Domain Name System Security Extensions - How Old Today?

1

.au

1

.jp

3

.com

3

.fi

3

.lt

3

.nagoya

3

.pt

3

.ro

3

.rs

10

.be

10

.bg

10

.cr

10

.cz

10

.eus

10

.ie

10

.io

10

.lk

10

.na

10

.nl

10

.pk

10

.post

10

.pr

10

.th

10

.us

10

DNSSEC