`math-curation.com`

DNSSEC	⚠️ Not signed
A	133.242.209.231^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`www14457uj.sakura.ne.jp`
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 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}
			PTR	`ns2.dns.ne.jp`
MX	`math-curation.com` ⭐
		A	133.242.209.231^{🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www14457uj.sakura.ne.jp`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2014-08-02 #23

`com`

	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=1774542387

MX for

math-curation.com

Same first word

math-curation.com

Similar names

mantout-archi.com

DNS History

5 records (5 active, 0 former)

●NSmaster.dns.ne.jp2015-06-29 → 2026-03-26 · 2 obs

● 2015-06-29 02:23:06
● 2026-03-26 16:46:46

●NSns1.dns.ne.jp2015-06-29 → 2026-03-26 · 2 obs

● 2015-06-29 02:23:06
● 2026-03-26 16:46:46

●NSns2.dns.ne.jp2015-06-29 → 2026-03-26 · 2 obs

● 2015-06-29 02:23:06
● 2026-03-26 16:46:46

●MXmath-curation.com2015-06-29 → 2026-03-26 · 2 obs

● 2015-06-29 02:23:06
● 2026-03-26 16:46:46

●A133.242.209.2312015-06-29 → 2026-03-26 · 2 obs

● 2015-06-29 02:23:06
● 2026-03-26 16:46:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
math-curation.com	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ Authoritative Response

Server:61.211.236.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for math-curation.com (unsigned zone)

⏱️ Timing

Total: 1038ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`133.242.209.231`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`math-curation.com (pri: 10)`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

Analysis

Mail Server Role

math-curation.com serves as the mail server for math-curation.com.

IP Addresses

math-curation.com points to an IP address: 133.242.209.231.

Other host names, for instance www14457uj.sakura.ne.jp, share IP numbers with math-curation.com.

Name Servers

math-curation.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

math-curation.com at least partially shares name servers with other domains, for instance caretasukeru.com, umikikaku.sakura.ne.jp, hikoshin.com, kankyocreate.sakura.ne.jp and uricom-net.com.

These name servers are commonly used alongside dns.sakura.ad.jp.

Host names with one IP:

master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

math-curation.com is handled by a single mail server.

The host name math-curation.com points to IP 133.242.209.231.

math-curation.com - robtex.com