Access ngvchina.com. 天然气车船设备展览会_加气站设备_新能源汽车 | 天然气发动机展览会 | 2024第二十五届中国国际天然气车船加气站设备展览会暨论坛

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value4.4 s

84/100

10%

ngvchina.com

1761 ms

bootstrap.min.css

1746 ms

font-awesome.min.css

1324 ms

style.css

1106 ms

toucher.js

1109 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that all of those requests were addressed to Ngvchina.com and no external sources were called. The less responsive or slowest element that took the longest time to load (4.9 sec) belongs to the original domain Ngvchina.com.

Content Size

3.9 MB

After Optimization

3.6 MB

In fact, the total size of Ngvchina.com main page is 3.9 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 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 44.5 kB

Original 56.6 kB
After minification 49.1 kB
After compression 12.2 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 7.5 kB, which is 13% 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 44.5 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 45.0 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. Ngvchina images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 102.0 kB

Original 148.2 kB
After minification 140.6 kB
After compression 46.2 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 102.0 kB or 69% of the original size.

CSS Optimization

-82%

Potential reduce by 132.0 kB

Original 160.4 kB
After minification 157.7 kB
After compression 28.4 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. Ngvchina.com needs all CSS files to be minified and compressed as it can save up to 132.0 kB or 82% of the original size.

Requests Now

After Optimization

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ngvchina. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA input fields do not have accessible names

High

ARIA progressbar elements do not have accessible names.

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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 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

Links do not have a discernible name

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

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

ZH
Language Claimed

ZH
Encoding

UTF-8

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

ngvchina.com

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

天然气车船设备展览会_加气站设备_新能源汽车 | 天然气发动机展览会 | 2024第二十五届中国国际天然气车船加气站设备展览会暨论坛

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

ngvchina.com

bootstrap.min.css

font-awesome.min.css

style.css

toucher.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

ngvchina.com

bootstrap.min.css

font-awesome.min.css

style.css

toucher.js

newday.js

jquery-1.12.1.min.js

bootstrap.min.js

global.js

guoqi.gif

weixin-logo.png

weixin.png

logo-wz.gif

youzi-02.gif

banner15.jpg

liangdian1.jpg

liangdian2.jpg

liangdian3.jpg

liangdian4.jpg

liangdian5.jpg

liangdian6.jpg

banner9.png

64x48_auto.jpg

64x48_auto.jpg

64x48_auto.jpg

64x48_auto.jpg

64x48_auto.jpg

NGV-BANNER.jpg

youzi-01.gif

z1.png

z2.png

z3.png

z4.png

z5.png

z6.png

2-16041Q6124S12.JPG

2-16041Q61146147.JPG

2-16041Q60503915.JPG

2-16041Q6030a29.JPG

2-16041Q55133260.JPG

more-czs.jpg

2-2106021112440-L-lp.png

2-210602111HO44-lp.png