List of .blue Zone Domains
.blue Domain Zone Datasets
Download a .blue domain name list or a full dataset with DNS, server IP, emails, and phone numbers.
Zone TLD: .BLUE
Zone type: generic (gTLD)
Update frequency: daily (last updated on October 15, 2026)
Total domains monitored: 25,636
Live domains included in datasets: 20,845
Datasets available:
Basic Domain List (download sample 💾)
Detailed Domain Dataset (download sample 💾)
Filters: Active domains, New domains (last 24h), Deleted domains (last 24h)
| Dataset type choose a type |
Last updated next update: today |
Active domains currently registered |
New domains last 24h |
Deleted domains last 24h |
Emails from websites |
Phones from websites |
CSV |
|---|---|---|---|---|---|---|---|
| Basic Domain List | Oct 15, 2026 | 20,845 | 12 | 10 | --- | --- | Download GET |
| Detailed Domain Dataset | Oct 15, 2026 | 20,845 | 12 | --- | YES | YES | Download GET |
How many .blue domains are registered?
As of October 15, 2026, the .blue domain list contains 20,845 active .blue domains, 0.005% of all domains tracked by NetAPI, which makes .blue the #313 largest of 1,584 zones. 12 new .blue domains were registered in the last 24 hours and 308 over the last 30 days. Net of expired and deleted domains, the zone changed by −196 (−0.932%) in 30 days and by +1,854 (+9.76%) year over year.
The .blue domain list and the detailed dataset above are refreshed daily, so these figures move with the zone. 42 .blue domains are in the free NetAPI Top 1M. See the Top 1M list. 1 .blue domains are currently listed in the compromised domains feed (0.005% of the zone). See the TLD abuse report.
Frequently Asked Questions
See our FAQ for more answers.
Can I download sample datasets for the .blue zone?
Yes. Download a sample .blue domain list or a sample .blue dataset.
What is a basic domain list, and how does it differ from a detailed dataset?
Both cover the same 20,845 registered domain names in the .blue zone. A basic list is one domain name per line in a gzip CSV. A detailed dataset adds DNS servers, server IP, hostname, emails, phone numbers, and more. See the dataset format details.
What are active and new domains?
Datasets for .blue are updated daily. Active domains are all currently registered names in the zone. New domains are names added in the last 24 hours.
Can I download only newly registered .blue domains?
Yes. The New domains list contains only the .blue domains registered in the last 24 hours and is rebuilt every day.
To download it manually, sign in and click the number in the New domains column of the
download table on this page (the Download button next to it gets the full list of active domains).
Through the API, call
/api2/?method=download&zone_tld=blue&dataset_type=list&filter_type=new&token=YOUR_API_TOKEN
(dataset_type=dataset for the detailed dataset); see the API documentation.
Can I download deleted .blue domains?
Yes. The Deleted domains list contains the .blue domains that were in the zone the day before and have dropped out of it, so it covers the last 24 hours and is rebuilt every day. Deleted domains are available as a list of domain names only, there is no detailed dataset for them.
A deleted domain is not necessarily free to register. The list records names that have dropped out of the .blue zone: the registration expired, or the domain was suspended or undelegated. After the expiration date a domain normally goes through a renewal grace period and a redemption period, typically 30 to 75 days depending on the zone, during which the current holder can still restore it, and only after a short pending-delete period is it released for registration. Some names return to the zone when the holder renews or a suspension is lifted, and then appear in the New domains list again.
What format and size is the file?
Every .blue domain list and dataset is a CSV file compressed with gzip (.csv.gz):
the basic list has one domain name per line, the detailed dataset has one row per domain with the columns described in the
dataset format details.
Compressed, the current .blue basic list is about 87 KB and the detailed dataset about 517 KB.
Any archiver opens gzip files, for example the free
7-Zip on Windows,
and the API can also serve the files uncompressed (format=plain).
How do I automate daily downloads?
Schedule automatic downloads through the API. See the API documentation for authentication and endpoints.
Are emails and phone numbers available for every domain?
No. We collect contact details from public websites when available. Many domains have no published email or phone, and we do not guarantee these fields on every row. Do not use the data for unsolicited bulk outreach.
Additional .BLUE Zone / Registry Information
Zone Registry: Identity Digital
Dispute Policy: link
Registry Policy: link
Data Privacy Policy: link
The domain was launched in 2014 as part of the new gTLD initiative by Afilias, the registry that also managed .info and .mobi and merged into Identity Digital in 2020.
.blue is one of the smaller colour domains, but it has many creative uses, from personal blogs and design studios to environmental and ocean-related projects. Registration is open to anyone.
Top DNS providers / .blue domain zone
Share of .blue domains by nameserver provider.
Chart Y-axis is scaled to the data range to show day-to-day changes (not from zero).
Based on this dataset and daily threat-intelligence signals. Domains may be listed after observed phishing, malware, spam, botnet, or similar activity; inclusion does not imply malicious intent by the owner, registrar, registry, or host. Updated daily; figures may change as new data arrives.
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