rk-japan.co.jp website information.
rk-japan.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 rk-japan.co.jp domain:
- ns1.kagoya.net
- ns0.kagoya.net
and probably website rk-japan.co.jp is hosted by AMAZON-02 - Amazon.com, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AMAZON-02 - Amazon.com, Inc., US hosting company.
According to Alexa traffic rank the highest website rk-japan.co.jp position was 31202 (in the world). The lowest Alexa rank position was 999799. Now website rk-japan.co.jp ranked in Alexa database as number 856589 (in the world).
Website rk-japan.co.jp Desktop speed measurement score (61/100) is better than the results of 37.05% of other sites shows that the page desktop performance can be improved.
rk-japan.co.jp Mobile usability score (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of rk-japan.co.jp (55/100) is better than the results of 43.86% 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 |
|---|---|---|
| Nov-28-2024 | N/A | N/A |
| Nov-27-2024 | 856,589 | -8,087 |
| Nov-26-2024 | 848,502 | -2,037 |
| Nov-25-2024 | 846,465 | 13,246 |
| Nov-24-2024 | 859,711 | -4,944 |
| Nov-23-2024 | 854,767 | 3,942 |
| Nov-22-2024 | 858,709 | -10,587 |
Advertisement
rk-japan.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.
rk-japan.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.
rk-japan.co.jp server information
rk-japan.co.jp desktop page speed rank
Last tested: 2019-08-25
Desktop Speed
Bad
61/100
rk-japan.co.jp Desktop Speed Test Quick Summary
priority - 32 Enable 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 307.7KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jquery.js?ver=1.12.4 could save 61.9KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4 could save 53.5KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 33.5KiB (80% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464 could save 31.8KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/ could save 24.7KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 18.6KiB (88% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…or-min.js?ver=20140519 could save 14.4KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 10.7KiB (75% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…x-1.3.8.min.js?ver=1.6 could save 10.3KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 10.1KiB (77% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 9.8KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-emoji-release.min.js?ver=4.8.9 could save 7.4KiB (63% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 4.3KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6 could save 2.7KiB (71% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 1.7KiB (64% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…asing.min.js?ver=1.4.0 could save 1.5KiB (67% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…heel.min.js?ver=3.1.13 could save 1.4KiB (56% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 972B (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 711B (51% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-embed.min.js?ver=4.8.9 could save 647B (47% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 552B (52% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/comment-reply.min.js?ver=4.8.9 could save 489B (46% reduction).
Compressing http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 230B (41% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4 could save 53.5KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 33.5KiB (80% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464 could save 31.8KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/ could save 24.7KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 18.6KiB (88% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…or-min.js?ver=20140519 could save 14.4KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 10.7KiB (75% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…x-1.3.8.min.js?ver=1.6 could save 10.3KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 10.1KiB (77% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 9.8KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-emoji-release.min.js?ver=4.8.9 could save 7.4KiB (63% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 4.3KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6 could save 2.7KiB (71% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 1.7KiB (64% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…asing.min.js?ver=1.4.0 could save 1.5KiB (67% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…heel.min.js?ver=3.1.13 could save 1.4KiB (56% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 972B (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 711B (51% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-embed.min.js?ver=4.8.9 could save 647B (47% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 552B (52% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/comment-reply.min.js?ver=4.8.9 could save 489B (46% reduction).
Compressing http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 230B (41% reduction).
priority - 24 Reduce server response time
In our test, your server responded in 2.6 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 6 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script 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:
http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML
priority - 2 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 20.4KiB (24% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 8.3KiB (20% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 6.1KiB (44% reduction).
Minifying http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 3.2KiB (16% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 2KiB (35% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 556B (21% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 201B (13% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 6.1KiB (44% reduction).
Minifying http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 3.2KiB (16% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 2KiB (35% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 556B (21% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 201B (13% reduction).
priority - 2 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 18KiB (52% reduction).
Compressing and resizing http://www.rk-japan.co.jp/wp-content/uploads/RK_TAKASAGO_header_jp.png could save 14.4KiB (57% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/bnr_contact_ja.png could save 1.2KiB (27% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…s/icon_arrow1_gray.gif could save 1,010B (90% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/footer_pagetop.png could save 971B (68% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/JCA_logo_footer.png could save 371B (24% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/RK_takasago_footer.png could save 246B (26% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/bnr_contact_ja.png could save 1.2KiB (27% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…s/icon_arrow1_gray.gif could save 1,010B (90% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/footer_pagetop.png could save 971B (68% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/JCA_logo_footer.png could save 371B (24% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/RK_takasago_footer.png could save 246B (26% reduction).
priority - 2 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 14.7KiB (47% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 9.3KiB (71% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 3.4KiB (25% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 724B (52% reduction).
Minifying http://connect.facebook.net/ja_JP/all.js could save 671B (39% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 495B (48% reduction).
Minifying http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 3.4KiB (25% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 724B (52% reduction).
Minifying http://connect.facebook.net/ja_JP/all.js could save 671B (39% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 495B (48% reduction).
Minifying http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
priority - 1 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://connect.facebook.net/ja_JP/all.js (20 minutes)
https://google-analytics.com/analytics.js (2 hours)
https://google-analytics.com/analytics.js (2 hours)
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 4.4KiB (13% reduction).
Minifying http://www.rk-japan.co.jp/ could save 4.3KiB (13% reduction).
Minifying http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 125B (22% reduction).
Minifying http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 125B (22% reduction).
rk-japan.co.jp Desktop Resources
| Total Resources | 53 |
| Number of Hosts | 14 |
| Static Resources | 46 |
| JavaScript Resources | 21 |
| CSS Resources | 11 |
rk-japan.co.jp Desktop Resource Breakdown
rk-japan.co.jp mobile page speed rank
Last tested: 2019-08-24
Mobile Speed
Bad
55/100
rk-japan.co.jp Mobile Speed Test Quick Summary
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking script resources and 11 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:
http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML
http://www.rk-japan.co.jp/wp-includes/js/jquery/jquery.js?ver=1.12.4
http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1
http://www.rk-japan.co.jp/wp-includes/js/jquery/jquery.js?ver=1.12.4
http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1
Optimize CSS Delivery of the following:
http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1
http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1
http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464
http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6
http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css
http://fonts.googleapis.com/css?family=Droid+Sans:700|Lato:900|Anton
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css
http://www.rk-japan.co.jp/?custom-css=95897bd0ca
http://www.rk-japan.co.jp/wp-content/plugins/jetpa…s/blank.css?1407565558
http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1
http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464
http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6
http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css
http://fonts.googleapis.com/css?family=Droid+Sans:700|Lato:900|Anton
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519
http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css
http://www.rk-japan.co.jp/?custom-css=95897bd0ca
http://www.rk-japan.co.jp/wp-content/plugins/jetpa…s/blank.css?1407565558
priority - 32 Enable 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 307.7KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jquery.js?ver=1.12.4 could save 61.9KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4 could save 53.5KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 33.5KiB (80% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464 could save 31.8KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/ could save 24.7KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 18.6KiB (88% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…or-min.js?ver=20140519 could save 14.4KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 10.7KiB (75% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…x-1.3.8.min.js?ver=1.6 could save 10.3KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 10.1KiB (77% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 9.8KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-emoji-release.min.js?ver=4.8.9 could save 7.4KiB (63% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 4.3KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6 could save 2.7KiB (71% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 1.7KiB (64% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…asing.min.js?ver=1.4.0 could save 1.5KiB (67% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…heel.min.js?ver=3.1.13 could save 1.4KiB (56% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 972B (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 711B (51% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-embed.min.js?ver=4.8.9 could save 647B (47% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 552B (52% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/comment-reply.min.js?ver=4.8.9 could save 489B (46% reduction).
Compressing http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 230B (41% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…ss/jetpack.css?ver=5.4 could save 53.5KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 33.5KiB (80% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/tablepress-combined.min.css?ver=464 could save 31.8KiB (82% reduction).
Compressing http://www.rk-japan.co.jp/ could save 24.7KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 18.6KiB (88% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…or-min.js?ver=20140519 could save 14.4KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 10.7KiB (75% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…x-1.3.8.min.js?ver=1.6 could save 10.3KiB (65% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 10.1KiB (77% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 9.8KiB (72% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-emoji-release.min.js?ver=4.8.9 could save 7.4KiB (63% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 4.3KiB (73% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…-1.3.8.min.css?ver=1.6 could save 2.7KiB (71% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 1.7KiB (64% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…asing.min.js?ver=1.4.0 could save 1.5KiB (67% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/easy-…heel.min.js?ver=3.1.13 could save 1.4KiB (56% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 972B (60% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 711B (51% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/wp-embed.min.js?ver=4.8.9 could save 647B (47% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 552B (52% reduction).
Compressing http://www.rk-japan.co.jp/wp-includes/js/comment-reply.min.js?ver=4.8.9 could save 489B (46% reduction).
Compressing http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 230B (41% reduction).
priority - 20 Reduce server response time
In our test, your server responded in 1.5 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 2 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 20.4KiB (24% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…themes/plain/plain.css could save 8.3KiB (20% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 6.1KiB (44% reduction).
Minifying http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 3.2KiB (16% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 2KiB (35% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 556B (21% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 201B (13% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/mappr…appress.css?ver=2.47.1 could save 6.1KiB (44% reduction).
Minifying http://www.rk-japan.co.jp/?custom-css=95897bd0ca could save 3.2KiB (16% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ommon_min.css?20140519 could save 2KiB (35% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/themes/biz-ve…tyle_bizvektor_sns.css could save 556B (21% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/styles.css?ver=4.9.1 could save 201B (13% reduction).
priority - 2 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 14.7KiB (47% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…selection.js?ver=4.8.9 could save 9.3KiB (71% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 3.4KiB (25% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 724B (52% reduction).
Minifying http://connect.facebook.net/ja_JP/all.js could save 672B (39% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 495B (48% reduction).
Minifying http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/conta…s/scripts.js?ver=4.9.1 could save 3.4KiB (25% reduction).
Minifying http://www.rk-japan.co.jp/wp-content/plugins/jetpa…photon.js?ver=20130122 could save 724B (52% reduction).
Minifying http://connect.facebook.net/ja_JP/all.js could save 672B (39% reduction) after compression.
Minifying http://www.rk-japan.co.jp/wp-content/plugins/check…/js/style.js?ver=4.8.9 could save 495B (48% reduction).
Minifying http://cdn.mathjax.org/mathjax/latest/MathJax.js?c…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
priority - 1 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://connect.facebook.net/ja_JP/all.js (20 minutes)
https://google-analytics.com/analytics.js (2 hours)
https://google-analytics.com/analytics.js (2 hours)
priority - 1 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 11.3KiB (34% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/RK_TAKASAGO_header_jp.png could save 7.6KiB (31% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/bnr_contact_ja.png could save 1.2KiB (27% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…s/icon_arrow1_gray.gif could save 1,010B (90% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/footer_pagetop.png could save 971B (68% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/JCA_logo_footer.png could save 371B (24% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/RK_takasago_footer.png could save 246B (26% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/bnr_contact_ja.png could save 1.2KiB (27% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…s/icon_arrow1_gray.gif could save 1,010B (90% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/themes/biz-ve…ges/footer_pagetop.png could save 971B (68% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/JCA_logo_footer.png could save 371B (24% reduction).
Compressing http://www.rk-japan.co.jp/wp-content/uploads/RK_takasago_footer.png could save 246B (26% 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 4.4KiB (13% reduction).
Minifying http://www.rk-japan.co.jp/ could save 4.3KiB (13% reduction).
Minifying http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 125B (22% reduction).
Minifying http://www.rk-japan.co.jp/?ga_action=googleanalytics_get_script could save 125B (22% reduction).
rk-japan.co.jp Mobile Resources
| Total Resources | 53 |
| Number of Hosts | 14 |
| Static Resources | 46 |
| JavaScript Resources | 21 |
| CSS Resources | 11 |
rk-japan.co.jp Mobile Resource Breakdown
rk-japan.co.jp mobile page usability
Last tested: 2019-08-24
Mobile Usability
Good
96/100
rk-japan.co.jp Mobile Usability Test Quick Summary
priority - 3 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
The tap target
The tap target
<a href="http://www.rk-japan.co.jp/" class="firstChild lastChild">TOP</a> and 8 others are close to other tap targets.The tap target
<a href="http://www.fac….com/rk.chain/" class="rk_top_links firstChild"></a> and 1 others are close to other tap targets.The tap target
<a href="http://www.rk-japan.co.jp/" class="firstChild lastChild">RK JAPAN co.,ltd.</a> is close to 1 other tap targets.rk-japan.co.jp similar domains
Similar domains:
www.rk-japan.com
www.rk-japan.net
www.rk-japan.org
www.rk-japan.info
www.rk-japan.biz
www.rk-japan.us
www.rk-japan.mobi
www.k-japan.co.jp
www.rk-japan.co.jp
www.ek-japan.co.jp
www.rek-japan.co.jp
www.erk-japan.co.jp
www.dk-japan.co.jp
www.rdk-japan.co.jp
www.drk-japan.co.jp
www.fk-japan.co.jp
www.rfk-japan.co.jp
www.frk-japan.co.jp
www.tk-japan.co.jp
www.rtk-japan.co.jp
www.trk-japan.co.jp
www.r-japan.co.jp
www.rj-japan.co.jp
www.rkj-japan.co.jp
www.rjk-japan.co.jp
www.ri-japan.co.jp
www.rki-japan.co.jp
www.rik-japan.co.jp
www.rm-japan.co.jp
www.rkm-japan.co.jp
www.rmk-japan.co.jp
www.rl-japan.co.jp
www.rkl-japan.co.jp
www.rlk-japan.co.jp
www.ro-japan.co.jp
www.rko-japan.co.jp
www.rok-japan.co.jp
www.rkjapan.co.jp
www.rk-apan.co.jp
www.rk-napan.co.jp
www.rk-jnapan.co.jp
www.rk-njapan.co.jp
www.rk-hapan.co.jp
www.rk-jhapan.co.jp
www.rk-hjapan.co.jp
www.rk-uapan.co.jp
www.rk-juapan.co.jp
www.rk-ujapan.co.jp
www.rk-iapan.co.jp
www.rk-jiapan.co.jp
www.rk-ijapan.co.jp
www.rk-kapan.co.jp
www.rk-jkapan.co.jp
www.rk-kjapan.co.jp
www.rk-mapan.co.jp
www.rk-jmapan.co.jp
www.rk-mjapan.co.jp
www.rk-jpan.co.jp
www.rk-jqpan.co.jp
www.rk-jaqpan.co.jp
www.rk-jqapan.co.jp
www.rk-jwpan.co.jp
www.rk-jawpan.co.jp
www.rk-jwapan.co.jp
www.rk-jspan.co.jp
www.rk-jaspan.co.jp
www.rk-jsapan.co.jp
www.rk-jzpan.co.jp
www.rk-jazpan.co.jp
www.rk-jzapan.co.jp
www.rk-jaan.co.jp
www.rk-jaoan.co.jp
www.rk-japoan.co.jp
www.rk-jaopan.co.jp
www.rk-jalan.co.jp
www.rk-japlan.co.jp
www.rk-jalpan.co.jp
www.rk-japn.co.jp
www.rk-japqn.co.jp
www.rk-japaqn.co.jp
www.rk-japqan.co.jp
www.rk-japwn.co.jp
www.rk-japawn.co.jp
www.rk-japwan.co.jp
www.rk-japsn.co.jp
www.rk-japasn.co.jp
www.rk-japsan.co.jp
www.rk-japzn.co.jp
www.rk-japazn.co.jp
www.rk-japzan.co.jp
www.rk-japa.co.jp
www.rk-japab.co.jp
www.rk-japanb.co.jp
www.rk-japabn.co.jp
www.rk-japah.co.jp
www.rk-japanh.co.jp
www.rk-japahn.co.jp
www.rk-japaj.co.jp
www.rk-japanj.co.jp
www.rk-japajn.co.jp
www.rk-japam.co.jp
www.rk-japanm.co.jp
www.rk-japamn.co.jp
www.rk-japan.net
www.rk-japan.org
www.rk-japan.info
www.rk-japan.biz
www.rk-japan.us
www.rk-japan.mobi
www.k-japan.co.jp
www.rk-japan.co.jp
www.ek-japan.co.jp
www.rek-japan.co.jp
www.erk-japan.co.jp
www.dk-japan.co.jp
www.rdk-japan.co.jp
www.drk-japan.co.jp
www.fk-japan.co.jp
www.rfk-japan.co.jp
www.frk-japan.co.jp
www.tk-japan.co.jp
www.rtk-japan.co.jp
www.trk-japan.co.jp
www.r-japan.co.jp
www.rj-japan.co.jp
www.rkj-japan.co.jp
www.rjk-japan.co.jp
www.ri-japan.co.jp
www.rki-japan.co.jp
www.rik-japan.co.jp
www.rm-japan.co.jp
www.rkm-japan.co.jp
www.rmk-japan.co.jp
www.rl-japan.co.jp
www.rkl-japan.co.jp
www.rlk-japan.co.jp
www.ro-japan.co.jp
www.rko-japan.co.jp
www.rok-japan.co.jp
www.rkjapan.co.jp
www.rk-apan.co.jp
www.rk-napan.co.jp
www.rk-jnapan.co.jp
www.rk-njapan.co.jp
www.rk-hapan.co.jp
www.rk-jhapan.co.jp
www.rk-hjapan.co.jp
www.rk-uapan.co.jp
www.rk-juapan.co.jp
www.rk-ujapan.co.jp
www.rk-iapan.co.jp
www.rk-jiapan.co.jp
www.rk-ijapan.co.jp
www.rk-kapan.co.jp
www.rk-jkapan.co.jp
www.rk-kjapan.co.jp
www.rk-mapan.co.jp
www.rk-jmapan.co.jp
www.rk-mjapan.co.jp
www.rk-jpan.co.jp
www.rk-jqpan.co.jp
www.rk-jaqpan.co.jp
www.rk-jqapan.co.jp
www.rk-jwpan.co.jp
www.rk-jawpan.co.jp
www.rk-jwapan.co.jp
www.rk-jspan.co.jp
www.rk-jaspan.co.jp
www.rk-jsapan.co.jp
www.rk-jzpan.co.jp
www.rk-jazpan.co.jp
www.rk-jzapan.co.jp
www.rk-jaan.co.jp
www.rk-jaoan.co.jp
www.rk-japoan.co.jp
www.rk-jaopan.co.jp
www.rk-jalan.co.jp
www.rk-japlan.co.jp
www.rk-jalpan.co.jp
www.rk-japn.co.jp
www.rk-japqn.co.jp
www.rk-japaqn.co.jp
www.rk-japqan.co.jp
www.rk-japwn.co.jp
www.rk-japawn.co.jp
www.rk-japwan.co.jp
www.rk-japsn.co.jp
www.rk-japasn.co.jp
www.rk-japsan.co.jp
www.rk-japzn.co.jp
www.rk-japazn.co.jp
www.rk-japzan.co.jp
www.rk-japa.co.jp
www.rk-japab.co.jp
www.rk-japanb.co.jp
www.rk-japabn.co.jp
www.rk-japah.co.jp
www.rk-japanh.co.jp
www.rk-japahn.co.jp
www.rk-japaj.co.jp
www.rk-japanj.co.jp
www.rk-japajn.co.jp
www.rk-japam.co.jp
www.rk-japanm.co.jp
www.rk-japamn.co.jp
rk-japan.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.
rk-japan.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.