the same domain as your product site?

Why does Google emphasize using the same domain for a news section?

The statement from John Mueller targets a common strategic mistake: creating a blog or news section on a new domain or a distinct subdomain (blog.mysite.com, news-mysite.com, etc.). This reflex, often driven by technical or organizational questions, leads to an immediate loss of authority.

A new domain starts with zero history, zero backlinks, and zero trust. Even if you redirect or create links from the main site, you fragment your SEO capital instead of consolidating it. Google sees two distinct entities, and the authority accumulated on the product domain does not transfer automatically.

What is this

Is this recommendation consistent with observed practices?

Absolutely. SEO audits consistently show that blogs hosted on subdomains perform worse than those integrated into the main domain, all other things being equal. Indexing times are longer, initial ranking is weaker, and organic growth is slower.

That said, some use cases technically justify a subdomain: an e-commerce platform under PrestaShop with a separate WordPress blog, incompatible technical stack constraints, or a completely autonomous editorial team. But even in these configurations, you need to actively compensate: strengthened internal linking, dedicated backlink strategy, clean redirects. The SEO cost remains real.

What nuances need to be added to this statement?

Mueller refers to a classic product site that adds a news section. Context matters. If you manage a group of distinct brands (each with its own domain and positioning), creating an independent media outlet can be strategically justified. [To be verified]: Google has never confirmed whether a media site with strong editorial authority benefits from specific signals distinct from those of a product site.

Similarly, some sectors (finance, health) sometimes impose regulatory constraints on the separation of commercial content and editorial content. In these cases, you need to balance legal compliance with SEO optimization—and clearly document the linking strategy between the two entities.

In what cases might this rule not apply?

If your main domain has a toxic history (manual penalties, massive spam, catastrophic redesign not cleaned), starting a blog on that same domain may be counterproductive. It's better to cleanse the root domain before adding editorial content.

Another exception: complex multilingual or multi-geographical sites. Sometimes, for reasons of server latency, local compliance, or regionalized editorial strategy, a distinct subdomain or ccTLD may be justified. But again, the choice should be documented and compensated with a solid linking strategy.

What should you do concretely to integrate a news section?

Choose a consistent URL structure: /blog/, /news/, /resources/, /news/ according to your sector and audience. The important point is clarity and sustainability. Avoid outdated structures (/2025/01/article) that fragment the tree structure without real SEO benefit.

Integrate this section into your existing internal linking from the start. Articles should point to relevant product pages, and vice versa. Add an entry in the main menu, a news feed on the homepage if relevant, and contextual links in category pages.

What mistakes should you avoid when setting up?

Do not create a sealed silo between your news section and the rest of the site. An isolated blog, without internal links to products or services, does not distribute its PageRank and becomes a dead weight. Google will see two distinct universes on the same domain.

Also, avoid the temptation of duplicate content between blog and product sheets. If your articles replicate commercial descriptions word-for-word, you dilute signals instead of strengthening them. Editorial content should provide complementary value: buying guides, comparisons, case studies, industry news.

How can you check if your architecture is optimal?

Use Search Console to monitor the indexing of your new section: coverage rate, average indexing time, crawl errors. Compare these metrics with those of your existing product pages. If the gap is significant, your internal linking or crawl budget is likely misconfigured.

Analyze the distribution of internal PageRank with a crawler (Screaming Frog, Oncrawl): verify that your articles receive links from high-authority pages and that they redistribute links to your conversion pages. An article that receives no internal links remains invisible to Google, even on the right domain.

• Choose a sustainable and clear URL structure (/blog/, /news/)
• Integrate the news section into the main menu and existing internal linking
• Create bidirectional links between articles and relevant product/service pages
• Monitor indexing and crawling in Search Console (coverage, errors, indexing time)
• Audit the distribution of internal PageRank with a crawler to detect isolated silos
• Avoid duplicate content between editorial and commercial content