Choosing a Domain Name

The domain name is one of the first SEO decisions a site owner makes, and often an over-thought one. Keywords in the domain carry little direct ranking value. Domain history carries a significant risk. Brand recall and trust carry the most long-term value. It is also the first of a sequence: the new site planning guide covers the decisions that follow, from CMS choice to site architecture and crawler access.

What do domain names affect for SEO?

Google uses the domain as a brand signal, not a keyword signal. A domain that matches a search query does not rank higher because of that match. Google’s Exact Match Domain update in 2012 removed the automatic ranking advantage that keyword-stuffed domains had previously carried.¹

What the domain does affect:

Brand recognition. People remember short, distinctive names. A brandable domain is easier to share, easier to type from memory, and less likely to be confused with a competitor.

Perceived trust. A domain that reads like a keyword list (best-seo-services-london.co.uk) triggers user scepticism. Branded domains score higher on perceived legitimacy, which affects click-through rates from search results.

Natural anchor text. When people link to a site without thinking about it, they often use the domain name. A branded domain produces meaningful anchor text. An exact match domain can produce anchor text that looks over-optimised at scale.

Brand domains vs exact match domains

An exact match domain (EMD) is one where the domain name contains the target keyword: buycheapflights.com, manchesterpizzadelivery.co.uk. In 2012, Google reduced the ranking benefit these domains had previously carried.

Since that update an EMD confers no direct ranking advantage. Any residual effect runs through incidental factors, such as the matching anchor text people use when they link with the bare domain, not a domain-keyword relevance signal, and it rarely justifies choosing an EMD over a stronger brand name.

A branded domain builds authority over time in a way an EMD cannot: entity recognition, Knowledge Graph association, and brand search volume. Brand search volume (how often people search directly for your name) is widely thought to feed Google’s brand-strength signals, on the strength of patents and the 2024 leak, though Google has not confirmed it as a direct ranking factor.

The practical question: would you be comfortable calling the company this name, independently of what it does for search? If not, the domain is engineered around a query rather than a brand.

TLD selection

The top-level domain (the extension after the dot) affects geo-relevance signals but not inherent authority.

.com is the default for global brands. It carries the highest default recognition and a neutral geo-signal.

Country-code TLDs (.co.uk, .de, .com.au, .fr) send a clear geo-relevance signal for searches in that country. Google calls a ccTLD “a strong signal to both users and search engines that your site is explicitly intended for a certain country”.² A UK-focused business benefits from .co.uk; a business targeting multiple countries should use .com.

Newer TLDs (.io, .co, .ai, .app) work from an SEO standpoint and rank normally, and Google documents why. Three of those four are country codes at IANA rather than generic domains, .co for Colombia and .ai for Anguilla among them, but Google publishes a list of ccTLDs it treats as generic “as we’ve found that users and website owners frequently see these more generic than country-targeted”, and all three are on it.² So they carry no unwanted geo-signal. .io is established in tech, .ai is common in AI products. The risk is user hesitation rather than any algorithmic penalty.

Avoid hyphens. Hyphens are not a confirmed ranking signal, but a hyphenated domain (blue-widget.com instead of bluewidget.com) is harder to share verbally or recall from memory, and keyword-hyphen domains can read as spammy.

How do you check domain history before buying?

If you are registering a brand new domain name, there is nothing to check. If you are buying an existing, expired, or previously used domain, the history matters.

Domains carry their history with them. A domain that was penalised, de-indexed, or used for spam passes those problems to the new owner. Recovery is possible but slow, and it works against a new site’s early momentum.

There is also a policy dimension. Since March 2024, Google’s spam policies have named expired domain abuse, “where an expired domain name is purchased and repurposed primarily to manipulate search rankings by hosting content that provides little to no value to users”, as a violation in its own right, regardless of whether the previous site was penalised.³ Acquiring a domain to genuinely continue or rebuild what was there is fine; buying one purely to inherit ranking signals for unrelated content is not.

Before buying any previously used domain:

Check for de-indexation. Search site:yourdomain.com in Google. If the domain has been recently active but returns no results, it may have received a manual penalty or been de-indexed for spam.

Check the backlink profile. Use Ahrefs, Semrush, or Majestic to inspect inbound links. Look for link farms, irrelevant foreign-language sites, or networks of low-quality pages. A clean backlink profile matters more than any keyword in the name.

Review previous content. The Wayback Machine (web.archive.org) shows what content previously lived on the domain. A domain previously used for pharmaceutical spam, adult content, or manipulative link schemes carries associations that are slow to shed.

Search for the domain name. A Google search for the domain itself can surface forum posts, blacklist entries, or spam complaints that indicate a problematic history.

A clean, newly registered domain is usually preferable to an existing domain with a questionable past, even if the existing domain has some residual backlinks.

What does not matter

Keywords in subdomains (blog.example.com, shop.example.com) carry negligible signal compared to subfolder equivalents (example.com/blog/, example.com/shop/). Subfolders consolidate authority more effectively.

Domain length, beyond the point where it becomes difficult to remember or type, has no ranking effect.

Domain age as a standalone factor cannot be gamed by choosing one domain over another. A new domain registered today will accumulate age; what matters is what the site does with that time.

Footnotes

1. The EMD Update: Google issues “weather report” of crack down on low-quality exact-match domains — Search Engine Land ↩

2. Managing multi-regional and multilingual sites — Google Search Central. Carries both the ccTLD signal and the list of ccTLDs Google treats as generic. ↩ ↩²

3. Expired domain abuse — Google Search spam policies ↩