🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`competitiveprogramming.info`

DNSSEC	⚠️ Not signed
A	2400:8500:2002:3175:160:251:206:130^{🇯🇵 GMOOSK-NET2400:8500:2000::/36 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`v160-251-206-130.w0tu.static.cnode.jp`
A	160.251.206.130^{🇯🇵 GMOOSK-NET160.251.206.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 Stefan Prefixes}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 Stefan Prefixes}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 Stefan Prefixes}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 Stefan Prefixes}
			PTR	`04.dnsv.jp`
MX	`competitiveprogramming.info` ⭐
		A	2400:8500:2002:3175:160:251:206:130^{🇯🇵 GMOOSK-NET2400:8500:2000::/36 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v160-251-206-130.w0tu.static.cnode.jp`
		A	160.251.206.130^{🇯🇵 GMOOSK-NET160.251.206.0/24 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`v160-251-206-130.w0tu.static.cnode.jp`
TXT	`google-site-verification=yB6MDIBG92v0W8EwxsU9pzWLgdrHDW_9B6vHZtJALbs`
TXT	`v=spf1 ip4:160.251.206.130 ~all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1725116748

`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=1789678783

MX for

competitiveprogramming.info

Subdomains

mail.competitiveprogramming.info

Same first word

competitiveprogramming.in

competitiveprogramming.info

competitiveprogramming.workers.dev

competitiveprogramming.wiki

competitiveprogramming.ai

Previous names

competitiveenterprises.info

competitiveexp.info

competitiveintelligence.info

competitiveinventoryacquisitions.info

competitiveinventoryacquisitionsboats.info

competitiveposition.info

competitivepositioning.info

competitivepress.info

Next names

competitivescope.info

competitorai.info

competitors.info

competitorsearch.info

competitorsedge.info

competitveinventoryacquisitions.info

competitveinventoryacquisitionsboats.info

DNS History

9 records (7 active, 2 former)

●NS01.dnsv.jp2016-12-05 → 2026-09-17 · 2 obs

● 2016-12-05 01:19:14
● 2026-09-17 21:18:58

●NS02.dnsv.jp2016-12-05 → 2026-09-17 · 2 obs

● 2016-12-05 01:19:14
● 2026-09-17 21:18:58

●NS03.dnsv.jp2016-12-05 → 2026-09-17 · 2 obs

● 2016-12-05 01:19:14
● 2026-09-17 21:18:58

●NS04.dnsv.jp2016-12-05 → 2026-09-17 · 2 obs

● 2016-12-05 01:19:14
● 2026-09-17 21:18:58

●MXcompetitiveprogramming.info2026-03-05 → 2026-09-17 · 3 obs

○ 2017-07-09 12:11:32
● 2026-03-05 23:27:22
● 2026-09-17 21:18:58

○MXmail.competitiveprogramming.info2016-12-05 → 2017-07-09 · 4 obs

● 2016-12-05 01:19:14
● 2017-07-09 12:11:32
○ 2026-03-05 23:27:22
○ 2026-09-17 21:18:58

○A157.7.243.2512016-12-05 → 2017-07-09 · 4 obs

● 2016-12-05 01:19:14
● 2017-07-09 12:11:32
○ 2026-03-05 23:27:22
○ 2026-09-17 21:18:58

●A160.251.206.1302026-03-05 → 2026-09-17 · 3 obs

○ 2017-07-09 12:11:32
● 2026-03-05 23:27:22
● 2026-09-17 21:18:58

●A2400:8500:2002:3175:160:251:206:1302026-03-05 → 2026-09-17 · 3 obs

○ 2017-07-09 12:11:32
● 2026-03-05 23:27:22
● 2026-09-17 21:18:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info	-
competitiveprogramming.info	02.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp	-

✅ Authoritative Response

Server:157.7.34.53

NS records: 02.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp, 03.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for competitiveprogramming.info (unsigned zone)

⏱️ Timing

Total: 911ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`160.251.206.130`
AAAA	1	`2400:8500:2002:3175:160:251:206:130`
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	1	`competitiveprogramming.info (pri: 10)`
TXT	2	`google-site-verification=yB6MDIBG92v0W8E, v=spf1 ip4:160.251.206.130 ~all`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

Analysis

Hierarchy

competitiveprogramming.info serves as the parent of mail.competitiveprogramming.info.

Mail Server Role

competitiveprogramming.info serves as a mail server for competitiveprogramming.info.

IP Addresses

competitiveprogramming.info resolves to the IP addresses 160.251.206.130 and 2400:8500:2002:3175:160:251:206:130

Additional host names — including v160-251-206-130.w0tu.static.cnode.jp and mail.competitiveprogramming.info — share IP numbers with competitiveprogramming.info.

Name Servers

Four name servers handle the delegation for competitiveprogramming.info: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

competitiveprogramming.info has at least partial name server overlap with other domains, such as wlqne6taigula.net, good-eye.tokyo, playerprofile.jp and two others.

Host names pointing to two IP addresses:

01.dnsv.jp resolves to two addresses: 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp resolves to two addresses: 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp resolves to two addresses: 157.7.35.53 and 2400:8500:3fff::53.

Host names resolving to a single IP address:

The hostname 02.dnsv.jp resolves to 157.7.33.53.

Mail Servers

competitiveprogramming.info uses exactly one mail server, which is competitiveprogramming.info.

competitiveprogramming.info has two IP addresses: 160.251.206.130 and 2400:8500:2002:3175:160:251:206:130.

competitiveprogramming.info - robtex.com