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name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

windowstokyo.com

202 ms

main.css

60 ms

simpletreemenu.js

153 ms

simpletree.css

155 ms

urchin.js

7 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 90% of them (27 requests) were addressed to the original Windowstokyo.com, 7% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Upload.wikimedia.org. The less responsive or slowest element that took the longest time to load (286 ms) belongs to the original domain Windowstokyo.com.

Content Size

55.8 kB

After Optimization

33.0 kB

In fact, the total size of Windowstokyo.com main page is 55.8 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 25.4 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 8.5 kB

Original 11.2 kB
After minification 7.1 kB
After compression 2.8 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 4.1 kB, which is 37% 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 8.5 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 3.5 kB

Original 25.4 kB
After minification 22.0 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, Windowstokyo needs image optimization as it can save up to 3.5 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 971 B

Original 6.8 kB
After minification 6.8 kB
After compression 5.9 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 971 B or 14% of the original size.

CSS Optimization

-80%

Potential reduce by 9.9 kB

Original 12.3 kB
After minification 9.8 kB
After compression 2.4 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. Windowstokyo.com needs all CSS files to be minified and compressed as it can save up to 9.9 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Windowstokyo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.