koken-ltd.co.jp website information.
koken-ltd.co.jp domain name is registered by .JP top-level domain registry. See the other sites registred in .JP domain zone.
Following name servers are specified for koken-ltd.co.jp domain:
- ns.koken-ltd.co.jp
- ns-tk023.ocn.ad.jp
and probably website koken-ltd.co.jp is hosted by AKAMAI-AS - Akamai Technologies, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AKAMAI-AS - Akamai Technologies, Inc., US hosting company.
According to Alexa traffic rank the highest website koken-ltd.co.jp position was 34075 (in the world). The lowest Alexa rank position was 996920. Now website koken-ltd.co.jp ranked in Alexa database as number 555851 (in the world).
Website koken-ltd.co.jp Desktop speed measurement score (74/100) is better than the results of 57.94% of other sites shows that the page desktop performance can be improved.
koken-ltd.co.jp Mobile usability score (89/100) is better than the results of 31.01% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of koken-ltd.co.jp (63/100) is better than the results of 61.76% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Sep-22-2024 | 555,851 | -2,113 |
| Sep-21-2024 | 553,738 | -12,404 |
| Sep-20-2024 | 541,334 | 5,783 |
| Sep-19-2024 | 547,117 | -2,357 |
| Sep-18-2024 | 544,760 | 5,532 |
| Sep-17-2024 | 550,292 | -2,888 |
| Sep-16-2024 | 547,404 | 1,137 |
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koken-ltd.co.jp Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
koken-ltd.co.jp whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
koken-ltd.co.jp server information
koken-ltd.co.jp desktop page speed rank
Last tested: 2019-11-25
Desktop Speed
Medium
74/100
koken-ltd.co.jp Desktop Speed Test Quick Summary
priority - 10 Enable compression
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priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 5 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
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Remove render-blocking JavaScript:
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http://www.koken-ltd.co.jp/common/js/jquery.cookie.js?date=20161209
http://www.koken-ltd.co.jp/common/js/common.js?date=20161209
http://www.koken-ltd.co.jp/common/js/thickbox.js?date=20161209
http://www.koken-ltd.co.jp/common/js/page-scroller.js?date=20161209
http://www.koken-ltd.co.jp/common/js/jquery.cookie.js?date=20161209
http://www.koken-ltd.co.jp/common/js/common.js?date=20161209
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Optimize CSS Delivery of the following:
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http://www.koken-ltd.co.jp/common/css/base.css?date=20161209
http://www.koken-ltd.co.jp/common/css/style.css?date=20161209
http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209
http://www.koken-ltd.co.jp/common/css/base.css?date=20161209
http://www.koken-ltd.co.jp/common/css/style.css?date=20161209
http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209
priority - 7 Optimize images
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priority - 7 Leverage browser caching
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Leverage browser caching for the following cacheable resources:
http://www.koken-ltd.co.jp/common/images/copyright.gif (expiration not specified)
http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/foot_btn03.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/loading.gif (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn02.png (expiration not specified)
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http://www.koken-ltd.co.jp/images/top_head_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn02.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_logo.png (expiration not specified)
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http://www.google-analytics.com/analytics.js (2 hours)
http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg (expiration not specified)
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http://www.koken-ltd.co.jp/common/images/loading.gif (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn01.png (expiration not specified)
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http://www.koken-ltd.co.jp/images/top_gnav_btn05.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn01.png (expiration not specified)
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http://www.koken-ltd.co.jp/images/top_logo.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_main.jpg (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 1 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 9.9KiB (41% reduction).
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priority - 1 Minify CSS
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priority - 0 Minify HTML
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koken-ltd.co.jp Desktop Resources
| Total Resources | 28 |
| Number of Hosts | 5 |
| Static Resources | 14 |
| JavaScript Resources | 6 |
| CSS Resources | 4 |
koken-ltd.co.jp Desktop Resource Breakdown
koken-ltd.co.jp mobile page speed rank
Last tested: 2019-11-26
Mobile Speed
Bad
63/100
koken-ltd.co.jp Mobile Speed Test Quick Summary
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 5 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
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http://www.koken-ltd.co.jp/common/js/jquery.cookie.js?date=20161209
http://www.koken-ltd.co.jp/common/js/common.js?date=20161209
http://www.koken-ltd.co.jp/common/js/thickbox.js?date=20161209
http://www.koken-ltd.co.jp/common/js/page-scroller.js?date=20161209
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http://www.koken-ltd.co.jp/common/js/common.js?date=20161209
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http://www.koken-ltd.co.jp/common/js/page-scroller.js?date=20161209
Optimize CSS Delivery of the following:
http://www.koken-ltd.co.jp/common/css/reset.css?date=20161209
http://www.koken-ltd.co.jp/common/css/base.css?date=20161209
http://www.koken-ltd.co.jp/common/css/style.css?date=20161209
http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209
http://www.koken-ltd.co.jp/common/css/base.css?date=20161209
http://www.koken-ltd.co.jp/common/css/style.css?date=20161209
http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209
priority - 10 Leverage 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:
http://www.koken-ltd.co.jp/common/images/copyright.gif (expiration not specified)
http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/foot_btn03.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/loading.gif (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn02.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn03.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn04.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn05.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn02.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_logo.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_main.jpg (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)
http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/foot_btn03.jpg (expiration not specified)
http://www.koken-ltd.co.jp/common/images/loading.gif (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn02.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn03.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn04.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_gnav_btn05.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn01.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_head_btn02.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_logo.png (expiration not specified)
http://www.koken-ltd.co.jp/images/top_main.jpg (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 10 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
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Compressing http://www.koken-ltd.co.jp/common/css/base.css?date=20161209 could save 12.8KiB (77% reduction).
Compressing http://www.koken-ltd.co.jp/common/js/thickbox.js?date=20161209 could save 8KiB (68% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/style.css?date=20161209 could save 6.8KiB (73% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209 could save 3.2KiB (75% reduction).
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Compressing http://www.koken-ltd.co.jp/common/css/reset.css?date=20161209 could save 1.2KiB (56% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/base.css?date=20161209 could save 12.8KiB (77% reduction).
Compressing http://www.koken-ltd.co.jp/common/js/thickbox.js?date=20161209 could save 8KiB (68% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/style.css?date=20161209 could save 6.8KiB (73% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209 could save 3.2KiB (75% reduction).
Compressing http://www.koken-ltd.co.jp/common/js/page-scroller.js?date=20161209 could save 2.8KiB (53% reduction).
Compressing http://www.koken-ltd.co.jp/common/js/jquery.cookie.js?date=20161209 could save 2.8KiB (65% reduction).
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Compressing http://www.koken-ltd.co.jp/ could save 2KiB (59% reduction).
Compressing http://www.koken-ltd.co.jp/common/css/reset.css?date=20161209 could save 1.2KiB (56% reduction).
priority - 7 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 68.8KiB (42% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_main.jpg could save 50.7KiB (49% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_logo.png could save 7.5KiB (27% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_gnav_btn02.png could save 1.7KiB (31% reduction).
Compressing http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg could save 1.6KiB (51% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_gnav_btn01.png could save 1.6KiB (31% reduction).
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Compressing http://www.koken-ltd.co.jp/common/images/foot_btn03.jpg could save 1.1KiB (53% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_head_btn02.png could save 152B (27% reduction).
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Compressing http://www.koken-ltd.co.jp/images/top_logo.png could save 7.5KiB (27% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_gnav_btn02.png could save 1.7KiB (31% reduction).
Compressing http://www.koken-ltd.co.jp/common/images/foot_btn02.jpg could save 1.6KiB (51% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_gnav_btn01.png could save 1.6KiB (31% reduction).
Compressing http://www.koken-ltd.co.jp/images/top_gnav_btn04.png could save 1.5KiB (29% reduction).
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Compressing http://www.koken-ltd.co.jp/common/images/foot_btn03.jpg could save 1.1KiB (53% reduction).
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priority - 1 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 9.9KiB (41% reduction).
Minifying http://www.koken-ltd.co.jp/common/js/thickbox.js?date=20161209 could save 3.5KiB (31% reduction).
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priority - 1 Minify 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 7.3KiB (23% reduction).
Minifying http://www.koken-ltd.co.jp/common/css/base.css?date=20161209 could save 2.7KiB (17% reduction).
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Minifying http://www.koken-ltd.co.jp/common/css/style.css?date=20161209 could save 2.2KiB (24% reduction).
Minifying http://www.koken-ltd.co.jp/common/css/thickbox.css?date=20161209 could save 1.6KiB (38% reduction).
Minifying http://www.koken-ltd.co.jp/common/css/reset.css?date=20161209 could save 843B (38% reduction).
priority - 0 Minify 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 419B (13% reduction).
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koken-ltd.co.jp Mobile Resources
| Total Resources | 28 |
| Number of Hosts | 5 |
| Static Resources | 14 |
| JavaScript Resources | 6 |
| CSS Resources | 4 |
koken-ltd.co.jp Mobile Resource Breakdown
koken-ltd.co.jp mobile page usability
Last tested: 2019-11-26
Mobile Usability
Good
89/100
koken-ltd.co.jp Mobile Usability Test Quick Summary
priority - 10 Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
priority - 0 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="/english/top.htm"></a> is close to 1 other tap targets.koken-ltd.co.jp similar domains
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koken-ltd.co.jp Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
koken-ltd.co.jp TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.