11.9 sec in total
777 ms
10.8 sec
331 ms
Visit mic21.com now to see the best up-to-date Mic 21 content for Japan and also check out these interesting facts you probably never knew about mic21.com
ダイビングのことなら、エムアイシー21【mic21】におまかせ!会員数35万人・店舗数16店舗。日本最大級の実績と経験から、初心者でも安心して受けられるダイビングライセンス取得講習やツアー、納得価格と豊富な品揃えに定評があります。ネット通販も充実!
Visit mic21.comWe analyzed Mic21.com page load time and found that the first response time was 777 ms and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
mic21.com performance score
name
value
score
weighting
Value5.4 s
7/100
10%
Value13.6 s
0/100
25%
Value10.3 s
9/100
10%
Value60 ms
100/100
30%
Value0.381
28/100
15%
Value11.7 s
18/100
10%
777 ms
1190 ms
8 ms
308 ms
464 ms
Our browser made a total of 178 requests to load all elements on the main page. We found that 56% of them (99 requests) were addressed to the original Mic21.com, 13% (24 requests) were made to Scontent-iad3-1.xx.fbcdn.net and 10% (17 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Mic21.com.
Page size can be reduced by 1.3 MB (42%)
3.1 MB
1.8 MB
In fact, the total size of Mic21.com main page is 3.1 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. 70% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.
Potential reduce by 55.3 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. This page needs HTML code to be minified as it can gain 8.2 kB, which is 12% 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 55.3 kB or 83% of the original size.
Potential reduce by 1.1 MB
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, Mic 21 needs image optimization as it can save up to 1.1 MB or 39% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 70.4 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 70.4 kB or 55% of the original size.
Potential reduce by 62.7 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. Mic21.com needs all CSS files to be minified and compressed as it can save up to 62.7 kB or 80% of the original size.
Number of requests can be reduced by 43 (25%)
175
132
The browser has sent 175 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mic 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.
mic21.com
777 ms
www.mic21.com
1190 ms
pure-min.css
8 ms
normalize.min.css
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mic21.com 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
mic21.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Registers an unload listener
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
mic21.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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 Mic21.com 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 Mic21.com 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.
mic21.com
Open Graph description is not detected on the main page of Mic 21. 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: