6.3 sec in total
407 ms
5.6 sec
333 ms
Visit keirin.jp now to see the best up-to-date KEIRIN content for Japan and also check out these interesting facts you probably never knew about keirin.jp
競輪オフィシャルサイト。開催情報、結果、ランキング情報、コラム、日本競輪学校の紹介。
Visit keirin.jpWe analyzed Keirin.jp page load time and found that the first response time was 407 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
keirin.jp performance score
name
value
score
weighting
Value9.1 s
0/100
10%
Value10.7 s
0/100
25%
Value10.7 s
7/100
10%
Value200 ms
90/100
30%
Value0.134
80/100
15%
Value9.6 s
29/100
10%
407 ms
829 ms
308 ms
936 ms
312 ms
Our browser made a total of 144 requests to load all elements on the main page. We found that all of those requests were addressed to Keirin.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Keirin.jp.
Page size can be reduced by 518.1 kB (48%)
1.1 MB
566.7 kB
In fact, the total size of Keirin.jp main page is 1.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 471.9 kB which makes up the majority of the site volume.
Potential reduce by 39.3 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 39.3 kB or 82% of the original size.
Potential reduce by 45.4 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. KEIRIN images are well optimized though.
Potential reduce by 250.2 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 250.2 kB or 73% of the original size.
Potential reduce by 183.2 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Keirin.jp needs all CSS files to be minified and compressed as it can save up to 183.2 kB or 82% of the original size.
Number of requests can be reduced by 77 (54%)
142
65
The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KEIRIN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
keirin.jp
407 ms
829 ms
modern.css
308 ms
jquery.js
936 ms
jquery.idTabs.min.js
312 ms
openwin.js
492 ms
bgiframe.js
335 ms
swfobject.js
613 ms
utility.js
468 ms
jquery-ui.min.js
1491 ms
jquery.cookie.js
630 ms
jquery.json.js
661 ms
menu.setup.js
771 ms
menu.read.js
789 ms
postIBet.js
803 ms
stream.js
829 ms
dataplazaContents.css
1077 ms
top.css
940 ms
designContents.css
966 ms
index.css
993 ms
default.css
788 ms
propertyReset.css
165 ms
commonTools.css
161 ms
print.css
168 ms
bg.gif
165 ms
bg_center.gif
162 ms
logo.gif
166 ms
gl_guest_beginner.gif
165 ms
ic_beginner.png
156 ms
gl_guest_enjoy.gif
157 ms
ic_enjoy.png
311 ms
gl_guest_find.gif
312 ms
ic_find.png
316 ms
gl_guest_vote.gif
330 ms
ic_vote.png
330 ms
gl_guest_dokanto.gif
332 ms
ic_dokanto.png
464 ms
img_login.gif
465 ms
txt_loginID.gif
473 ms
txt_loginPass.gif
496 ms
txt_login.gif
496 ms
btn_login.gif
498 ms
txt_login_forget.gif
618 ms
btn_login_member.gif
618 ms
btn_index_mymenu.gif
632 ms
btn_setting.gif
661 ms
bg_marquee_noflash.gif
661 ms
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768 ms
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768 ms
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990 ms
analytics.js
1074 ms
img_1411089240643.gif
920 ms
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1005 ms
img_1411860646210.gif
1003 ms
img_1415929269659.gif
1001 ms
img_1353912331695.jpg
1001 ms
img_1397518985162.gif
1066 ms
tit_news.gif
925 ms
btn_rss.gif
949 ms
btn_index.gif
999 ms
ico_new.gif
987 ms
ico_news.gif
995 ms
ico_rece2.gif
1055 ms
ico_school.gif
924 ms
ico_zyogai.gif
953 ms
btn_schedule_index.gif
1004 ms
ico_race2.gif
984 ms
ico_g3_s.gif
993 ms
ico_strm_tv.gif
1043 ms
ico_dokanto.gif
925 ms
ico_race1.gif
957 ms
ico_f1_s.gif
1009 ms
ico_night.gif
984 ms
ico_f2_s.gif
994 ms
ico_girls.gif
1032 ms
ico_race3.gif
929 ms
ico_race_end.gif
965 ms
ico_midnight.gif
1018 ms
ico_morning.gif
986 ms
tit_graderace.gif
995 ms
btn_graderace_index.gif
923 ms
ico_g1_s.gif
925 ms
btn_search.gif
946 ms
btn_guide.gif
984 ms
btn_guide01.gif
989 ms
btn_guide02.gif
996 ms
btn_guide03.gif
927 ms
btn_guide04.gif
889 ms
img_1456732342031.gif
970 ms
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980 ms
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990 ms
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928 ms
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939 ms
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994 ms
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928 ms
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940 ms
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951 ms
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994 ms
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974 ms
img_line.gif
943 ms
btn_contact.gif
939 ms
btn_sitemap.gif
952 ms
btn_guide.gif
983 ms
copyright.gif
972 ms
btn_pagetop.gif
981 ms
bg_top.gif
940 ms
bg_txtbox01.gif
950 ms
bg_mymenu.gif
949 ms
bg_main_noflash.gif
964 ms
arrow_03.gif
978 ms
bg_dotgray.gif
969 ms
bg_news.gif
951 ms
bg_schedule.gif
961 ms
bg_tab.gif
949 ms
bg_tab_on.gif
957 ms
dotline_h.gif
974 ms
bg_graderace.gif
953 ms
google_custom_search_watermark.gif
960 ms
bg_bottom.gif
960 ms
gl_guest_beginner_on.gif
946 ms
gl_guest_enjoy_on.gif
950 ms
gl_guest_find_on.gif
951 ms
gl_guest_vote_on.gif
962 ms
gl_guest_dokanto_on.gif
967 ms
btn_setting_on.gif
969 ms
btn_search_on.gif
945 ms
arrow_01.gif
942 ms
arrow_03.gif
936 ms
bg_gray_th.gif
967 ms
bg_gray02.gif
971 ms
dataplazaPrint.css
167 ms
keirin.jp accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[role] values are not valid
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
keirin.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
keirin.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
JA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Keirin.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Keirin.jp main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
keirin.jp
Open Graph description is not detected on the main page of KEIRIN. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: