2.7 sec in total
708 ms
1.7 sec
234 ms
Click here to check amazing Coscom content for Australia. Otherwise, check out these important facts you probably never knew about coscom.co.jp
Learn Japanese Online - You can learn Japanese Conversation, Kanji, Hiragana Katakana and Phrases Online
Visit coscom.co.jpWe analyzed Coscom.co.jp page load time and found that the first response time was 708 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
coscom.co.jp performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value2.6 s
88/100
25%
Value5.3 s
57/100
10%
Value280 ms
81/100
30%
Value0.068
96/100
15%
Value2.9 s
96/100
10%
708 ms
340 ms
336 ms
366 ms
367 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Coscom.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Coscom.co.jp.
Page size can be reduced by 50.4 kB (21%)
238.0 kB
187.6 kB
In fact, the total size of Coscom.co.jp main page is 238.0 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. 15% of websites need less resources to load. Images take 204.5 kB which makes up the majority of the site volume.
Potential reduce by 10.2 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 10.2 kB or 75% of the original size.
Potential reduce by 22.7 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. Obviously, Coscom needs image optimization as it can save up to 22.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 17.5 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. Coscom.co.jp needs all CSS files to be minified and compressed as it can save up to 17.5 kB or 89% of the original size.
We found no issues to fix!
25
25
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coscom. According to our analytics all requests are already optimized.
coscom.co.jp
708 ms
topjss_indextop5520.css
340 ms
logo6mmweb.png
336 ms
topbtn_eng2.png
366 ms
topbtn_jp1.png
367 ms
top-learnjp.gif
366 ms
kinko_70yy.png
739 ms
tenki20160229_2.png
502 ms
enpitsu.gif
506 ms
jpfont.gif
507 ms
imagetop_20160228.png
700 ms
pr501top_ejp123.png
879 ms
pr501top_atonce.png
669 ms
pr501top_250vb.png
848 ms
pr501top_2001kanji.png
843 ms
img_ipad301_250vb_topleft.png
838 ms
img_ipad301_atonce_topleft.png
875 ms
img_top_book_250vb.png
1105 ms
topimage_supple01.png
1006 ms
topimage_supple02.png
1010 ms
top_pakipic.gif
1018 ms
bar105_gurade.png
714 ms
obi_speaker.png
715 ms
obi_megane.png
837 ms
speaker.gif
842 ms
megane25.gif
852 ms
coscom.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
coscom.co.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
coscom.co.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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coscom.co.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Coscom.co.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.
coscom.co.jp
Open Graph description is not detected on the main page of Coscom. 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: