nTLDData legacy TLDs too :)

Tucows / OpenSRS

Registrar DNS Serves 163 legacy-gTLD domains across 9 TLDs, 0% of all domains whose nameservers we can attribute. opensrs.com/

New gTLDs Legacy gTLDs All gTLDs
The registrar's own nameservers, used by default for domains that have not been pointed elsewhere — which includes both active sites and domains doing nothing at all.

How domains are attributed here

A domain counts towards Tucows / OpenSRS when one of its nameservers ends in one of these suffixes. Matching is on the name in the zone's NS records only — nothing is resolved or fetched. Listed by weight, which is the order the classifier tries them in so a specific suffix beats a broader one.

Nameserver suffixWeight
opensrs.net 10
tucows.com 10

Where its domains are

.org — 74 (45.4%).net — 52 (31.9%).info — 14 (8.59%).mobi — 13 (7.98%).biz — 6 (3.68%).asia — 1 (0.61%).pro — 1 (0.61%).travel — 1 (0.61%).xxx — 1 (0.61%)
163zone, 18 Aug 2026
.org7445.4%
.net5231.9%
.info148.59%
.mobi137.98%
.biz63.68%
.asia10.61%
.pro10.61%
.travel10.61%
.xxx10.61%

The ten largest of 9 TLDs.

Nameservers in use

as of 18 Aug 2026

The hostnames actually found in the zones, with how many domains name each. The suffixes above are the rule; these are what the rule matched. Counted across all gTLDs rather than the current scope, since the aggregate is built in one pass over every zone.

Nameserver Domains Share of these
ns1.opensrs.net 107
51%
ns1.tucows.com 80
38.1%
dns1.tucows.com 21
10%
ns1.he.tucows.com 2
1%

Shares are of the 210 domains on these 4 nameservers, not of the provider's 163.

TLDs served

as of 18 Aug 2026
TLD Domains here Share of this provider Of the TLD
.org 74
45.4%
0%
.net 52
31.9%
0%
.info 14
8.59%
0%
.mobi 13
7.98%
0.01%
.biz 6
3.68%
0%
.asia 1
0.61%
0%
.pro 1
0.61%
0%
.travel 1
0.61%
0%
.xxx 1
0.61%
0%

Data currency. Domain counts on this page are from zone files dated and refresh daily. Registrar figures are from ICANN's monthly registry reports for April 2026, which ICANN publishes about three months in arrears; zone files contain no registrar information, so no fresher source exists. Full detail on methodology and live pipeline status.