`nextbuilders.net`

DNSSEC	⚠️ Not signed
A	157.7.44.242^{🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`users205.vip.heteml.jp`
NS	`dns01.muumuu-domain.com` ⭐
		A	202.239.23.39^{🇯🇵 IDC202.239.23.0/24 Frontier Inc.}
NS	`dns02.muumuu-domain.com`
		A	160.251.249.62^{🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
MX	`mx-proxy501.heteml.jp` ⭐
		A	157.7.189.17^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
MX	`mx-proxy502.heteml.jp`⁽²⁰⁾
		A	157.7.189.18^{🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
TXT	`v=spf1 include:_spf.heteml.jp include:_spf.salesforce.com include:_spf.mlse...`
SOA	`dns01.muumuu-domain.com`postmaster@nextbuilders.net serial=1708079879

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774825872

Same first word

nextbuilders.net

DNS History

10 records (5 active, 5 former)

○NSdns0.heteml.jp2015-08-06 → 2019-01-30 · 4 obs

● 2015-08-06 09:57:12
● 2019-01-30 01:39:22
○ 2026-03-28 18:50:24
○ 2026-03-29 23:21:54

●NSdns01.muumuu-domain.com2026-03-28 → 2026-03-29 · 3 obs

○ 2019-01-30 01:39:22
● 2026-03-28 18:50:24
● 2026-03-29 23:21:54

●NSdns02.muumuu-domain.com2026-03-28 → 2026-03-29 · 3 obs

○ 2019-01-30 01:39:22
● 2026-03-28 18:50:24
● 2026-03-29 23:21:54

○NSdns1.heteml.jp2015-08-06 → 2019-01-30 · 4 obs

● 2015-08-06 09:57:12
● 2019-01-30 01:39:22
○ 2026-03-28 18:50:24
○ 2026-03-29 23:21:54

○MXmail27.heteml.jp2015-08-06 → 2019-01-30 · 4 obs

● 2015-08-06 09:57:12
● 2019-01-30 01:39:22
○ 2026-03-28 18:50:24
○ 2026-03-29 23:21:54

●MXmx-proxy501.heteml.jp2026-03-28 → 2026-03-29 · 3 obs

○ 2019-01-30 01:39:22
● 2026-03-28 18:50:24
● 2026-03-29 23:21:54

●MXmx-proxy502.heteml.jp2026-03-28 → 2026-03-29 · 3 obs

○ 2019-01-30 01:39:22
● 2026-03-28 18:50:24
● 2026-03-29 23:21:54

○A112.78.219.1852015-08-06 → 2015-08-06 · 3 obs

● 2015-08-06 09:57:12
○ 2015-11-26 07:28:44
○ 2026-03-29 23:21:54

○A157.7.188.2122015-11-26 → 2019-01-30 · 5 obs

○ 2015-08-06 09:57:12
● 2015-11-26 07:28:44
● 2019-01-30 01:39:22
○ 2026-03-28 18:50:24
○ 2026-03-29 23:21:54

●A157.7.44.2422026-03-28 → 2026-03-29 · 3 obs

○ 2019-01-30 01:39:22
● 2026-03-28 18:50:24
● 2026-03-29 23:21:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...	-
nextbuilders.net	dns01.muumuu-domain.com, dns02.muumuu-domain.com	-

✅ Authoritative Response

Server:202.239.23.39

NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nextbuilders.net (unsigned zone)

⏱️ Timing

Total: 868ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.7.44.242`
NS	2	`dns01.muumuu-domain.com, dns02.muumuu-domain.com`
MX	2	`mx-proxy501.heteml.jp (pri: 10), mx-proxy502.heteml.jp (pri: 20)`
TXT	1	`v=spf1 include:_spf.heteml.jp include:_`
SOA	1	`dns01.muumuu-domain.com postmaster.nextb`

Analysis

IP Addresses

nextbuilders.net points to IP number: 157.7.44.242.

Other host names such as kawaii.tips, yugop.net, ceexs.net, www.soniajohnes.com and oblik.co.jp share IPs with nextbuilders.net.

Name Servers

nextbuilders.net is delegated to two name servers: dns01.muumuu-domain.com and dns02.muumuu-domain.com.

nextbuilders.net shares the same name server setup as qooma.com, sweetnsawyer.com, swing1226.com, olivenews.monster and surfeng.co.jp.

nextbuilders.net at least partially shares name servers with other domains, for instance a-po.info, 7mslab.com, o-sam.com, harada-educate.jp and 3067.jp.

Host names with a single IP:

dns01.muumuu-domain.com points to 202.239.23.39.

dns02.muumuu-domain.com points to 160.251.249.62.

Mail Servers

nextbuilders.net is handled by two mail servers: mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.

The mail server setup for nextbuilders.net matches that of other domains, for instance kiborimaedakoubou.com, zero-house.net, 4351.biz, nakamura-setsubi.com and kobayashishouten.com.

Host names with a single IP:

mx-proxy501.heteml.jp points to 157.7.189.17.

mx-proxy502.heteml.jp points to 157.7.189.18.

nextbuilders.net - robtex.com