Tools & Wizards About Us
flexem.cn screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

flexem.cn

繁易官方网站 - 设备自动化与智能化解决方案提供商

Page Load Speed

16.4 sec in total

First Response

693 ms

Resources Loaded

15.2 sec

Page Rendered

450 ms

flexem.cn screenshot

About Website

Visit flexem.cn now to see the best up-to-date Flexem content and also check out these interesting facts you probably never knew about flexem.cn

上海繁易通过自主研发的工业人机界面、PLC控制器、伺服传动系统、工业物联网平台及其他工业智能产品，帮助设备制造商实现从单机智能控制到产线数字化的全面升级转型

Visit flexem.cn

Key Findings

We analyzed Flexem.cn page load time and found that the first response time was 693 ms and then it took 15.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

flexem.cn performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

flexem.cn

693 ms

www.flexem.cn

1259 ms

animate.css

249 ms

swiper.min.css

497 ms

base.css

689 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 95% of them (61 requests) were addressed to the original Flexem.cn, 2% (1 request) were made to Res.wx.qq.com and 2% (1 request) were made to Kbweb.fbox360.com. The less responsive or slowest element that took the longest time to load (12.3 sec) belongs to the original domain Flexem.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 121.5 kB (3%)

Content Size

4.8 MB

After Optimization

4.7 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Flexem.cn main page is 4.8 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. 55% of websites need less resources to load. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 47.0 kB

  • Original 57.7 kB
  • After minification 40.5 kB
  • After compression 10.7 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 17.2 kB, which is 30% 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 47.0 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 74.5 kB

  • Original 4.7 MB
  • After minification 4.6 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. Flexem images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 99.8 kB
  • After minification 99.8 kB
  • After compression 99.8 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 16 (28%)

Requests Now

58

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Flexem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

flexem.cn

flexem.cn

693 ms

www.flexem.cn

www.flexem.cn

1259 ms

animate.css

animate.css

249 ms

swiper.min.css

swiper.min.css

497 ms

base.css

base.css

689 ms

iconfont.css

iconfont.css

691 ms

index.css

index.css

702 ms

style.css

style.css

705 ms

page.css

page.css

742 ms

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884 ms

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915 ms

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917 ms

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930 ms

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936 ms

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985 ms

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992 ms

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1147 ms

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1163 ms

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1167 ms

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1962 ms

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5451 ms

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2285 ms

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4421 ms

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2089 ms

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1634 ms

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1869 ms

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2209 ms

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2322 ms

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4500 ms

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5636 ms

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3656 ms

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7864 ms

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7055 ms

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598 ms

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1572 ms

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5635 ms

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5458 ms

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5396 ms

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5196 ms

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5268 ms

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5417 ms

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5430 ms

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6713 ms

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6723 ms

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Accessibility Review

flexem.cn accessibility score

75

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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 valid value for its [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

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

flexem.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

flexem.cn SEO score

73

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

High

robots.txt is not valid

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

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Flexem.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 Flexem.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

flexem.cn

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