6.2 sec in total
787 ms
4.9 sec
461 ms
Click here to check amazing I Mc content for Japan. Otherwise, check out these important facts you probably never knew about i-mc.co.jp
はじめるをサポート 伊豆唯一の温水屋外ダイビングプールでPADI ダイビングライセンスを取得しよう! 伊豆は沖縄と共に日本のダイビングのCカード取得のメッカといわれています、私どもは東伊豆を拠点に初心者のためのダイビングスクールからインストラクター開発を開催しています。伊豆では珍しいプールのあるダイビングスクールです。
Visit i-mc.co.jpWe analyzed I-mc.co.jp page load time and found that the first response time was 787 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
i-mc.co.jp performance score
name
value
score
weighting
Value4.3 s
17/100
10%
Value32.4 s
0/100
25%
Value25.3 s
0/100
10%
Value19,440 ms
0/100
30%
Value0.274
44/100
15%
Value40.9 s
0/100
10%
787 ms
370 ms
202 ms
185 ms
359 ms
Our browser made a total of 92 requests to load all elements on the main page. We found that 25% of them (23 requests) were addressed to the original I-mc.co.jp, 36% (33 requests) were made to Image1.shopserve.jp and 16% (15 requests) were made to I-mc.is.shopserve.jp. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Image1.shopserve.jp.
Page size can be reduced by 233.7 kB (26%)
900.1 kB
666.4 kB
In fact, the total size of I-mc.co.jp main page is 900.1 kB. 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 562.3 kB which makes up the majority of the site volume.
Potential reduce by 33.9 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 11.6 kB, which is 28% 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 33.9 kB or 83% of the original size.
Potential reduce by 10.1 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. I Mc images are well optimized though.
Potential reduce by 124.8 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 124.8 kB or 57% of the original size.
Potential reduce by 64.9 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. I-mc.co.jp needs all CSS files to be minified and compressed as it can save up to 64.9 kB or 81% of the original size.
Number of requests can be reduced by 29 (42%)
69
40
The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I Mc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
i-mc.co.jp
787 ms
default.css
370 ms
top.css
202 ms
subpage1.css
185 ms
subpage2.css
359 ms
subpage3.css
369 ms
subpage4.css
392 ms
subpage5.css
351 ms
dc.js
41 ms
back.jpg
529 ms
touch01.jpg
1032 ms
calmred.jpg
1032 ms
calmwtyl.jpg
1032 ms
calmwtpk.jpg
1030 ms
calmwtbl.jpg
1031 ms
calmwtgn.jpg
1030 ms
calmbkgn.jpg
1539 ms
calmwt.jpg
1570 ms
calmbk.jpg
1544 ms
i450tbk.jpg
1188 ms
i450tbl.jpg
1201 ms
i450tw.jpg
1228 ms
i300bl.jpg
1603 ms
i300bk.jpg
1612 ms
top_bt_contact.jpg
523 ms
bt_blog1.jpg
531 ms
top_course1_off.jpg
532 ms
top_course2_off.jpg
537 ms
top_course3_off.jpg
547 ms
top_message_off.jpg
1017 ms
get_adobe_reader.gif
1018 ms
sidetouch.jpg
467 ms
rss.gif
219 ms
sp.gif
174 ms
line1.gif
180 ms
br_info1.gif
194 ms
icon_pickup.gif
222 ms
qr.cgi
372 ms
top_img_add.gif
1021 ms
header.jpg
1008 ms
rss.html
401 ms
embed
156 ms
back_left.gif
989 ms
title_left.jpg
990 ms
back_left_p.gif
991 ms
title_right.jpg
1000 ms
back_right.gif
1000 ms
hline.gif
331 ms
icon_eye01.gif
411 ms
icon_eye02.gif
489 ms
tracking.php
1129 ms
inpage_linkid.js
19 ms
back_footer.jpg
933 ms
sp.gif
1450 ms
0992f33945a94632a64d2587cfa6f814embedcompiled_fastui.css
11 ms
0992f33945a94632a64d2587cfa6f814embedcompiled__en.js
21 ms
client.js
55 ms
line1.gif
1837 ms
br_info1.gif
1776 ms
cb=gapi.loaded_0
10 ms
postmessageRelay
43 ms
3193398744-postmessagerelay.js
20 ms
rpc:shindig_random.js
32 ms
cb=gapi.loaded_0
3 ms
logo-plus.png
40 ms
googlelogo_color_46x16dp.png
62 ms
proxy.html
88 ms
blank.gif
34 ms
menu_arrow_open.gif
32 ms
btn_menu6.gif
36 ms
combined_v22.png
51 ms
rss_feed.js
213 ms
cb=gapi.loaded_0
3 ms
back.jpg
1501 ms
top_bt_contact.jpg
1833 ms
events
495 ms
bt_blog1.jpg
1542 ms
top_course1_off.jpg
1885 ms
top_course2_off.jpg
2274 ms
top_course3_off.jpg
2252 ms
rss_feed.cgi
992 ms
top_message_off.jpg
1780 ms
get_adobe_reader.gif
1554 ms
header.jpg
2492 ms
back_left.gif
1790 ms
title_left.jpg
1953 ms
back_left_p.gif
2176 ms
back_right.gif
2172 ms
back_footer.jpg
2520 ms
title_right.jpg
2185 ms
img_blog1.gif
180 ms
img_blog1.gif
1203 ms
i-mc.co.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.
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
i-mc.co.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
i-mc.co.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
EUC-JP
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I-mc.co.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 I-mc.co.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
i-mc.co.jp
Open Graph description is not detected on the main page of I Mc. 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: