sfunet.com - dns.ninja

sfunet.com

DNSSEC⚠️ Not signed
NS01.dnsv.jp ⭐
A2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.
PTR01.dnsv.jp
A157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.
PTR01.dnsv.jp
NS02.dnsv.jp
A157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.
PTR02.dnsv.jp
NS03.dnsv.jp
A2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.
PTR03.dnsv.jp
A157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.
PTR03.dnsv.jp
NS04.dnsv.jp
A2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.
PTR04.dnsv.jp
A157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.
PTR04.dnsv.jp
MXsfunet.sakura.ne.jp ⭐
A49.212.243.60🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3550.sakura.ne.jp
TXTv=spf1 a:sfunet.sakura.ne.jp -all
SOA01.dnsv.jphostmaster@dnsv.jp serial=1748941865

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1783473801

Same first word

sfunet.com
sfunet.sakura.ne.jp

Similar names

futsen.com.tw
efnuts.com
funset.de
fentus.com
nufset.com
sufnet.nl
fusent.com
nutfes.net
fuents.com
tunefs.com
funste.com
tenfus.com
fnetus.com
funets.com
funset.com.mx
fusnet.com
nufest.com
stefun.ro
stfune.com
funest.com
stufen.de
setfun.com
funest.net
funset.net
fusten.de
tenfus.cn
futsen.org
eftsun.ru
ftunes.com
tunefs.org
stufen.com
sufnet.com
funset.ir
stefun.de
stufen.at
usfnet.com
eftsun.com
fsunet.eu
usneft.com
stefun.com
fusten.nl
stufen.ch
efnuts.org
fentus.ru
funset.com
funest.nl
stefun.net
fusnet.us

DNS History

10 records (5 active, 5 former)

20162017201820192020202120222023202420252026NS01.dnsv.jp02.dnsv.jp03.dnsv.jp04.dnsv.jpdns10.hichina.comdns9.hichina.comns7.cnolnic.netns8.cnolnic.netMXsfunet.sakura.ne.jpmxdomain.qq.com
●NS01.dnsv.jp2026-06-27 → 2026-07-08 · 3 obs
○ 2016-12-07 00:23:38
● 2026-06-27 02:16:34
● 2026-07-08 01:40:24
●NS02.dnsv.jp2026-06-27 → 2026-07-08 · 3 obs
○ 2016-12-07 00:23:38
● 2026-06-27 02:16:34
● 2026-07-08 01:40:24
●NS03.dnsv.jp2026-06-27 → 2026-07-08 · 3 obs
○ 2016-12-07 00:23:38
● 2026-06-27 02:16:34
● 2026-07-08 01:40:24
●NS04.dnsv.jp2026-06-27 → 2026-07-08 · 3 obs
○ 2016-12-07 00:23:38
● 2026-06-27 02:16:34
● 2026-07-08 01:40:24
○NSdns10.hichina.com2016-12-07 → 2016-12-07 · 4 obs
○ 2015-10-31 01:38:56
● 2016-12-07 00:23:38
○ 2026-06-27 02:16:34
○ 2026-07-08 01:40:24
○NSdns9.hichina.com2016-12-07 → 2016-12-07 · 4 obs
○ 2015-10-31 01:38:56
● 2016-12-07 00:23:38
○ 2026-06-27 02:16:34
○ 2026-07-08 01:40:24
○NSns7.cnolnic.net2015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 00:43:46
○ 2015-10-31 01:38:56
○ 2026-07-08 01:40:24
○NSns8.cnolnic.net2015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 00:43:46
○ 2015-10-31 01:38:56
○ 2026-07-08 01:40:24
○MXmxdomain.qq.com2015-06-18 → 2015-06-18 · 3 obs
● 2015-06-18 00:43:46
○ 2015-10-31 01:38:56
○ 2026-07-08 01:40:24
●MXsfunet.sakura.ne.jp2026-06-27 → 2026-07-08 · 3 obs
○ 2015-10-31 01:38:56
● 2026-06-27 02:16:34
● 2026-07-08 01:40:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
sfunet.com01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp-

✅ Authoritative Response

Server:157.7.35.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sfunet.com (unsigned zone)

⏱️ Timing

Total: 1115ms | Queries: -

📄 Records

TypeCountSample Data
NS401.dnsv.jp, 02.dnsv.jp...
MX1sfunet.sakura.ne.jp (pri: 10)
TXT1v=spf1 a:sfunet.sakura.ne.jp -all
SOA101.dnsv.jp hostmaster.dnsv.jp

Analysis

Name Servers

The authoritative name servers for sfunet.com are 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

At least some of sfunet.com's name servers are shared with other domains, for example atglobal.co.jp, wellnessdesign.net, sonicstyle.net and two more.

Hostnames that resolve to two IP addresses:

01.dnsv.jp maps to two IP addresses — 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp maps to two IP addresses — 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp maps to two IP addresses — 157.7.35.53 and 2400:8500:3fff::53.

Hosts with just one IP address:

02.dnsv.jp points to the IP address 157.7.33.53.

Mail Servers

Mail for sfunet.com is handled by a single mail server, sfunet.sakura.ne.jp.

The mail server configuration of sfunet.com is identical to that of other domains — sfunet.sakura.ne.jp being one example.

There is one IP number for sfunet.sakura.ne.jp: 49.212.243.60.