AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

NIKOLI.CO.JP Nikoli - The leading company of the logic puzzles

nikoli.co.jp Website Information

Daily Unique Visits: 3,398

Daily Page Views: 13,592

Income Per Day: $38

Estimated Value: $20,520

This website is located in United States and is using following IP address 162.43.120.199. See the complete list of popular websites hosted in United States.

nikoli.co.jp is registered under .JP top-level domain. Please check other sites in .JP zone.

Website nikoli.co.jp is using the following name servers:

  • ns-1143.awsdns-14.org
  • ns-1603.awsdns-08.co.uk
  • ns-22.awsdns-02.com
  • ns-517.awsdns-00.net

and is probably hosted by XSERVER Xserver Inc., JP. See the full list of other websites hosted by XSERVER Xserver Inc., JP.

The highest website nikoli.co.jp position in Alexa rank database was 21698 and the lowest rank position was 999775. Current position of nikoli.co.jp in Alexa rank database is 369363.

Desktop speed score of nikoli.co.jp (82/100) is better than the results of 74.03% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of nikoli.co.jp (71/100) is better than the results of 21.61% of other sites and means that the page is not mobile-friendly.

Mobile speed score of nikoli.co.jp (71/100) is better than the results of 78.26% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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nikoli.co.jp Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

nikoli.co.jp whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

[ 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]
a. [ドメイン名] NIKOLI.CO.JP
e. [そしきめい] かぶしきがいしゃ にこり
f. [組織名] 株式会社 ニコリ
g. [Organization] Nikoli co., ltd.
k. [組織種別] 株式会社
l. [Organization Type] Stock Company
m. [登録担当者] JY2812JP
n. [技術連絡担当者] HM3100JP
p. [ネームサーバ] ns-1143.awsdns-14.org
p. [ネームサーバ] ns-22.awsdns-02.com
p. [ネームサーバ] ns-517.awsdns-00.net
p. [ネームサーバ] ns-1603.awsdns-08.co.uk
s. [署名鍵]
[状態] Connected (2022/04/30)
[登録年月日] 1999/04/14
[接続年月日] 1999/08/11
[最終更新] 2021/05/01 01:03:04 (JST)

nikoli.co.jp server information

Servers Location

nikoli.co.jp desktop page speed rank

Last tested: 2019-11-26

Desktop Speed Medium
82/100

nikoli.co.jp Desktop Speed Test Quick Summary


priority - 9Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 91.4KiB (35% reduction).

Compressing https://www.nikoli.co.jp/images/bg.png could save 91KiB (35% reduction).
Compressing https://www.nikoli.co.jp/images/nikoli_logo.png could save 448B (14% reduction).

priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.nikoli.co.jp/en/base.css
https://www.nikoli.co.jp/index.css

priority - 3Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.nikoli.co.jp/en/base.css (expiration not specified)
https://www.nikoli.co.jp/en/css/bg_noise.png (expiration not specified)
https://www.nikoli.co.jp/en/css/bg_stitch.png (expiration not specified)
https://www.nikoli.co.jp/images/bg.png (expiration not specified)
https://www.nikoli.co.jp/images/mascot_nikoli_200x300.png (expiration not specified)
https://www.nikoli.co.jp/images/nikoli_logo.png (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 7.3KiB (82% reduction).

Compressing https://www.nikoli.co.jp/en/base.css could save 7.3KiB (82% reduction).

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 2.5KiB (29% reduction).

Minifying https://www.nikoli.co.jp/en/base.css could save 2.5KiB (29% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 225B (12% reduction).

Minifying https://www.nikoli.co.jp/ could save 225B (12% reduction) after compression.

nikoli.co.jp Desktop Resource Breakdown

Total Resources12
Number of Hosts3
Static Resources7
JavaScript Resources1
CSS Resources1

nikoli.co.jp mobile page speed rank

Last tested: 2019-11-04

Mobile Speed Medium
71/100

nikoli.co.jp Mobile Speed Test Quick Summary


priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.nikoli.co.jp/en/base.css
https://www.nikoli.co.jp/index.css

priority - 9Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 91.4KiB (35% reduction).

Compressing https://www.nikoli.co.jp/images/bg.png could save 91KiB (35% reduction).
Compressing https://www.nikoli.co.jp/images/nikoli_logo.png could save 448B (14% reduction).

priority - 5Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.nikoli.co.jp/en/base.css (expiration not specified)
https://www.nikoli.co.jp/en/css/bg_noise.png (expiration not specified)
https://www.nikoli.co.jp/en/css/bg_stitch.png (expiration not specified)
https://www.nikoli.co.jp/images/bg.png (expiration not specified)
https://www.nikoli.co.jp/images/mascot_nikoli_200x300.png (expiration not specified)
https://www.nikoli.co.jp/images/nikoli_logo.png (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 7.3KiB (82% reduction).

Compressing https://www.nikoli.co.jp/en/base.css could save 7.3KiB (82% reduction).

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 2.5KiB (29% reduction).

Minifying https://www.nikoli.co.jp/en/base.css could save 2.5KiB (29% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 225B (12% reduction).

Minifying https://www.nikoli.co.jp/ could save 225B (12% reduction) after compression.

nikoli.co.jp Mobile Resource Breakdown

Total Resources12
Number of Hosts3
Static Resources7
JavaScript Resources1
CSS Resources1

nikoli.co.jp mobile page usability

Last tested: 2019-11-04

Mobile Usability Medium
71/100

nikoli.co.jp Mobile Usability Test Quick Summary


priority - 40Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 958 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="https://www.nikoli.co.jp/ja/">Japanese</a> falls outside the viewport.
The element <a href="https://www.ni…/en/index.html">English</a> falls outside the viewport.
The element <a href="https://www.ni…n/sitemap.html">Site map</a> falls outside the viewport.
The element <div id="head_midashi">Welcome to WEB…nes and books.</div> falls outside the viewport.
The element <a href="https://www.ni…les/index.html">Puzzles</a> falls outside the viewport.
The element <a href="https://www.ni…n/publication/">Publication</a> falls outside the viewport.
The element <a href="https://www.ni…howtoget-e.htm">Purchase Books</a> falls outside the viewport.
The element <br> falls outside the viewport.
The element <p>ニコリはパズルの雑誌や単行本…logic puzzles.</p> falls outside the viewport.
The element <p>新聞、雑誌、ゲームソフトなど…zzles for you.</p> falls outside the viewport.
The element <p>言語を選択してください。…your language.</p> falls outside the viewport.
The element <a href="/en/">English</a> falls outside the viewport.
The element <a href="/ja/">Japanese</a> falls outside the viewport.
The element <div></div> falls outside the viewport.
The element <a href="https://nikoli…any/index.html">Company Profile</a> falls outside the viewport.
The element <a href="https://nikoli…y/privacy.html">Privacy Policy</a> falls outside the viewport.
The element <a href="https://nikoli…_policies.html">Store Policies</a> falls outside the viewport.
The element <a href="https://nikoli…n/contact.html">Contact</a> falls outside the viewport.
The element <br> falls outside the viewport.
The element <b>© 2001-2019 NIKOLI Co., Ltd.</b> falls outside the viewport.

nikoli.co.jp HTML validation

Errors

Malformed byte sequence: “a5”.

Line: 5 Column: - 32
"......" Line: 5 Column: - 35
"......" Line: 5 Column: - 38
"......" Line: 5 Column: - 41
"......" Line: 5 Column: - 46
"......" Line: 5 Column: - 49
"......" Line: 5 Column: - 52
"......" Line: 5 Column: - 55
"......" Line: 5 Column: - 80
"......" Line: 5 Column: - 87
"......" Line: 6 Column: - 35
"......" Line: 6 Column: - 38
"......" Line: 6 Column: - 47
"......" Line: 6 Column: - 57
"......" Line: 6 Column: - 66
"......" Line: 6 Column: - 73
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"......" Line: 6 Column: - 77
"......" Line: 6 Column: - 89
"......" Line: 6 Column: - 96
"......" Line: 6 Column: - 98
"......" Line: 6 Column: - 103
"......" Line: 65 Column: - 9
"......" Line: 65 Column: - 12
"......" Line: 65 Column: - 19
"......" Line: 65 Column: - 28
"......" Line: 65 Column: - 30
"......" Line: 65 Column: - 32
"......" Line: 68 Column: - 32
"......" Line: 68 Column: - 35
"......" Line: 68 Column: - 40
"......" Line: 74 Column: - 14
"......" Line: 74 Column: - 18
"......" Line: 74 Column: - 20
"......" Line: 74 Column: - 38
"......" Line: 96 Column: - 6
"......" Line: 115 Column: - 6
"......"

Malformed byte sequence: “ba”.

Line: 5 Column: - 34
"......" Line: 5 Column: - 40
"......" Line: 5 Column: - 54
"......" Line: 5 Column: - 86
"......" Line: 6 Column: - 37
"......" Line: 6 Column: - 56
"......" Line: 6 Column: - 88
"......" Line: 6 Column: - 102
"......" Line: 6 Column: - 108
"......" Line: 65 Column: - 11
"......" Line: 68 Column: - 39
"......" Line: 74 Column: - 37
"......"

Malformed byte sequence: “eb”.

Line: 5 Column: - 36
"......" Line: 5 Column: - 56
"......" Line: 5 Column: - 88
"......" Line: 6 Column: - 39
"......"

Malformed byte sequence: “bb”.

Line: 5 Column: - 43
"......" Line: 68 Column: - 44
"......" Line: 74 Column: - 10
"......" Line: 74 Column: - 12
"......"

Malformed byte sequence: “ef”.

Line: 5 Column: - 44
"......"

Malformed byte sequence: “b3”.

Line: 5 Column: - 48
"......" Line: 6 Column: - 46
"......" Line: 6 Column: - 65
"......" Line: 6 Column: - 80
"......" Line: 65 Column: - 18
"......" Line: 65 Column: - 37
"......" Line: 68 Column: - 34
"......" Line: 74 Column: - 31
"......" Line: 96 Column: - 13
"......" Line: 96 Column: - 15
"......" Line: 115 Column: - 13
"......" Line: 115 Column: - 15
"......"

Malformed byte sequence: “ea”.

Line: 5 Column: - 50
"......"

Malformed byte sequence: “c4”.

Line: 5 Column: - 57
"......" Line: 6 Column: - 40
"......" Line: 74 Column: - 41
"......"

Malformed byte sequence: “ae”.

Line: 5 Column: - 59
"......" Line: 6 Column: - 42
"......"

Malformed byte sequence: “bf”.

Line: 5 Column: - 61
"......" Line: 74 Column: - 5
"......" Line: 96 Column: - 9
"......" Line: 115 Column: - 9
"......"

Malformed byte sequence: “f4”.

Line: 5 Column: - 62
"......"

Malformed byte sequence: “c6”.

Line: 5 Column: - 63
"......"

Malformed byte sequence: “c8”.

Line: 5 Column: - 64
"......" Line: 6 Column: - 60
"......" Line: 68 Column: - 63
"......"

Malformed byte sequence: “eb”, “a5”.

Line: 5 Column: - 84
"......" Line: 6 Column: - 86
"......" Line: 6 Column: - 100
"......"

Malformed byte sequence: “a1”.

Line: 6 Column: - 43
"......" Line: 6 Column: - 119
"......" Line: 65 Column: - 40
"......" Line: 68 Column: - 68
"......" Line: 74 Column: - 8
"......" Line: 74 Column: - 16
"......" Line: 74 Column: - 51
"......" Line: 80 Column: - 23
"......" Line: 96 Column: - 10
"......" Line: 115 Column: - 10
"......"

Malformed byte sequence: “ea”, “a1”.

Line: 6 Column: - 48
"......" Line: 6 Column: - 67
"......"

Malformed byte sequence: “c7”.

Line: 6 Column: - 50
"......" Line: 115 Column: - 18
"......"

Malformed byte sequence: “a4”.

Line: 6 Column: - 53
"......" Line: 6 Column: - 76
"......" Line: 6 Column: - 111
"......" Line: 6 Column: - 115
"......" Line: 65 Column: - 31
"......" Line: 65 Column: - 36
"......" Line: 65 Column: - 38
"......" Line: 68 Column: - 57
"......" Line: 68 Column: - 59
"......" Line: 68 Column: - 60
"......" Line: 74 Column: - 26
"......" Line: 74 Column: - 28
"......" Line: 74 Column: - 30
"......" Line: 74 Column: - 32
"......" Line: 74 Column: - 34
"......" Line: 74 Column: - 45
"......" Line: 74 Column: - 47
"......" Line: 74 Column: - 48
"......" Line: 80 Column: - 17
"......" Line: 80 Column: - 19
"......" Line: 80 Column: - 21
"......" Line: 80 Column: - 22
"......" Line: 96 Column: - 12
"......" Line: 96 Column: - 14
"......" Line: 96 Column: - 16
"......" Line: 96 Column: - 18
"......" Line: 115 Column: - 12
"......" Line: 115 Column: - 14
"......" Line: 115 Column: - 16
"......"

Malformed byte sequence: “eb”, “bd”.

Line: 6 Column: - 58
"......" Line: 68 Column: - 61
"......"

Malformed byte sequence: “d0”.

Line: 6 Column: - 59
"......" Line: 68 Column: - 62
"......"

Malformed byte sequence: “f8”.

Line: 6 Column: - 70
"......" Line: 65 Column: - 22
"......"

Malformed byte sequence: “bc”.

Line: 6 Column: - 71
"......" Line: 65 Column: - 23
"......" Line: 74 Column: - 17
"......" Line: 96 Column: - 11
"......" Line: 115 Column: - 11
"......"

Malformed byte sequence: “b0”.

Line: 6 Column: - 72
"......" Line: 65 Column: - 24
"......"

Malformed byte sequence: “b5”.

Line: 6 Column: - 74
"......" Line: 65 Column: - 29
"......" Line: 80 Column: - 20
"......"

Malformed byte sequence: “a3”.

Line: 6 Column: - 79
"......" Line: 6 Column: - 120
"......" Line: 65 Column: - 41
"......" Line: 68 Column: - 69
"......" Line: 74 Column: - 52
"......" Line: 80 Column: - 24
"......"

Malformed byte sequence: “ef”, “a5”.

Line: 6 Column: - 82
"......"

Malformed byte sequence: “eb”, “a4”.

Line: 6 Column: - 90
"......" Line: 6 Column: - 104
"......" Line: 65 Column: - 13
"......" Line: 68 Column: - 41
"......" Line: 74 Column: - 39
"......"

Malformed byte sequence: “aa”.

Line: 6 Column: - 95
"......" Line: 6 Column: - 114
"......" Line: 80 Column: - 11
"......"

Malformed byte sequence: “ce”.

Line: 6 Column: - 105
"......"

Malformed byte sequence: “c0”.

Line: 6 Column: - 106
"......" Line: 80 Column: - 6
"......" Line: 80 Column: - 18
"......"

Malformed byte sequence: “a9”.

Line: 6 Column: - 107
"......"

Malformed byte sequence: “ee”, “a4”.

Line: 6 Column: - 109
"......"

Malformed byte sequence: “ea”, “a4”.

Line: 6 Column: - 116
"......" Line: 65 Column: - 20
"......" Line: 68 Column: - 36
"......"

Malformed byte sequence: “b9”.

Line: 6 Column: - 118
"......" Line: 68 Column: - 48
"......" Line: 68 Column: - 54
"......" Line: 68 Column: - 67
"......" Line: 74 Column: - 50
"......"

Internal encoding declaration “euc-jp” disagrees with the actual encoding of the document (“utf-8”).

Line: 4 Column: 1 - 23
"..."> <head> <meta charset="euc-jp"> <meta..."

Malformed byte sequence: “f1”, “bc”.

Line: 65 Column: - 15
"......"

Malformed byte sequence: “bd”.

Line: 65 Column: - 39
"......"

Malformed byte sequence: “a8”.

Line: 68 Column: - 43
"......" Line: 74 Column: - 11
"......"

Malformed byte sequence: “ef”, “a4”.

Line: 68 Column: - 45
"......"

Malformed byte sequence: “e4”.

Line: 68 Column: - 46
"......"

Malformed byte sequence: “d4”.

Line: 68 Column: - 49
"......"

Malformed byte sequence: “cb”.

Line: 68 Column: - 50
"......"

Malformed byte sequence: “f2”.

Line: 68 Column: - 52
"......" Line: 74 Column: - 40
"......" Line: 80 Column: - 9
"......"

Malformed byte sequence: “b7”.

Line: 68 Column: - 56
"......" Line: 74 Column: - 6
"......" Line: 74 Column: - 44
"......"

Malformed byte sequence: “a2”.

Line: 74 Column: - 9
"......" Line: 74 Column: - 25
"......" Line: 74 Column: - 27
"......"

Malformed byte sequence: “b2”.

Line: 74 Column: - 15
"......"

Malformed byte sequence: “c1”.

Line: 74 Column: - 29
"......" Line: 74 Column: - 33
"......" Line: 80 Column: - 10
"......"

Malformed byte sequence: “b8”.

Line: 80 Column: - 5
"......" Line: 80 Column: - 7
"......"

Malformed byte sequence: “ec”, “a4”.

Line: 80 Column: - 8
"......"

Malformed byte sequence: “c2”.

Line: 80 Column: - 12
"......"

Malformed byte sequence: “af”.

Line: 80 Column: - 16
"......"

Malformed byte sequence: “ab”.

Line: 96 Column: - 17
"......"

Malformed byte sequence: “e9”.

Line: 96 Column: - 19
"......"

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 91 Column: 38 - 83
"...:-450px;"><img src="images/mascot_nikoli_200x300.png" /></div>..."

Stray end tag “body”.

Line: 117 Column: 1 - 7
"...��ޤ� --> </body> </htm..."

Warnings

Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)

Line: 74 Column: - 13
"..."> ��ʹ����������ॽ�եȤʤɡ���..."

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nikoli.co.jp Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

nikoli.co.jp TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.