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analysis The Most Used Domain Extensions – From Under the Cisco Umbrella

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It is important to know how much actual internet traffic there is on a domain extension, or top level domain (TLD), since this is one indicator of the health of the extension. There are various measures of internet website use, with the main ones being Alexa, Cisco Umbrella, Majestic, SimilarWeb, and QuantCast. In this post I take a look at the global popularity of different web extensions as measured by the Cisco Umbrella ranking methodology.

Each website use rating system operates on a different principle. For example, Alexa mainly measures visits to sites by those who have installed the Alexa browser plug-in, while Majestic measures backlinks to sites from different subnets.

The methodology for all four rating systems is covered in this paper. That research paper also introduces TRANCO, a new ranking system that uses results from the other four in order to obtain a ranking that is more resistant to deliberate manipulation.

Cisco Umbrella Rankings
Recently CENTR began using the Cisco Umbrella rankings in their data on domain extensions. The Cisco rankings are based on the number of unique DNS (Domain Name System) queries are made for a domain, but only counting those from different IP Internet Protocol ) addresses.

Since the Cisco Umbrella network handles over 100 billion requests every day, the rankings are based on a large dataset. You can read more about the Cisco Umbrella rankings in their post introducing the system.

The top million sites are updated daily in the Cisco Umbrella ranking. I used the Cisco Umbrella rankings for this post partly because they conveniently provide rankings by extension. The data is freely available, and has been provided since 2016.

It is important to realize that the Cisco Umbrella ranking system indicates which extension, or domain, is more popular than another, but does not provide publicly-released measures of the significance of those differences.

The Top 50 Most Used TLDs
I looked at the Cisco Umbrella rankings for domain extensions. The ranking list provided by Cisco is actually a mix of extensions (TLDs) along with some commonly referenced individual sites, such as many specific Amazon server addresses. I extracted only the TLDs, in compiling the following ordered list. Therefore the numbers will be different from those on the raw Cisco list, but the order is the same.

Here are the relative web traffic rankings for different domain extensions, with higher on the list meaning more traffic.
  1. .com
  2. .net
  3. .org
  4. .io
  5. .co
  6. .tv
  7. .ms
  8. .us
  9. .me
  10. .uk
  11. .co.uk
  12. .fi
  13. .ru
  14. .news
  15. .de
  16. .gov
  17. .st
  18. .cn
  19. .jp
  20. .info
  21. .edu
  22. .ly
  23. .fr
  24. .cloud
  25. .it
  26. .ai
  27. .to
  28. .mobi
  29. .xyz
  30. .link
  31. .pl
  32. .eu
  33. .ca
  34. .nl
  35. .network
  36. .be
  37. .biz
  38. .in
  39. .market
  40. .co.jp
  41. .ua
  42. .im
  43. .vn
  44. .gg
  45. .mx
  46. .pro
  47. .club
  48. .es
  49. .am
  50. .media

Findings and Surprises
Many of the results could have been predicted, but there were also some surprises.
  • As expected, .com is in first place.
  • Most will not be surprised that .net and .org, in that order, take second and third places.
  • Beyond that, predictions are more challenging. The general purpose country code extensions .io, .co and .tv, in that order, are the next TLDs with the most traffic, at least as Cisco Umbrella measure web traffic.
  • The next place was a real surprise to me, with .ms taking 7th place. The .ms domain extension , a country code for the British Overseas Territory Montserrat also finds many other uses. It is used by Microsoft for certain projects, and also sometimes for sites related to the state of Mississippi, in addition to several other international uses.
  • The .us country code did surprisingly well, coming in 8th place, well above some country codes that typically sell for higher prices.
  • It was followed by the well known country extensions .uk, .co.uk, .fi and .ru in that order. Given the size of the country .fi is surprisingly active, but the extension finds use in the financial world as well as its regional meaning.
  • I would not have predicted .news as the highest-ranking new global top level domain name (new gTLD) in 14th place, nor that it would edge out major country codes like .de, .cn and .jp.
  • At 16th place is the U.S. government extension .gov, higher than the education .edu and .info extensions that took 20th and 21st places respectively.
  • The .ly extension finds use in domain hacks, and takes 22nd place, while France .fr is in 23rd place.
  • Another new gTLD comes next, with .cloud in the 24th position.
  • After Italy’s .it, the .ai extension takes 26th place. It has found use of late for artificial intelligence startups, or investors hoping to sell to them,
  • The country code for the island nation of Tongo, .to, now sold from Toronto and promoted both as a domain hack or phrase, and for use by the Toronto community, secured 27th place.
  • The decline of .mobi is apparently over-stated, as the extension, while not selling for the high valuations of the past, is still in the top 30 in terms of use.
  • Two more new gTLDs crack the top 30 with .xyz and .link in positions 29 and 30. The .xyz extension also does well in Alexa ratings.
  • A number of major country codes, including .eu at 32nd, take the next number of places, follow by the new gTLD .market in 35th place. There were numerous high value .market domain sales in the past, but it is not as active in aftermarket sales of late. Clearly from this ranking it is still is actively used.
  • The .biz legacy alternate extension was in 37th place.
  • The country code extension for India, .in, is in 38th place.
  • The .gg country code, now used for global gaming, picked up 44th place. This was closely followed by Mexico’s .mx in 45th place.
  • The legacy alternative extension .pro took 46th place.
  • Two other new gTLDs, .club and .media took 47th and 50th places respectively. The Alexa rankings also show .club as a relatively heavily used extension.

