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First Response

902 ms

Resources Loaded

8 sec

Page Rendered

1.9 sec

stem-lab.jp screenshot

About Website

Welcome to stem-lab.jp homepage info - get ready to check Stem Lab best content right away, or after learning these important things about stem-lab.jp

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Key Findings

We analyzed Stem-lab.jp page load time and found that the first response time was 902 ms and then it took 9.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

stem-lab.jp

902 ms

common.css

296 ms

modernizr-2.6.2.min.js

1175 ms

css.js

2184 ms

navi.js

2186 ms

Our browser made a total of 168 requests to load all elements on the main page. We found that 83% of them (139 requests) were addressed to the original Stem-lab.jp, 5% (9 requests) were made to Plugins.mixi.jp and 2% (4 requests) were made to Img.mixi.net. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Stem-lab.jp.

Content Size

2.4 MB

After Optimization

1.7 MB

In fact, the total size of Stem-lab.jp main page is 2.4 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. 65% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 29.5 kB

Original 38.6 kB
After minification 34.0 kB
After compression 9.0 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 4.6 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 29.5 kB or 77% of the original size.

Image Optimization

-12%

Potential reduce by 199.6 kB

Original 1.6 MB
After minification 1.4 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, Stem Lab needs image optimization as it can save up to 199.6 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 413.6 kB

Original 623.9 kB
After minification 581.5 kB
After compression 210.2 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 413.6 kB or 66% of the original size.

CSS Optimization

-85%

Potential reduce by 84.8 kB

Original 99.9 kB
After minification 78.3 kB
After compression 15.1 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. Stem-lab.jp needs all CSS files to be minified and compressed as it can save up to 84.8 kB or 85% of the original size.

Requests Now

164

After Optimization

120

The browser has sent 164 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stem Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stem-lab.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Stem-lab.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.

Social Sharing Optimization

stem-lab.jp

Open Graph description is not detected on the main page of Stem Lab. 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: