Access truelab.cn. 德国VITLAB，德国KNF 凯恩孚，英国ELGA 埃尔格，美国Aqualab，日本松下，台湾祥泰，授权代理商-上海楚柏官方网站!

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value8.8 s

16/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

truelab.cn

13851 ms

style.css

14300 ms

common.js

2126 ms

index.js

1161 ms

jquery-1.9.1.min.js

16230 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 94% of them (120 requests) were addressed to the original Truelab.cn, 3% (4 requests) were made to Hm.baidu.com and 1% (1 request) were made to Amos1.taobao.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Truelab.cn.

Content Size

812.7 kB

After Optimization

441.1 kB

In fact, the total size of Truelab.cn main page is 812.7 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. 25% of websites need less resources to load. Images take 428.4 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 116.5 kB

Original 131.8 kB
After minification 97.9 kB
After compression 15.3 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 33.9 kB, which is 26% 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 116.5 kB or 88% of the original size.

Image Optimization

-10%

Potential reduce by 43.5 kB

Original 428.4 kB
After minification 385.0 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. Truelab images are well optimized though.

JavaScript Optimization

-83%

Potential reduce by 73.1 kB

Original 88.5 kB
After minification 54.9 kB
After compression 15.4 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 73.1 kB or 83% of the original size.

CSS Optimization

-84%

Potential reduce by 138.5 kB

Original 163.9 kB
After minification 147.8 kB
After compression 25.4 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. Truelab.cn needs all CSS files to be minified and compressed as it can save up to 138.5 kB or 84% of the original size.

Requests Now

103

After Optimization

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Truelab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Truelab.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Truelab.cn 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

truelab.cn

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

Report Summary

Performance

Accessibility

Best Practices

SEO

德国VITLAB，德国KNF 凯恩孚，英国ELGA 埃尔格，美国Aqualab，日本松下，台湾祥泰，授权代理商-上海楚柏官方网站!

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

truelab.cn

style.css

common.js

index.js

jquery-1.9.1.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

truelab.cn

style.css

common.js

index.js

jquery-1.9.1.min.js

jquery.json.js

jquery.SuperSlide.js

transport.js

utils.js

ecmoban_common.js

online.ww

logo.gif

20150202zqcxlg.jpg

20150202xxupbv.jpg

20150202tqgcdr.jpg

b1.jpg

b1_1.png

b2.jpg

b2_1.png

b3.jpg

b3_1.png

b4.jpg

b4_1.png

title_txt02.jpg

1026_thumb_G_1423160006616.jpg

427_thumb_G_1423613008869.jpg

251_thumb_G_1431372307380.jpg

923_thumb_G_1423072359441.jpg

1.jpg

1428822579816747103.jpg

1428823045819371653.jpg

1428823628757243289.jpg

3748_thumb_G_1437501489305.jpg

3747_thumb_G_1437004330947.jpg

3744_thumb_G_1431821720276.jpg

3742_thumb_G_1431821518892.jpg

3741_thumb_G_1431821386632.jpg

3740_thumb_G_1431821224084.jpg

3738_thumb_G_1431821089714.jpg

3737_thumb_G_1431821015053.jpg

3735_thumb_G_1431820694608.jpg

3734_thumb_G_1431820486038.jpg

1421870722715813303.jpg