jtk-advance.com - robtex.com

jtk-advance.com

DNSSEC⚠️ Not signed
A153.127.20.242🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRs1.star-cloud.com
NSs1.star-cloud.com ⭐ ⚠️ Not in parent delegation
A153.127.20.242🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRs1.star-cloud.com
NSdns.people-server.net ⚠️ Not in parent delegation
A133.242.134.111🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRdns.people-server.net
NSns1.people-server.net ⚠️ Not in zone NS records
A133.242.134.111🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRdns.people-server.net
NSns2.people-server.net ⚠️ Not in zone NS records
A49.212.36.80🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRv2.people-server.net
NSpeople-server.net ⚠️ Not in parent delegation
A49.212.36.80🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRv2.people-server.net
MXmail.jtk-advance.com ⭐
A153.127.20.242🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRs1.star-cloud.com
TXTv=spf1 +ip4:153.127.20.242 ~all
SOAs1.star-cloud.comroot@s1.star-cloud.com 2025-11-26 #4

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=1777020116

Subdomains

mail.jtk-advance.com

Same first word

jtk-advance.com

DNS History

9 records (7 active, 2 former)

2017201820192020202120222023202420252026NSdns.people-server.netns1.people-server.netns2.people-server.netpeople-server.nets1.star-cloud.coms3.star-cloud.comMXmail.jtk-advance.comA153.127.20.242153.120.77.93
●NSdns.people-server.net2026-03-03 → 2026-04-24 · 3 obs
○ 2016-12-14 12:50:02
● 2026-03-03 04:45:44
● 2026-04-24 08:59:28
●NSns1.people-server.net2026-03-03 → 2026-04-24 · 3 obs
○ 2016-12-14 12:50:02
● 2026-03-03 04:45:44
● 2026-04-24 08:59:28
●NSns2.people-server.net2026-03-03 → 2026-04-24 · 3 obs
○ 2016-12-14 12:50:02
● 2026-03-03 04:45:44
● 2026-04-24 08:59:28
●NSpeople-server.net2016-12-14 → 2026-04-24 · 2 obs
● 2016-12-14 12:50:02
● 2026-04-24 08:59:28
●NSs1.star-cloud.com2026-03-03 → 2026-04-24 · 3 obs
○ 2016-12-14 12:50:02
● 2026-03-03 04:45:44
● 2026-04-24 08:59:28
○NSs3.star-cloud.com2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 12:50:02
○ 2026-03-03 04:45:44
○ 2026-04-24 08:59:28
●MXmail.jtk-advance.com2016-12-14 → 2026-04-24 · 2 obs
● 2016-12-14 12:50:02
● 2026-04-24 08:59:28
○A153.120.77.932016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 12:50:02
○ 2026-03-03 04:45:44
○ 2026-04-24 08:59:28
●A153.127.20.2422026-03-03 → 2026-04-24 · 3 obs
○ 2016-12-14 12:50:02
● 2026-03-03 04:45:44
● 2026-04-24 08:59:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net...-
jtk-advance.comns1.people-server.net, ns2.people-server.net-

✅ Authoritative Response

Server:133.242.134.111

NS records: ns1.people-server.net, ns2.people-server.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jtk-advance.com (unsigned zone)

⏱️ Timing

Total: 1967ms | Queries: -

📄 Records

TypeCountSample Data
A1153.127.20.242
NS3dns.people-server.net, s1.star-cloud.com...
MX1mail.jtk-advance.com (pri: 5)
TXT1v=spf1 +ip4:153.127.20.242 ~all
SOA1s1.star-cloud.com root.s1.star-cloud.com

Analysis

Hierarchy

jtk-advance.com is the parent of mail.jtk-advance.com.

IP Addresses

jtk-advance.com points to a single IP number: 153.127.20.242.

other host names for instance mail.srf-gakusyujyuku.com, s1.star-cloud.com, mail.chubu-wing.com, fujimotonouen.com and mail.trunk-oki.com share IP numbers with jtk-advance.com.

Name Servers

jtk-advance.com is delegated to five name servers: people-server.net, s1.star-cloud.com, dns.people-server.net, ns1.people-server.net and ns2.people-server.net.

jtk-advance.com at least partially shares name servers with other domains, for instance toyoshima-reform.com, s10.star-cloud.com, psychic-counseling.com, k-kraft.com and needs2018.com.

these name servers are commonly used with ik1-121-67400.vs.sakura.ne.jp, ik1-325, s4.star-cloud.com, ik1-416-40235.vs.sakura.ne.jp, s7.star-cloud.com and s9.star-cloud.com.

Host names with a single IP

people-server.net points to 49.212.36.80

s1.star-cloud.com points to 153.127.20.242

dns.people-server.net points to 133.242.134.111

ns1.people-server.net points to 133.242.134.111

ns2.people-server.net points to 49.212.36.80

Hosts pointing to 49.212.36.80: people-server.net and ns2.people-server.net

Hosts pointing to 133.242.134.111: dns.people-server.net and ns1.people-server.net

Mail Servers

jtk-advance.com is handled by a single mail server, mail.jtk-advance.com.

Host name mail.jtk-advance.com points to IP address 153.127.20.242.