Access high-light.com.cn. customized vacuum chamber-vacuum valves-vacuum components for you

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.264

46/100

15%

TTI (Time to Interactive)

Value6.0 s

65/100

10%

en-global

528 ms

jquery.js

1314 ms

jquery-ui-1.8.23.custom.min.js

486 ms

main.js

919 ms

jquery.cycle.all.js

940 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 38% of them (40 requests) were addressed to the original High-light.com.cn, 47% (50 requests) were made to Htcvacuum.com and 5% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.9 sec) belongs to the original domain High-light.com.cn.

Content Size

2.6 MB

After Optimization

2.3 MB

In fact, the total size of High-light.com.cn main page is 2.6 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 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 80.4 kB

Original 91.6 kB
After minification 60.2 kB
After compression 11.2 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 31.4 kB, which is 34% 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 80.4 kB or 88% of the original size.

Image Optimization

-6%

Potential reduce by 126.4 kB

Original 2.2 MB
After minification 2.1 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. High Light images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 57.2 kB

Original 251.0 kB
After minification 250.7 kB
After compression 193.8 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 57.2 kB or 23% of the original size.

CSS Optimization

-5%

Potential reduce by 2.3 kB

Original 47.6 kB
After minification 47.5 kB
After compression 45.3 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. High-light.com.cn has all CSS files already compressed.

Requests Now

105

After Optimization

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of High Light. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 27 to 1 for CSS 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

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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 items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

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

EN
Language Claimed

N/A
Encoding

UTF-8

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

high-light.com.cn

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

customized vacuum chamber-vacuum valves-vacuum components for you

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

en-global

jquery.js

jquery-ui-1.8.23.custom.min.js

main.js

jquery.cycle.all.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

en-global

jquery.js

jquery-ui-1.8.23.custom.min.js

main.js

jquery.cycle.all.js

hs_wheel.js

index.js

jquery.ui.all.css

reset.css

tree.min.css

zh.css

default.css

index.css

js

bootstrap.min.css

bootstrap-theme.min.css

owl.carousel.css

style.css

sun.css

bootstrap.min.js

owl.carousel.js

action.js

js.cookie.js

conversion.js

jquery.ui.base.css

jquery.ui.theme.css

jquery.ui.core.css

jquery.ui.accordion.css

jquery.ui.autocomplete.css

jquery.ui.button.css

jquery.ui.datepicker.css

jquery.ui.dialog.css

jquery.ui.menu.css

jquery.ui.progressbar.css

jquery.ui.resizable.css

jquery.ui.selectable.css

jquery.ui.slider.css

jquery.ui.spinner.css

jquery.ui.tabs.css

jquery.ui.tooltip.css

analytics.js

back.png

logo.png