| Desktop | 92/100 | ✔ |
| Mobile | 22/100 | ✘ |
| Field | Data | Result |
|---|---|---|
| Page Size | 36 KB | ✔ |
| Compression | 6 KB (-83.4%) | ✔ |
| Text/Html Ratio | 10238 / 36561 (bytes) = 28% | ✔ |
| Load Time | 1.22 second | ✘ |
| Mobile Ready | 0/100 | ✘ |
| In-Page Links | 73 | ✔ |
| Doc Type | HTML 5 | ✔ |
| Encoding | UTF-8 | ✔ |
| Declared Language | English | ✔ |
| Preferred Domain | Yes | ✔ |
| Robots.txt | Yes | ✔ |
| Url Rewrite | No | ✔ |
| Underscores in url | Yes | ✘ | Images Without ALT | 23 / 23 | ✘ |
| Embedded Objects (Desktop) | No | ✔ |
| Embedded Objects (Mobile) | No | ✔ |
| Iframe | No | ✔ |
| Custom 404 page | Yes | ✔ |
| Email Privacy | Yes | ✔ |
| Gsafe browsing | Yes | ✔ |
| Analytics | No | ✘ |
| W3C Validity | No | ✘ |
| Keywords | Freq | Title | Desc | <H> |
|---|---|---|---|---|
| contest | 40 | ✘ | ✔ | ✘ |
| Ⓐ◉ | 17 | ✘ | ✘ | ✘ |
| atcoder | 13 | ✔ | ✔ | ✘ |
| beginner | 11 | ✘ | ✔ | ✘ |
| will | 9 | ✘ | ✘ | ✘ |
| programming | 9 | ✘ | ✔ | ✘ |
| start | 7 | ✘ | ✘ | ✘ |
| last | 6 | ✘ | ✘ | ✘ |
| forward | 5 | ✘ | ✘ | ✘ |
| looking | 5 | ✘ | ✘ | ✘ |
| hold | 5 | ✘ | ✔ | ✘ |
| regular | 5 | ✘ | ✘ | ✘ |
| half | 4 | ✘ | ✘ | ✘ |
| marathon | 4 | ✘ | ✘ | ✘ |
| number | 4 | ✘ | ✘ | ✘ |
|
With 1.22 seconds in page load, 36 KB of page size and all other reports below, the atcoder.jp has a SEO score of 60 out of 100 |
| Title | AtCoder |
| Description | AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online. |
| Keyword |
| Age | N/a |
| Created | N/a |
| Updated | N/a |
| Expiry | N/a |
| Host | Type | Ttl | Other |
|---|---|---|---|
| atcoder.jp | A | 23 | ip:35.74.224.63 |
| atcoder.jp | A | 23 | ip:52.193.167.102 |
| atcoder.jp | NS | 86363 | target:ns-890.awsdns-47.net |
| atcoder.jp | NS | 86363 | target:ns-1144.awsdns-15.org |
| atcoder.jp | NS | 86363 | target:ns-1543.awsdns-00.co.uk |
| atcoder.jp | NS | 86363 | target:ns-96.awsdns-12.com |
| atcoder.jp | SOA | 900 | mname:ns-96.awsdns-12.comrname:awsdns-hostmaster.amazon.comserial:1refresh:7200retry:900expire:1209600minimum-ttl:86400 |
| atcoder.jp | MX | 300 | pri:30target:aspmx4.googlemail.com |
| atcoder.jp | MX | 300 | pri:30target:aspmx2.googlemail.com |
| atcoder.jp | MX | 300 | pri:30target:aspmx3.googlemail.com |
| atcoder.jp | MX | 300 | pri:20target:alt1.aspmx.l.google.com |
| atcoder.jp | MX | 300 | pri:10target:aspmx.l.google.com |
| atcoder.jp | MX | 300 | pri:30target:aspmx5.googlemail.com |
| atcoder.jp | MX | 300 | pri:20target:alt2.aspmx.l.google.com |
| atcoder.jp | TXT | 300 | txt:google-site-verification=IIyyB5yMWakA7SnvZLuqk-eBDlEj647aY0Rq-c80uIg |
| atcoder.jp | TXT | 300 | txt:pardot884953=58ccd91e72a6f94be7450fef89ee32f712f9e18afb5273954e7d09781c220ec1 |
| atcoder.jp | TXT | 300 | txt:v=spf1 a:atcoder.jp a:api.atcoder.jp +ip4:183.177.145.0/28 include:_spf.google.com include:aspmx.pardot.com ?all |
|
[ JPRS database provides information on network administration. Its use is ] [ restricted to network administration purposes. For further information, ] [ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ] [ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ] Domain Information: [ドメイン情報] [Domain Name] ATCODER.JP [登録者名] AtCoder Inc. [Registrant] AtCoder Inc. [Name Server] ns-96.awsdns-12.com [Name Server] ns-1144.awsdns-15.org [Name Server] ns-890.awsdns-47.net [Name Server] ns-1543.awsdns-00.co.uk [Signing Key] [登録年月日] 2014/11/15 [有効期限] 2022/11/30 [状態] Active [最終更新] 2022/01/20 09:57:43 (JST) Contact Information: [公開連絡窓口] [名前] Whois情報公開代行サービス by バリュードメイン [Name] Whois Privacy Protection Service by VALUE-DOMAIN [Email] whoisproxy@value-domain.com [Web Page] https://www.value-domain.com/ [郵便番号] 530-0011 [住所] 大阪府大阪市北区大深町3-1 グランフロント大阪 タワーB 23階 [Postal Address] [電話番号] 06-6241-6585 [FAX番号] 06-6374-0121 |
| Server IP | 13.114.128.114 |
| Server Location | Japan |
| Service Provider | AMAZON-02 |
| Domains (TLD) | Status |
|---|---|
| atcoder.com | Already Registered |
| atcoder.net | Already Registered |
| atcoder.org | Already Registered |
| atcoder.biz | Already Registered |
| atcoder.io | Already Registered |
| Domains (TLD) | Status |
|---|---|
| qtcoder.jp | Available |
| wtcoder.jp | Available |
| ztcoder.jp | Available |
| xtcoder.jp | Available |
| arcoder.jp | Available |
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