btech.jp - dns.ninja
btech.jp
| DNSSEC | โ ๏ธ Not signed | ||||||
| A | 140.227.151.153๐ฏ๐ต InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | 140-227-151-153.pro.static.arena.ne.jp | ||||||
| NS | 01.dnsv.jp โญ | ||||||
| A | 2400:8500:3300::53๐ฏ๐ต GMO-DNS2400:8500:3300::/48 GMO Internet,inc. | ||||||
| PTR | 01.dnsv.jp | ||||||
| A | 157.7.32.53๐ฏ๐ต GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 01.dnsv.jp | ||||||
| NS | 02.dnsv.jp | ||||||
| A | 157.7.33.53๐ฏ๐ต GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 02.dnsv.jp | ||||||
| NS | 03.dnsv.jp | ||||||
| A | 2400:8500:3000::53๐ฏ๐ต GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | 03.dnsv.jp | ||||||
| A | 157.7.34.53๐ฏ๐ต GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 03.dnsv.jp | ||||||
| NS | 04.dnsv.jp | ||||||
| A | 2400:8500:3fff::53๐ฏ๐ต GMO-DNS2400:8500:3fff::/48 GMO Internet,inc. | ||||||
| PTR | 04.dnsv.jp | ||||||
| A | 157.7.35.53๐ฏ๐ต GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 04.dnsv.jp | ||||||
| MX | mail2.btech.jp โญ | ||||||
| A | 140.227.151.153๐ฏ๐ต InfoSphere140.227.0.0/16 INFOSPHERE | ||||||
| PTR | 140-227-151-153.pro.static.arena.ne.jp | ||||||
| TXT | google-site-verification=5WfQO9DyQ5XPD-s_kwS07RqluS-MjVKco2WPwprZiKA | ||||||
| TXT | google-site-verification=TcWJTjyVnGnxk2y0aWm3hvTw6a-RRvPtQWLNOMHEsyA | ||||||
| TXT | v=spf1 ip4:140.227.151.153 ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1780569963 | ||||||
jp
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | z.dns.jp โญ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1780807502 | ||||||
Subdomains
Same first word
Similar names
DNS History
8 records (6 active, 2 former)
โNS03.dnsv.jp2017-02-04 โ 2026-06-07 ยท 3 obs
โ 2017-02-04 17:03:18
โ 2026-06-07 05:27:36
โNS04.dnsv.jp2017-02-04 โ 2026-06-07 ยท 3 obs
โ 2017-02-04 17:03:18
โ 2026-06-07 05:27:36
โMXmail2.btech.jp2026-04-13 โ 2026-06-07 ยท 3 obs
โ 2026-04-13 04:36:56
โ 2026-06-07 05:27:36
โMXmx.btech.jp2015-06-14 โ 2017-06-14 ยท 4 obs
โ 2017-06-14 14:07:32
โ 2026-04-13 04:36:56
โ 2026-06-07 05:27:36
โA140.227.151.1532026-04-13 โ 2026-06-07 ยท 3 obs
โ 2026-04-13 04:36:56
โ 2026-06-07 05:27:36
โA203.138.185.622015-06-14 โ 2017-06-14 ยท 4 obs
โ 2017-06-14 14:07:32
โ 2026-04-13 04:36:56
โ 2026-06-07 05:27:36
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| btech.jp | 04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp | 7 records |
โ Authoritative Response
Server:157.7.35.53
NS records: 04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for btech.jp (unsigned zone)
โฑ๏ธ Timing
Total: 1423ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.227.151.153 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 1 | mail2.btech.jp (pri: 10) |
| TXT | 3 | google-site-verification=5WfQO9DyQ5XPD-s, google-site-verification=TcWJTjyVnGnxk2y... |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
๐ Glue Records Collected
Total: 7
Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)
Analysis
Hierarchy
mail2.btech.jp and novelty.btech.jp are both subdomains of btech.jp.
IP Addresses
btech.jp resolves to one IP address: 140.227.151.153.
mail2.btech.jp, www.ism-inc.net, ism-inc.net and two other host names share IP numbers with btech.jp.
Name Servers
btech.jp carries NS records pointing to 4 name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
btech.jp shares at least some of its name servers with other domains, including j-bunka.jp, molplus.net, cyber-rank.jp and two others.
Hostnames that resolve to two IP addresses:
01.dnsv.jp maps to two IP addresses โ 157.7.32.53 and 2400:8500:3300::53.
03.dnsv.jp maps to two IP addresses โ 157.7.34.53 and 2400:8500:3000::53.
04.dnsv.jp maps to two IP addresses โ 157.7.35.53 and 2400:8500:3fff::53.
Host names with one IP number:
02.dnsv.jp points to the IP address 157.7.33.53.
Mail Servers
Mail for btech.jp is handled by a single mail server, mail2.btech.jp.
The mail server configuration of btech.jp is identical to that of other domains โ novelty.btech.jp being one example.
There is one IP number for mail2.btech.jp: 140.227.151.153.