russianblue.net - robtex.com

russianblue.net

DNSSEC⚠️ Not signed
A2401:2500:10a:102f:133:242:249:76🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww4166.sakura.ne.jp
A133.242.249.76🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
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
MXrussianblue.net ⭐
A2401:2500:10a:102f:133:242:249:76🇯🇵 SAKURA-A2401:2500::/32 (ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww4166.sakura.ne.jp
A133.242.249.76🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww4166.sakura.ne.jp
TXTv=spf1 a:www4166.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2020-09-28 #23

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=1774686357
WOT: SAFE (62/100)

MX for

russianblue.net

Subdomains

www.russianblue.net

Same first word

russianblue.info
russianblue.jp
russianblue.dk
russianblue.at
russianblue.net

Similar names

bluerussian.com

DNS History

10 records (6 active, 4 former)

20162017201820192020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpns1.extrem.jpns2.extrem.jpMXrussianblue.netmail.russianblue.netA133.242.249.762401:2500:10a:102f:133:242:249:7659.106.167.73
●NSmaster.dns.ne.jp2026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
●NSns1.dns.ne.jp2026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
○NSns1.extrem.jp2015-08-05 → 2020-02-27 · 3 obs
● 2015-08-05 11:19:22
● 2020-02-27 00:12:30
○ 2026-03-28 08:55:34
●NSns2.dns.ne.jp2026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
○NSns2.extrem.jp2015-08-05 → 2020-02-27 · 3 obs
● 2015-08-05 11:19:22
● 2020-02-27 00:12:30
○ 2026-03-28 08:55:34
○MXmail.russianblue.net2015-08-05 → 2020-02-27 · 3 obs
● 2015-08-05 11:19:22
● 2020-02-27 00:12:30
○ 2026-03-28 08:55:34
●MXrussianblue.net2026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
●A133.242.249.762026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
●A2401:2500:10a:102f:133:242:249:762026-03-28 → 2026-03-28 · 2 obs
○ 2020-02-27 00:12:30
● 2026-03-28 08:55:34
○A59.106.167.732015-08-05 → 2020-02-27 · 3 obs
● 2015-08-05 11:19:22
● 2020-02-27 00:12:30
○ 2026-03-28 08:55:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
russianblue.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 russianblue.net (unsigned zone)

⏱️ Timing

Total: 947ms | Queries: -

📄 Records

TypeCountSample Data
A1133.242.249.76
AAAA12401:2500:10a:102f:133:242:249:76
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1russianblue.net (pri: 10)
TXT1v=spf1 a:www4166.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Hierarchy

russianblue.net is the parent of www.russianblue.net.

Mail Server Role

russianblue.net serves as the mail server for russianblue.net.

IP Addresses

The entity russianblue.net points to two IP numbers: 2401:2500:10a:102f:133:242:249:76 and 133.242.249.76.

For instance, other host names dantrust.co.jp, andokougyou.com, hyuga-h.com, vmorita.com and nisui-dousoukai.com share IP numbers with russianblue.net.

Name Servers

The delegation for russianblue.net is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

russianblue.net shares name servers with other domains at least partially, for example tanimuraiin.com, madep.sakura.ne.jp, ishimura.sakura.ne.jp, repair-cs.com and vnt.jp.

These name servers are commonly used with dns.sakura.ad.jp.

Host names with a single IP address: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

russianblue.net is handled by a single mail server, russianblue.net.

russianblue.net resolves to two IPs: 2401:2500:10a:102f:133:242:249:76 and 133.242.249.76.