rontopic.com - dns.ninja

rontopic.com

DNSSEC⚠️ Not signed
A2001:e42:107:201f:163:43:102:51🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN
PTRwww3841.sakura.ne.jp
A163.43.102.51🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 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
MXrontopic.com ⭐
A2001:e42:107:201f:163:43:102:51🇯🇵 SAKURA-B2001:e40::/30 SAKURA Internet Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka 530-0011, JAPAN
PTRwww3841.sakura.ne.jp
A163.43.102.51🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan
PTRwww3841.sakura.ne.jp
TXTv=spf1 a:www3841.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2019-10-30 #23

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=1782542065

MX for

rontopic.com

Same first word

rontopic.com

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DNS History

6 records (6 active, 0 former)

2020202120222023202420252026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXrontopic.comA163.43.102.512001:e42:107:201f:163:43:102:51
●NSmaster.dns.ne.jp2019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58
●NSns1.dns.ne.jp2019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58
●NSns2.dns.ne.jp2019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58
●MXrontopic.com2019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58
●A163.43.102.512019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58
●A2001:e42:107:201f:163:43:102:512019-12-15 → 2026-06-27 · 2 obs
● 2019-12-15 09:34:02
● 2026-06-27 06:41:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
rontopic.comns1.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 rontopic.com (unsigned zone)

⏱️ Timing

Total: 1386ms | Queries: -

📄 Records

TypeCountSample Data
A1163.43.102.51
AAAA12001:e42:107:201f:163:43:102:51
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1rontopic.com (pri: 10)
TXT1v=spf1 a:www3841.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

Analysis

Mail Server Role

rontopic.com is listed as a mail server for itself.

IP Addresses

rontopic.com resolves to the IP addresses 163.43.102.51 and 2001:e42:107:201f:163:43:102:51

asahi-yokohama.com, campaign-sp.com, kogakusha.co.jp and two other host names share IP numbers with rontopic.com.

Name Servers

DNS for rontopic.com is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

rontopic.com partially shares its NS delegation with several other domains, including clinica.jp, malia.jp, vilcaba.sakura.ne.jp 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 all have one IP address each — master.dns.ne.jp directs to 210.224.172.18, ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1.

Mail Servers

Mail for rontopic.com is handled by one mail server — rontopic.com.

The host rontopic.com resolves to 163.43.102.51 and 2001:e42:107:201f:163:43:102:51 — two IP addresses.