Report Summary

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    Best Practices

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ガジェット図書館 Chalibrary

Page Load Speed

35 sec in total

First Response

1.9 sec

Resources Loaded

32.5 sec

Page Rendered

654 ms screenshot

About Website

Visit now to see the best up-to-date Chalibrary content for Japan and also check out these interesting facts you probably never knew about



Key Findings

We analyzed page load time and found that the first response time was 1.9 sec and then it took 33.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics performance score


Network Requests Diagram

1902 ms


22 ms


1552 ms


693 ms


555 ms

Our browser made a total of 244 requests to load all elements on the main page. We found that 30% of them (72 requests) were addressed to the original, 14% (35 requests) were made to and 8% (20 requests) were made to The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 944.8 kB (17%)

Content Size

5.7 MB

After Optimization

4.7 MB

In fact, the total size of main page is 5.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 123.7 kB

  • Original 145.8 kB
  • After minification 144.4 kB
  • After compression 22.1 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. 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 123.7 kB or 85% of the original size.

Image Optimization


Potential reduce by 274.4 kB

  • Original 4.7 MB
  • After minification 4.5 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. Chalibrary images are well optimized though.

JavaScript Optimization


Potential reduce by 354.2 kB

  • Original 531.2 kB
  • After minification 524.4 kB
  • After compression 177.0 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 354.2 kB or 67% of the original size.

CSS Optimization


Potential reduce by 192.6 kB

  • Original 237.5 kB
  • After minification 227.3 kB
  • After compression 44.9 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. needs all CSS files to be minified and compressed as it can save up to 192.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 124 (53%)

Requests Now


After Optimization


The browser has sent 233 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chalibrary. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 89 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

SEO Factors SEO score


Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 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

Open Graph data is detected on the main page of Chalibrary. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: