dfour.net - robtex.com

dfour.net

DNSSEC⚠️ Not signed
A49.212.207.43🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3033.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXdfour.net ⭐
A49.212.207.43🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3033.sakura.ne.jp
SOAmaster.dns.ne.jptech@sakura.ad.jp 2013-05-29 #24

net

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=1785392797

MX for

dfour.net

Same first word

dfour.de
dfour.net
dfour.com

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DNS History

5 records (5 active, 0 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXdfour.netA49.212.207.43
●NSmaster.dns.ne.jp2015-08-13 → 2026-07-30 · 2 obs
● 2015-08-13 02:28:28
● 2026-07-30 06:47:52
●NSns1.dns.ne.jp2015-08-13 → 2026-07-30 · 2 obs
● 2015-08-13 02:28:28
● 2026-07-30 06:47:52
●NSns2.dns.ne.jp2015-08-13 → 2026-07-30 · 2 obs
● 2015-08-13 02:28:28
● 2026-07-30 06:47:52
●MXdfour.net2015-08-13 → 2026-07-30 · 2 obs
● 2015-08-13 02:28:28
● 2026-07-30 06:47:52
●A49.212.207.432015-08-13 → 2026-07-30 · 2 obs
● 2015-08-13 02:28:28
● 2026-07-30 06:47:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
dfour.netns1.dns.ne.jp, ns2.dns.ne.jp-

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dfour.net (unsigned zone)

⏱️ Timing

Total: 969ms | Queries: -

📄 Records

TypeCountSample Data
A149.212.207.43
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1dfour.net (pri: 10)
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Mail Server Role

The MX record for dfour.net points back to dfour.net — it is its own mail server.

IP Addresses

dfour.net directs to one IP number, which is 49.212.207.43.

Among the host names that share IP numbers with dfour.net are asnet-gr.sakura.ne.jp, ark-d.jp, y-kato1997.sakura.ne.jp and two others.

Name Servers

dfour.net is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

dfour.net partially shares its NS delegation with several other domains, including lokiworks.info, unt9.net, natural-foundation.com and two others.

These name servers often co-occur with the name servers dns.sakura.ad.jp.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

The MX record for dfour.net points to a single mail server: dfour.net.

dfour.net resolves to a single IP number: 49.212.207.43.