City TLDs: Insights and Opportunities

in Domain Intelligence, mDI. Last Updated on March 18th, 2025

With mDI, we have access to so many insights at our fingertips.

A little over a week ago, we were chatting informally about which untapped opportunities we saw with nTLDs, especially city domain extensions.

So, instead of speculating we put mDI’s powers to work. Analyzing thousands of sites and answering some questions we wanted to explore.

What’s the story here? There are unexploited opportunities and undiscovered insights for those commercializing city TLDs that will help them sell more of the right things to current Registrants (instead of spamming them with one-size-fits-all messaging), and target the right segments for acquisition.

We didn’t want this to only go over descriptive numbers – we want to highlight the unexplored opportunities available to city TLDs.

For this project, we analyzed 5 nTLDS: .BERLIN, .MADRID, .NYC, .MIAMI, .LONDON.

City TLDs Report mDI Contents

Digital Inertia

We started of course with an important benchmark – how many sites on these domain extensions are actually active, developed websites?

Turns out, not that many.

We have a benchmark against an average ZoneFile, showing about 66% active sites.

However, not one of the city TLDs we analyzed have more than 26.5% of their websites active.

City TLDs Report mDI Parked vs Active

Extension Success Stories

While a little disappointed with the sheer volume of Parked sites, we looked at the profile of the Top 20 sites on these TLDs.

What do they have in common? They have a high Success score on mDI (A number between 0-100 that reflects the success or maturity of a website.

The score takes into account values like number of pages, organic traffic, ranking in search engines, update frequency, etc.) and there are some patterns in the type of audience they target.

The most successful sites on the city TLDs we analyzed are active sites, mostly using WordPress.


Websites in the Arts & Entertainment category as well as Business & Consumer Services are well represented. 



When further broken down, we can see sites representing Venues, Local Neighbourhoods, Community resources, Real Estate, Travel & Tourism and more. 


  • .LONDON has more venues/exhibition sites
  • .BERLIN has more Community spaces
  • .MIAMI has more Real Estate
  • .NYC has more Travel & Tourism, and Food & Drink
  • .MADRID has more Local services
  • 
They all have social media presence and over 29 pages on the site, with no Security issues. 

Moving away from the very top sites, we also got a snapshot of the overall success levels of the domains on these particular extensions.

The way we do this is by using the success score mentioned above, and categorizing the sites:

  • Inactive: Success score is < 10
  • Getting started: Success score is < 50
  • Few visits: Success score is < 75
  • Popular site: Success score is < 90
  • Top site: Success score is 90-100

.BERLIN was the only domain extension we analyzed where over 75% of the websites have a Low Success level.

Additionally, even compared to an average Zonefile, Low Success sites are overrepresented in this TLD.

This can indicate a struggle with SEO related factors, and affect perceived value and satisfaction with the TLD itself from Registrants or potential Registrants.

City TLDs Report mDI Success Levels

Fortified Cities

Strongly related to a site’s online success and visibility is its level of Security. There are many low and medium security sites among the city TLDs, which is about average in our experience.

However, it’s in Security where a lot of opportunities lie – to help the Registrant by offering them extremely relevant products and services.

The way we calculate this is using our own proprietary SEO score, which is a number between 0-100 that reflects how optimized sites are for search engines (and is updated weekly).

Then, we categorize them into the following levels:

  • Low: If the SEO score is < 50
  • Medium: If the SEO score is < 85
  • High: If the SEO score is < 95
  • Very high: If the SEO score is 95-100

Not one city had an alarming level of Low SEO level sites, but don’t let the “Medium” level fool you – the sites on this level have a lot of work to do.

City TLDs Report mDI SEO

With the amount of medium to low SEO level sites, there is a big opportunity to offer SEO tools, SSL, DIFM services, proactive support and audits to this segment.

Need for Speed

Also closely linked to online visibility and SEO is site performance. When we look at Performance levels, what we’re doing is taking the Performance score, which is a number between 0-100 that reflects how fast websites load (it’s updated weekly in mDI).

Then, we categorize them:

  • Slow: The site performance is low. The performance score is < 50.
  • Medium: The site performance could be improved. The performance score is < 90.
  • Fast: The site loads quickly and performance is good. The performance score is 90-100.

The only TLD with over 20% of sites performing slowly was .MADRID.

Upon closer inspection, there were some CMS platforms showing quite a few sites with performance issues.

This is the perfect opportunity to understand and act on the barriers that are making website owners’ digital journeys difficult and affecting their online visibility.

City TLDs Report mDI Performance

Different Faces of City Websites

After looking at the more successful sites on each TLD, we wondered what the general profile was of the websites.

What industry or sector were they in? What types of websites are really using these domain extensions?

City TLDs Report mDI dot MADRID Industries

As an example we have .MADRID.

We can see a high amount of sites regarding leisure activities and reference materials. 

These mostly revolve around city activities and tourism. 



Food & Drink is underrepresented for a city TLD, especially a city that has over 30k restaurants and bars. 

As many of the top sites on .MADRID offer local business and consumer services and it is a city with hyperlocal activities, this is TLD which has not reached its potential when it comes to industry spread. 

Targeted campaigns from Registrars to these local industry segments, emphasizing the local benefits of city TLDs may just be what they need to increase adoption.

City TLDs Report mDI Industries general

It’s clear that nTLDs for cities are uniquely positioned as the most locally relevant domain extension for any business.

So what types of websites exactly are using these TLDs?

There is a clear inclination to use a city TLD for commercial or business focused sites.


This indicates a user base that likely views it as professional and business-friendly.
A city TLD can also be a preferred choice for individuals looking to create personal blogs, or local influencers who share their content via blogging as well as social.

There are massive opportunities here to run hypertargeted campaigns – not only to convert local businesses and personal sites to a city extension, but to detect the type and industry of any website to determine which nTLD is the best fit for them, and then offer it to them.

In total, mDI enabled us to answer 11 questions which you can see in the full report (you’ll get it by signing up to our mDI newsletter!) along with many more details and charts individualized per TLD.

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