Atcoder.jp Web Analysis and Statistics

Website Summary

  • When was the website Atcoder.jp released?

    Atcoder.jp was registered on November 15, 2014 (9 years 5 months 25 days ago).

  • What is the traffic rank for Atcoder.jp?

    Website Atcoder.jp ranked 22,007 globally and 5,091 in China.

  • How many people visit Atcoder.jp each day?

    Atcoder.jp has about 54,000 visits and 230,000 pageviews per day.

  • How much does Atcoder.jp earn a month?

    Each month Atcoder.jp can earn $11,700 from advertising revenue.

  • How much is Atcoder.jp worth?

    Estimated value of Atcoder.jp is $280,000

  • What IP addresses does Atcoder.jp resolve to?

    Atcoder.jp resolves to the IP addresses 52.194.34.212

  • Where is Atcoder.jp server located?

    Atcoder.jp's server is located in Tokyo, Tokyo, Japan, 214-0021.

Atcoder.jp's metrics:

Global traffic rank:
22,007
Traffic rank in China:
5,091
Domain authority:
46 / 100
Daily income:
$390.00
Estimated Worth:
$280,000
Owner info:
Whois Privacy Protection Service by VALUE-DOMAIN / [email protected] / 06-6241-6585
Website category:
Marketing/Merchandising
Safety status:
Safe

HTML Analysis

HTML Meta tags:

Title: AtCoder

Description: AtCoder is a programming contest site for anyone from beginners to experts. We hold weekly programming contests online.

Logo: atcoder.jp

HTML elements:

H1 Headings:
0
H2 Headings:
0
H3 Headings:
8
H4 Headings:
4
H5 Headings:
0
H6 Headings:
0
Total Images:
23
Total IFRAMEs:
0

Links analysis:

Total links:
91
Internal links:
48
Internal links (nofollow):
0
External links:
17
External links (nofollow):
0

HTML resources breakdown:

The homepage of atcoder.jp contains 47 resources, the total size is 388.04 KB. They are distributed as follows:

Resource type Resource count Size Percent
Document 2 7.21 KB 1.9 %
Image 14 61.79 KB 15.9 %
Font 3 47.45 KB 12.2 %
Script 19 239.92 KB 61.8 %
Stylesheet 5 29.52 KB 7.6 %
Media 0 0 0 %
Other 4 2.15 KB 0.6 %

In addition, the atcoder.jp homepage also uses 12 third-party resources, the total size is 117.31 KB.

HTTP Header:

Http-Version: 1.1
Status-Code: 200
Status: 200 OK
Date: Tue, 21 Feb 2023 14:18:00 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Server: nginx
Vary: Accept-Encoding
Cache-Control: no-cache, no-store, must-revalidate, private
Expires: Fri, 1 Jan 2010 00:00:00 GMT
Pragma: no-cache
X-Content-Type-Options: nosniff
X-Xss-Protection: 1; mode=block
Content-Encoding: gzip

Atcoder.jp Traffic Analysis

Daily unique visitors:
54,000
Daily pageviews:
230,000
Daily pageviews per visitor:
4.3
Monthly visits:
1,620,000
Annual visits:
19,710,000

Google Lighthouse Audit

Google Lighthouse is an open-source, automated tool for measuring the quality of web pages. Google Lighthouse audits websites on two separate mobile and desktop environments. Audit results are based on scores from 1-100 and are divided into 5 parts:

  • Performance: This is the most important part, it evaluates the performance of your website. Performance based on Core Web Vitals and key parameters such as First Contentful Paint (FCP), First Input Delay (FID), Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS).
  • Accessibility: Test user accessibility to your web application.
  • Best Practices: Website Trust and Safety testing, extensions, XSS, HTTPS...
  • SEO (on page): These checks ensure that your page is following basic search engine optimization advice.
  • Progressive Web App (PWA): Check out the modern technologies used on your web app.

Here are the results of the Google Lighthouse audit for the website atcoder.jp:

On Mobile

50
Performance
59
Accessibility
75
Best Practices
79
SEO
0-49 50-89 90-100

On Desktop

95
Performance
83
Accessibility
75
Best Practices
82
SEO (on page)

Atcoder.jp SSL Certificate Information

atcoder.jp supports HTTPS with the following certificate information:

Common name: atcoder.jp
SANs: atcoder.jp
Serial Number: 0CC9F136332F69C6BFDF2348421DA112
Signature Algorithm: RSA-SHA256
Issuer: Amazon RSA 2048 M02
Fingerprint: a2ab5dc4dafe62554347cb432247532599851dd8
FingerprintSha256: f02bbf875c0f264287a1701482697315382fe45ae9791b06f1718b85348ea6c6

Atcoder.jp Domain Name Information

Domain TLD:
jp
Registration Date:
November 15, 2014
Expiration Date:
November 30, 2023
Domain Age:
9 years 5 months 25 days
Domain Status:
Active

Domain Nameserver Information:

Host IP Address Country
ns-1144.awsdns-15.org 205.251.196.120 πŸ‡ΊπŸ‡Έ United States
ns-96.awsdns-12.com 205.251.192.96 πŸ‡ΊπŸ‡Έ United States

Full WHOIS Lookup:

[ 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:
[Domain Name] ATCODER.JP

[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]

[Created on] 2014/11/15
[Expires on] 2023/11/30
[Status] Active
[Last Updated] 2022/12/01 01:05:08 (JST)

Contact Information:
[Name] Whois Privacy Protection Service by VALUE-DOMAIN
[Email] [email protected]
[Web Page] https://www.value-domain.com/
[Postal code] 530-0011
[Postal Address]
[Phone] 06-6241-6585
[Fax] 06-6374-0121

Atcoder.jp Server Information

Server IP Address:
52.194.34.212
Hosted Country:
πŸ‡―πŸ‡΅ Japan
Latitude, longitude:
35.6895 , 139.692
Location:
Tokyo, Tokyo, Japan, 214-0021

DNS Record Analysis:

Host Type TTL Extra
atcoder.jp A 60 IP: 52.199.86.28
atcoder.jp A 60 IP: 52.194.34.212
atcoder.jp NS 86400 Target: ns-1144.awsdns-15.org
atcoder.jp NS 86400 Target: ns-1543.awsdns-00.co.uk
atcoder.jp NS 86400 Target: ns-890.awsdns-47.net
atcoder.jp NS 86400 Target: ns-96.awsdns-12.com
atcoder.jp SOA 900 MNAME: ns-96.awsdns-12.com
RNAME: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum TTL: 86400
atcoder.jp MX 300 Priority: 30
Target: aspmx4.googlemail.com
atcoder.jp MX 300 Priority: 30
Target: aspmx5.googlemail.com
atcoder.jp MX 300 Priority: 10
Target: aspmx.l.google.com
atcoder.jp MX 300 Priority: 20
Target: alt1.aspmx.l.google.com
atcoder.jp MX 300 Priority: 20
Target: alt2.aspmx.l.google.com
atcoder.jp MX 300 Priority: 30
Target: aspmx2.googlemail.com
atcoder.jp MX 300 Priority: 30
Target: aspmx3.googlemail.com
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
atcoder.jp TXT 300 TXT: google-site-verification=IIyyB5yMWakA7SnvZLuqk-eBDlEj647aY0Rq-c80uIg

1 websites similar to Atcoder.jp

1.Usaco.org(15% similarity)

usaco.org Rank:117,511 Worth:$44,000

USACO

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