Reflections
While ranking may hide big differences in actual use, I was surprised that a number of new gTLDs ranked as highly as they did. Eight new gTLDs placed in the top 50, beating out many major country code extensions.

The ranking of .news is particularly impressive, outpacing .gov, .info and .edu, as well as such major country extensions as .de, .cn, .jp and .fr.

The general use country codes .io, .co, .tv and .me all placed in the top ten, supporting these as popular choices for businesses and domain investors looking outside the legacy big three.

Keep In Mind
All ranking systems are dynamic and change from day to day. I have been researching this article for a few weeks, and during that time the rankings were pretty stable. Also remember that any ranking system may mask huge differences between activity of different TLDs even when their rankings are only slightly different. On the other hand, different rankings may actually correspond to rather similar use rates, especially as one goes further down the list.

It is important to stress that these are rankings based on perceived global traffic. No doubt each country code extension finds extensive use within its own region, even though when measured globally many are well down the ranking list.

Have Your Say
I would love to hear your reflections.
  • What things most surprised you in the rankings?
  • How important is web traffic when you consider investing in an extension?
  • Which extensions do you predict are on the way up, and which are on the way down, in terms of web use?
  • In a year’s time what extensions that did not make this list of top 50, would you expect to now be on the list?
 
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The views expressed on this page by users and staff are their own, not those of NamePros.
Great article. .com .org .net remain on top, do you think another extension will ever take the 2 or 3 spot?
i think .co can take over
 
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. .com .org .net remain on top, do you think another extension will ever take the 2 or 3 spot?
I was just reviewing this threadm and don't believe I responded earlier with my personal answer to your question @DigitalRoar. Barring something completely unknown to us now, I don't see any extension reaching .com in first place for foreseeable future.

I feel less sure about the possibility that a different TLD will reach place 2 or 3. Org seemed solid, but of course recently developments leave questions in some minds. Net has been fairly constant but not growing and dropping slightly, it seems.

I think it is possible with aggressive and inspired leadership and marketing a generic country code, or possibly a new extension, might sometime reach position 2 or 3. To do so they need to have it priced to compete (similar to .com renewal wise), build trust in how it is managed and long term, build consumer acceptance for it with marketing and promotion, and to some degree .net/.org go down with problems. All of those things happening is probably unlikely.

Most of the new extensions could never move to 2 or 3 because they are too specialized. A few like .xyz are general purpose, but don't seem poised to get anywhere near position two. A short, general, non-English word TLD would have certain advantages where most business and Internet growth will be in next decade.

If I had to bet on which TLD might possibly reach position 3 in a decade it would be, simply my personal opinion, probably .co or .io (if latter continues to broaden its use categories). I think the high renewal rates are holding back their broad use to some degree currently, however. It is not that most companies can't afford $35 per year, but it is rather the very early single person startups of a young person in or just out of school even that much seems significant. And of course to domain investors with a 1% sell-through it means that it is a lot.

Bob
 
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Surprised that .uk was above .co.uk

Since the stats are based on DNS queries - .uk has to be queried first before going deeper, so the number will be slightly higher than .co.uk (because there are also some .uk domains, as well as .ac.uk, .net.uk etc.).
 
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