In a recent Reddit discussion, Google’s John Mueller shared valuable SEO advice for businesses. It wants the companies to use two different TLDs for SEO. These different top-level domains (TLDs) for their company will enhance their online presence. Specifically, a company plans to use the .co.uk TLD for its general website and .digital for marketing campaigns. Mueller’s guidance offers insight into how businesses can manage multiple TLDs for SEO without harming their search rankings.
Best Practices for Using Two TLDs for SEO

Mueller outlined a series of steps for businesses aiming to use two TLDs:
- Perform a Site Migration: Start with a normal site migration. This involves setting up 301 redirects for all pages from the .digital domain to the .co.uk domain. This ensures that search engines understand the relationship between the two sites.
- Focus on One Domain for SEO: It’s crucial to prioritize one domain, such as the .co.uk TLD, to build your online presence. The search engines should clearly understand which domain is the primary one.
- Avoid Duplicate Content Issues: During the transition period, avoid using the rel=canonical tag, which tells search engines which version of a page is the preferred one. Mueller advises not to use this method during the migration, as it could confuse search engines when trying to establish which domain should be recognized.
- Email Address on Different TLD: If your company’s email uses the .digital domain, that’s not an issue for SEO. Google doesn’t use email domain information for search rankings.
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- After the Migration: Once your migration is stable, you can consider running both domains separately if necessary, but the .co.uk domain should be the clear focus for SEO purposes.
In conclusion, when using multiple TLDs, it’s important to ensure that search engines recognise one as the primary domain. The other TLD should remain “invisible” to search engines during the early stages of the migration to avoid any potential SEO problems.
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