8.6 sec in total
986 ms
7.4 sec
243 ms
Welcome to know-vpd.jp homepage info - get ready to check Know VPD best content for Japan right away, or after learning these important things about know-vpd.jp
ワクチンで防げる病気(VPD)を知って子供たちの命を守ろう。
Visit know-vpd.jpWe analyzed Know-vpd.jp page load time and found that the first response time was 986 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
know-vpd.jp performance score
name
value
score
weighting
Value9.4 s
0/100
10%
Value10.2 s
0/100
25%
Value11.6 s
4/100
10%
Value40 ms
100/100
30%
Value1.11
1/100
15%
Value18.9 s
3/100
10%
986 ms
1179 ms
871 ms
760 ms
419 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 87% of them (46 requests) were addressed to the original Know-vpd.jp, 6% (3 requests) were made to Platform.twitter.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Know-vpd.jp.
Page size can be reduced by 375.1 kB (33%)
1.2 MB
778.3 kB
In fact, the total size of Know-vpd.jp main page is 1.2 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. 30% of websites need less resources to load. Images take 698.0 kB which makes up the majority of the site volume.
Potential reduce by 19.1 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. This page needs HTML code to be minified as it can gain 4.2 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.1 kB or 78% of the original size.
Potential reduce by 23.4 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. Know VPD images are well optimized though.
Potential reduce by 143.5 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 143.5 kB or 68% of the original size.
Potential reduce by 189.1 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. Know-vpd.jp needs all CSS files to be minified and compressed as it can save up to 189.1 kB or 86% of the original size.
Number of requests can be reduced by 10 (21%)
47
37
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Know VPD. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
know-vpd.jp
986 ms
design.css
1179 ms
jquery.min.js
871 ms
bootstrap.js
760 ms
respond.min.js
419 ms
jquery.easing.min.js
422 ms
footerFixed.js
428 ms
font-awesome.min.css
750 ms
accordion.js
592 ms
accordion.css
607 ms
jquery.socialbutton.js
935 ms
hkds.socialbtn.js
786 ms
bt_rcmnd.jpg
175 ms
bt_sitemaps.jpg
166 ms
bt_ask.jpg
189 ms
area_head_bg.png
188 ms
area_head_logo.png
171 ms
vis_vc.png
185 ms
title_vc.png
315 ms
vis_sch.png
323 ms
title_sch.png
509 ms
schedule_s.gif
710 ms
schedule_age0.jpg
1037 ms
ico_link_bs.png
764 ms
bnr_lg_vc_0age.jpg
478 ms
bnr_lg_apl.jpg
638 ms
main_ttl_news.jpg
637 ms
vpd_top_2011_main_ttl_rss.jpg
679 ms
vpd_top_2011_main_ichiran.jpg
793 ms
bnr_md_hbv.jpg
795 ms
bnr_md_yobo_cs.jpg
1018 ms
bnr_md_mbr_list.jpg
876 ms
bnr_md_josei.jpg
943 ms
bnr_md_sch_7age.jpg
951 ms
bnr_md_sch_0age.jpg
1110 ms
bnr_md_vpdlist.jpg
1044 ms
bnr_md_children.jpg
1123 ms
bnr_md_guidebook.jpg
1108 ms
bnr_md_kentei.jpg
1188 ms
bnr_stopFushin.jpg
1205 ms
bnr_md_fb.jpg
1212 ms
main_ttl_jimu.jpg
1265 ms
ga.js
31 ms
NotoSansJP-Bold.otf
4327 ms
NotoSansJP-Regular.otf
5276 ms
NotoSansJP-Black.otf
5108 ms
fontawesome-webfont.woff
1330 ms
widgets.js
4 ms
__utm.gif
19 ms
button.831500944bc3eb7ea5276ccdc3f71d2e.js
20 ms
collect
61 ms
tweet_button.6a78875565a912489e9aef879c881358.ja.html
13 ms
jot
101 ms
know-vpd.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
know-vpd.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
Browser errors were logged to the console
know-vpd.jp SEO score
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
Tap targets are not sized appropriately
JA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Know-vpd.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 Know-vpd.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.
know-vpd.jp
Open Graph description is not detected on the main page of Know VPD. 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: