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name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.164

72/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

yfong.com.sg

2185 ms

bootstrap.min.css

566 ms

style.min.css

920 ms

style.css

689 ms

styles.css

699 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Yf-instruments.com, 1% (1 request) were made to Fonts.googleapis.com and 1% (1 request) were made to . The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source Yfong.com.sg.

Content Size

4.0 MB

After Optimization

3.8 MB

In fact, the total size of Yf-instruments.com main page is 4.0 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. 50% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 149.4 kB

Original 175.4 kB
After minification 170.9 kB
After compression 26.0 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. 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 149.4 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 52.1 kB

Original 3.6 MB
After minification 3.5 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. Yf Instruments images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.0 kB

Original 143.4 kB
After minification 143.4 kB
After compression 141.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 4.3 kB

Original 167.8 kB
After minification 167.8 kB
After compression 163.5 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. Yf-instruments.com has all CSS files already compressed.

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After Optimization

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yf Instruments. 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 25 to 1 for CSS and as a result speed up the page load time.