🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`microstep-study.com`

DNSSEC	⚠️ Not signed
A	2403:3a00:201:1d:49:212:198:238^{🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`www2998.sakura.ne.jp`
A	49.212.198.238^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
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	`microstep-study.com` ⭐
		A	2403:3a00:201:1d:49:212:198:238^{🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www2998.sakura.ne.jp`
		A	49.212.198.238^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www2998.sakura.ne.jp`
TXT	`v=spf1 a:www2998.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2024-04-16 #2

`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=1794350376

MX for

microstep-study.com

Same first word

microstep-study.com

Previous names

Next names

DNS History

12 records (6 active, 6 former)

●NSmaster.dns.ne.jp2026-08-22 → 2026-11-10 · 5 obs

○ 2020-02-08 12:31:32
● 2026-08-22 21:27:18
○ 2026-10-14 19:43:10
● 2026-11-03 01:08:42
● 2026-11-10 22:45:10

●NSns1.dns.ne.jp2026-08-22 → 2026-11-10 · 3 obs

○ 2020-02-08 12:31:32
● 2026-08-22 21:27:18
● 2026-11-10 22:45:10

○NSns1.xserver.jp2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

●NSns2.dns.ne.jp2026-08-22 → 2026-11-10 · 3 obs

○ 2020-02-08 12:31:32
● 2026-08-22 21:27:18
● 2026-11-10 22:45:10

○NSns2.xserver.jp2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

○NSns3.xserver.jp2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

○NSns4.xserver.jp2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

○NSns5.xserver.jp2020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

●MXmicrostep-study.com2020-02-08 → 2026-11-10 · 4 obs

● 2020-02-08 12:31:32
○ 2026-10-14 19:43:10
● 2026-11-03 01:08:42
● 2026-11-10 22:45:10

○A183.181.97.1182020-02-08 → 2020-02-08 · 3 obs

● 2020-02-08 12:31:32
○ 2026-08-22 21:27:18
○ 2026-11-10 22:45:10

●A2403:3a00:201:1d:49:212:198:2382026-08-22 → 2026-11-10 · 5 obs

○ 2020-02-08 12:31:32
● 2026-08-22 21:27:18
○ 2026-10-14 19:43:10
● 2026-11-03 01:08:42
● 2026-11-10 22:45:10

●A49.212.198.2382026-08-22 → 2026-11-10 · 5 obs

○ 2020-02-08 12:31:32
● 2026-08-22 21:27:18
○ 2026-10-14 19:43:10
● 2026-11-03 01:08:42
● 2026-11-10 22:45:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
microstep-study.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)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 2821ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.212.198.238`
AAAA	1	`2403:3a00:201:1d:49:212:198:238`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`microstep-study.com (pri: 10)`
TXT	1	`v=spf1 a:www2998.sakura.ne.jp mx ~all`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

Analysis

Mail Server Role

microstep-study.com is listed as a mail server for itself.

IP Addresses

microstep-study.com resolves to the IP addresses 49.212.198.238 and 2403:3a00:201:1d:49:212:198:238

ecofuel.co.jp, mathaca.com, big-bell.co.jp and two other host names share IP numbers with microstep-study.com.

Name Servers

Three name servers are authoritative for microstep-study.com: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

microstep-study.com shares at least some of its name servers with other domains, including harinaikaclinic-kakogawa.com, mazsan.sakura.ne.jp, higaclinic.com and two others.

Three hostnames, one IP address apiece: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

Mail for microstep-study.com is handled by one mail server — microstep-study.com.

microstep-study.com points to two IP addresses: 49.212.198.238 and 2403:3a00:201:1d:49:212:198:238.

microstep-study.com - robtex.com