atcoder.jp
- Domain Power global ranking: #65,764
Its Domain Power Rank is relatively high. This domain was registered at least 10 years ago. Links from a broad range of domains appear in the observed data.
- Global Rank
- #65,764
▼ 6,024
- Rank in TLD
- #1,594
▼ 91
- Referring Domains
- 1,082
–
- Avg. Referrer Power Rank
- 22.9
- Subdomains
- 351
- Domain age
- 11 yr 11 mo
Link Overview
- Avg. Referrer Power Rank
- 22.9
- Median Referrer Power Rank
- 18.2
- Referring Domains
- 1,082
- Linked Domains
- 301
Referring Domains by Power Rank
0–9 294
10–19 291
20–29 208
30–39 101
40–49 76
50–59 51
60–69 32
70–79 21
80–89 6
90–100 2
Total 1,082
Referring Domains
| Referring domain | Power Rank | Global Rank |
|---|---|---|
| github.com | 93.6 | #19 |
| t.me | 90.0 | #50 |
| mozilla.org | 89.8 | #52 |
| linktr.ee | 84.7 | #161 |
| arxiv.org | 83.9 | #197 |
| hatena.ne.jp | 82.7 | #270 |
| yahoo.co.jp | 81.5 | #348 |
| huggingface.co | 81.0 | #392 |
| dev.to | 77.3 | #807 |
| wisc.edu | 77.3 | #812 |
Basic Information
- TLD
- .jpJapan
- Registration date
- 15 Nov 2014
- Last updated
- 18 Sept 2026
- Expires
- 30 Nov 2026 (25 days remaining)
- Domain statuses
- Active
- Registry
- Japan Registry Services Co., Ltd.
- Registrar
- VALUE-DOMAIN
Subdomain
beta.atcoder.jpcareer.atcoder.jpabc001.contest.atcoder.jpabc002.contest.atcoder.jpabc003.contest.atcoder.jpabc004.contest.atcoder.jpabc005.contest.atcoder.jpabc006.contest.atcoder.jpabc007.contest.atcoder.jpabc008.contest.atcoder.jpabc009.contest.atcoder.jpabc010.contest.atcoder.jpabc011.contest.atcoder.jpabc012.contest.atcoder.jpabc015.contest.atcoder.jpabc016.contest.atcoder.jpabc019.contest.atcoder.jpabc021.contest.atcoder.jpabc025.contest.atcoder.jpabc030.contest.atcoder.jp
DNS
| Type | Name | TTL | Value |
|---|---|---|---|
| A | atcoder.jp | 60 | 108.156.172.7 |
| A | atcoder.jp | 60 | 108.156.172.46 |
| A | atcoder.jp | 60 | 108.156.172.47 |
| A | atcoder.jp | 60 | 108.156.172.67 |
| MX | atcoder.jp | 300 | 10 aspmx.l.google.com |
| MX | atcoder.jp | 300 | 20 alt1.aspmx.l.google.com |
| MX | atcoder.jp | 300 | 20 alt2.aspmx.l.google.com |
| MX | atcoder.jp | 300 | 30 aspmx2.googlemail.com |
| MX | atcoder.jp | 300 | 30 aspmx3.googlemail.com |
| MX | atcoder.jp | 300 | 30 aspmx4.googlemail.com |
| MX | atcoder.jp | 300 | 30 aspmx5.googlemail.com |
| NS | atcoder.jp | 172800 | ns-1144.awsdns-15.org |
| NS | atcoder.jp | 172800 | ns-1543.awsdns-00.co.uk |
| NS | atcoder.jp | 172800 | ns-890.awsdns-47.net |
| NS | atcoder.jp | 172800 | ns-96.awsdns-12.com |
| SOA | atcoder.jp | 900 | ns-96.awsdns-12.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400 |
| TXT | atcoder.jp | 300 | 1password-site-verification=H3CJM364F5GI5P3VXH2PYFGCKI |
| TXT | atcoder.jp | 300 | MS=ms90685883 |
| TXT | atcoder.jp | 300 | cloudflare_dashboard_sso=f62aac0af9122a7fff211950f317b6df |
| TXT | atcoder.jp | 300 | google-site-verification=IIyyB5yMWakA7SnvZLuqk-eBDlEj647aY0Rq-c80uIg |
| TXT | atcoder.jp | 300 | google-site-verification=iiXXCv8YJjdE0FWPz6zq0ispBt688ytJaOQfOpwuU3A |
| TXT | atcoder.jp | 300 | pardot884953=58ccd91e72a6f94be7450fef89ee32f712f9e18afb5273954e7d09781c220ec1 |
| TXT | atcoder.jp | 300 | stripe-verification=e726551d53f6bea6b1a960e876e9fd88c34f32b723a3b2ecb1a91dfc32fa531d |
| TXT | atcoder.jp | 300 | v=spf1 a:atcoder.jp include:_spf.google.com include:aspmx.pardot.com include:amazonses.com ~all |
Email Authentication
- MX
- Warning
We couldn't check every mail server hostname.
- SPF
- Valid
- DMARC
- Warning
DMARC is set to p=none, which does not ask receiving servers to quarantine or reject failing messages.
Some information is cached or comes from our own analysis, so it may not be current or complete. Our link analysis does not cover every link on the web. Metrics are based on our own methodology and should not be taken as definitive assessments of a domain’s or service’s quality or trustworthiness.