`open-support.info`

DNSSEC	⚠️ Not signed
A	49.212.154.140^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www11126uf.sakura.ne.jp`
NS	`dns01.gmoserver.jp` ⭐
		A	157.7.33.81^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`dns01.gmoserver.jp`
NS	`dns02.gmoserver.jp`
		A	157.7.34.81^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`dns02.gmoserver.jp`
MX	`mx.open-support.info` ⭐
		A	160.251.229.96^{🇯🇵 GMOOSK-NET160.251.229.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`mx-10.gmoserver.jp`
TXT	`v=spf1 include:spf.gmoserver.jp ~all`
SOA	`dns01.gmoserver.jp`hostmaster@open-support.info 2022-01-15 #4

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1774401632

Subdomains

mx.open-support.info

www.open-support.info

Same first word

open-support.sakura.ne.jp

open-support.com

open-support.info

DNS History

4 records (4 active, 0 former)

●NSdns01.gmoserver.jp2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 17:43:36
● 2026-03-25 01:30:12

●NSdns02.gmoserver.jp2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 17:43:36
● 2026-03-25 01:30:12

●MXmx.open-support.info2015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 17:43:36
● 2026-03-25 01:30:12

●A49.212.154.1402015-08-17 → 2026-03-25 · 2 obs

● 2015-08-17 17:43:36
● 2026-03-25 01:30:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	c0.info.afilias-nst.info, a0.info.afilias-nst.info, a2.info.afilias-nst.info	-
open-support.info	dns02.gmoserver.jp, dns01.gmoserver.jp	-

✅ Authoritative Response

Server:157.7.34.81

NS records: dns02.gmoserver.jp, dns01.gmoserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for open-support.info (unsigned zone)

⏱️ Timing

Total: 1094ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.212.154.140`
NS	2	`dns01.gmoserver.jp, dns02.gmoserver.jp`
MX	1	`mx.open-support.info (pri: 10)`
TXT	1	`v=spf1 include:spf.gmoserver.jp ~all`
SOA	1	`dns01.gmoserver.jp hostmaster.open-suppo`

Analysis

Hierarchy

open-support.info is a parent of mx.open-support.info and www.open-support.info.

IP Addresses

open-support.info points to a single IP number: 49.212.154.140.

Other host names such as www.open-support.info and www11126uf.sakura.ne.jp share IP numbers with open-support.info.

Name Servers

Delegation for open-support.info rests with two name servers, dns01.gmoserver.jp and dns02.gmoserver.jp.

open-support.info shares the same name server setup as other domains, including succession.mobi, gentara.net, ryutora.com, tanydesign.com and tokusho.net.

open-support.info shares name servers with other domains at least partially, for example mp-mobile.com.

Host names with one IP number: dns01.gmoserver.jp points to 157.7.33.81; dns02.gmoserver.jp points to 157.7.34.81.

Mail Servers

open-support.info is handled by a single mail server, mx.open-support.info.

mx.open-support.info points to a single IP: 160.251.229.96.

open-support.info - robtex.com