Tools & Wizards About Us

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

vister-laser.com

佛山顺德激光打标加工，容桂黄圃南头大岑激光镭射加工厂，佛山顺德塑料激光镭射打码机厂家，激光焊接机，激光切割机,激光配件维修，大族激光配件

Page Load Speed

18.9 sec in total

First Response

1.4 sec

Resources Loaded

17.4 sec

Page Rendered

186 ms

About Website

Welcome to vister-laser.com homepage info - get ready to check Vister Laser best content right away, or after learning these important things about vister-laser.com

佛山市威士特激光设备有限公司是一家专门采用进口激光技术，生产工业激光打标设备权威专业制造商，拥有十二年激光设备制造经验，服务热线 13420954526，主营：激光打标机，光纤激光打标机，紫外激光标机，首饰激光刻字机，自动化激光打标机，激光打字机.

Visit vister-laser.com

Key Findings

We analyzed Vister-laser.com page load time and found that the first response time was 1.4 sec and then it took 17.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

vister-laser.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value11.1 s

5/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

vister-laser.com

1350 ms

style.css

679 ms

common.css

912 ms

jquery.min.js

1590 ms

functions.js

1152 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that all of those requests were addressed to Vister-laser.com and no external sources were called. The less responsive or slowest element that took the longest time to load (11.6 sec) belongs to the original domain Vister-laser.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 210.7 kB (5%)

Content Size

4.0 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vister-laser.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. 20% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 60.8 kB

  • Original 67.4 kB
  • After minification 66.8 kB
  • After compression 6.5 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 60.8 kB or 90% of the original size.

Image Optimization

-3%

Potential reduce by 128.9 kB

  • Original 3.9 MB
  • After minification 3.8 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. Vister Laser images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 18.9 kB

  • Original 60.1 kB
  • After minification 60.0 kB
  • After compression 41.1 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 18.9 kB or 32% of the original size.

CSS Optimization

-33%

Potential reduce by 2.1 kB

  • Original 6.3 kB
  • After minification 6.3 kB
  • After compression 4.2 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. Vister-laser.com needs all CSS files to be minified and compressed as it can save up to 2.1 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (38%)

Requests Now

87

After Optimization

54

  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vister Laser. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vister-laser.com accessibility score

62

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Internationalization and localization

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

Impact

Issue

High

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

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

vister-laser.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

vister-laser.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vister-laser.com 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 Vister-laser.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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