Should you really keep your old domains to safeguard your brand?

Why does Google recommend keeping inactive domains?

Mueller's position reflects a logic of brand protection rather than pure SEO optimization. When you abandon a domain you have used, even briefly, you lose control over what may be published there in the future.

A third party can buy this expired domain and host content that harms your reputation: dubious affiliate sites, adult content, scams, or worse, phishing targeting your former users. Search engines may still associate this domain with your brand for months or even years.

What is the real risk for SEO?

The main risk is not so much a direct impact on your current ranking, but rather a dilution of brand authority in the SERPs. If someone searches for your brand or a variant and lands on an old domain repurchased with spam content, confusion sets in.

Historic backlinks pointing to this old domain can also be exploited for indirect negative SEO. The new owner inherits an existing link profile that they can divert for dubious purposes, creating toxic associations with your brand ecosystem.

Does this recommendation apply to all domains?

Mueller talks about brand protection, not all domains you may have tested or impulsively bought. The question is: has this domain been sufficiently publicly exposed to create an association with your brand?

A domain used for 3 years with traffic, backlinks, and a presence in your marketing materials deserves to be kept. A domain purchased on a whim and never put online? Much less critical.

• Indefinite retention of domains that have publicly represented your brand
• Risk of malicious squatting if abandoned, especially with a backlink history
• Recurring cost to budget: €10-15/year per domain, multiplied by the number of extensions
• Permanent 301 redirect to the main domain recommended to preserve link equity
• Monitoring of expirations is critical to avoid renewal oversights

Is this statement consistent with real-world observations?

Absolutely. We frequently see cases of expired domains being bought by content farms or PBN networks that exploit the existing history and backlinks. The new owner benefits for free from domain authority built by the previous holder.

In some sensitive sectors (finance, health, e-commerce), we even observe attempts at targeted phishing on former domains of well-known brands. Users who had bookmarked the URL or clicked on old backlinks end up on fraudulent pages.

What nuances should be added to this recommendation?

Mueller's recommendation is solid for established brands with significant history, but may seem excessive for micro-projects or tests abandoned quickly. The cumulative renewal cost over 10 years can far exceed the defensive value of the domain.

It's also important to distinguish between domains that have received quality backlinks and those that have never been referenced anywhere. A domain without backlinks and without a history in Archive.org poses almost no risk if it expires. [To be verified]: Google has never specified how long the domain-brand association persists after expiration in its systems.

In what cases does this rule not apply?

If you purchased a generic expired domain (without a brand) solely for its SEO metrics, allowing it to expire again does not pose any reputation problem. You have not created any public association between this domain and your brand.

Similarly, internal test domains that were never indexed or extension variations (.net, .org) that you never used publicly can be abandoned without major risk. The danger arises when there has been public exposure, even minimal.

What should you actually do with your old domains?

The first action is to establish a complete inventory of all domains that your organization has owned, including extension variants and common misspellings you may have registered. This audit often reveals forgotten domains approaching their expiration date.

Next, for each domain retained, set up a permanent 301 redirect to your main domain or the most relevant page of your current site. This preserves the equity of historical links and guides users who still access the old domain.

How to manage renewal budgeting in the long term?

With 5 to 10 old domains, the annual cost remains manageable (€100-150). But some organizations accumulate dozens of domains over 15 years. It is then necessary to prioritize based on reputational risk: domains that have represented your main brand should stay, while 3-month test domains without backlinks can go.

Set up automatic renewal alerts with your registrar and centralize management under a single account to avoid oversights. A domain that expires by mistake can be repurchased within hours by automated scrapers monitoring expiration lists.

What mistakes should be avoided in this management?

The classic mistake is redirecting an old domain to your new site and then removing the redirect after 6 months thinking that "it's fine, Google has understood." Backlinks remain active for years, and removing the redirect loses that link equity.

Another trap is allowing an old domain to point to a 404 page or a blank page. This is worse than anything: visitors and search engines encounter emptiness, creating a negative experience while still maintaining the association with your brand. It is better to have a proper redirect or a clear message.

• Audit all domains currently and historically owned
• Check the backlink profile of each old domain using an SEO tool
• Implement permanent 301 redirects to the main domain
• Activate automatic renewal and centralize management
• Budget the annual preservation cost (€10-15 per domain and extension)
• Monitor expiration dates with alerts at 90 and 30 days