DNS Coffee ☕
Zone

sfr active

First Seen Dec 01, 2015 · First Import Dec 03, 2015 · Last Import Aug 01, 2026 · Type generic · Operator Societe Francaise du Radiotelephone - SFR · DNSSEC Signed since Sep 22, 2019

Also indexed as: Domain Nameserver

15
Domains
3,891
Zone Imports
4
Current Nameservers
8
Past Nameservers
Zone Growth
Nameserver Timeline
Current Nameservers 4
Name First Seen Domains
d.nic.sfr Nov 27, 2017 2
c.nic.sfr Nov 27, 2017 2
b.nic.sfr Nov 27, 2017 2
a.nic.sfr Nov 27, 2017 2
Past Nameservers 8
Name First Seen Last Seen Domains
ns2b.ksregistry.com Nov 01, 2017 Nov 29, 2017 0
ns2a.ksregistry.com Nov 01, 2017 Nov 29, 2017 0
ns1b.ksregistry.net Nov 01, 2017 Nov 29, 2017 0
ns1a.ksregistry.net Nov 01, 2017 Nov 29, 2017 0
y.ns.nic.sfr Dec 01, 2015 Nov 26, 2017 0
x.ns.nic.sfr Dec 01, 2015 Nov 26, 2017 0
c.ns.nic.sfr Dec 01, 2015 Oct 31, 2017 0
a.ns.nic.sfr Dec 01, 2015 Oct 31, 2017 0
Sample Current Domains 1
Domain Added
dcv.sfr Aug 09, 2025
The most recently added of the 15 domains in this zone, up to 50 — full lists via the API.
Sample Past Domains 0
No domains have left this zone recently.
The most recently removed domains that were in this zone and no longer are, up to 50 — full lists via the API.
SOA 2,408 serials
Primary NSns0.centralnic.net
Mailboxhostmaster.centralnic.net.
Serial170077
Refresh15 minutes
Retry30 minutes
Expire70 days
Minimum TTL1 hour
Show 10 recent serial changes
SerialFirst SeenLast Seen
170011 Jul 31, 2026 Jul 31, 2026
169945 Jul 30, 2026 Jul 30, 2026
169879 Jul 29, 2026 Jul 29, 2026
169813 Jul 28, 2026 Jul 28, 2026
169748 Jul 27, 2026 Jul 27, 2026
169682 Jul 26, 2026 Jul 26, 2026
169616 Jul 25, 2026 Jul 25, 2026
169551 Jul 24, 2026 Jul 24, 2026
169484 Jul 23, 2026 Jul 23, 2026
169418 Jul 22, 2026 Jul 22, 2026
DNSSEC signed

Signed since Sep 22, 2019.

Signed domains: 1 · DS records: 2 (as of Aug 01, 2026)

RoleAlgorithmPublic KeyFirst Seen
KSK ECDSA P-256/SHA-256
showOyaS2wHPC/oeZU4m4rRAH8asc9X1cJ9HFBVsiWWhEVFzn+MZerfgj8WHQEy7hhezT6nr3EUDbdiiIBbaOvk/ew==
 Jan 18, 2024
ZSK ECDSA P-256/SHA-256
showCfU/scAyJdgKR4qlOP95nkNPLNB1FwiUvqXqGBGf2IPalHXN9g6PtCYp0Rh+lI5te2vv3obCg9UjDhitEt+KzQ==
 Jan 18, 2024
SignsKey TagSignerExpires
SOA 9641 sfr Aug 31, 2026
DNSKEY 58083 sfr Aug 11, 2026
60 retired DNSKEYs no longer published.