Tools & Wizards About Us
steelcoilcn.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

steelcoilcn.com

Galvalume steel coil China,Prepainted Galvanized steel coil manufacturer

Page Load Speed

12.6 sec in total

First Response

382 ms

Resources Loaded

11.5 sec

Page Rendered

730 ms

steelcoilcn.com screenshot

About Website

Visit steelcoilcn.com now to see the best up-to-date Steel Coil Cn content and also check out these interesting facts you probably never knew about steelcoilcn.com

China supplier of Roofing sheets,Corrugated steel sheets,Embossed coil,Highway Guardrail,Galvalume steel coil(GL or GL with AFR),Galvanized steel coil (GI),Pre-painted Galvanized Steel Coil (PPGI),Pre...

Visit steelcoilcn.com

Key Findings

We analyzed Steelcoilcn.com page load time and found that the first response time was 382 ms and then it took 12.2 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

steelcoilcn.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

48/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.254

49/100

15%

TTI (Time to Interactive)

Value16.3 s

5/100

10%

Network Requests Diagram

steelcoilcn.com

382 ms

steelcoilcn.com

353 ms

index.html

81 ms

swiper.min.css

87 ms

bootstrap.css

189 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 95% of them (60 requests) were addressed to the original Steelcoilcn.com, 2% (1 request) were made to Count24.51yes.com and 2% (1 request) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (9.6 sec) relates to the external source Count24.51yes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (13%)

Content Size

14.5 MB

After Optimization

12.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Steelcoilcn.com main page is 14.5 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. 45% of websites need less resources to load. Images take 14.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 25.1 kB

  • Original 30.2 kB
  • After minification 25.0 kB
  • After compression 5.1 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 5.2 kB, which is 17% 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 25.1 kB or 83% of the original size.

Image Optimization

-13%

Potential reduce by 1.8 MB

  • Original 14.3 MB
  • After minification 12.5 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. Obviously, Steel Coil Cn needs image optimization as it can save up to 1.8 MB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 1.8 kB

  • Original 106.0 kB
  • After minification 106.0 kB
  • After compression 104.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-10%

Potential reduce by 4.0 kB

  • Original 39.1 kB
  • After minification 39.1 kB
  • After compression 35.1 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. Steelcoilcn.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 9 (16%)

Requests Now

57

After Optimization

48

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Steel Coil Cn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

steelcoilcn.com

steelcoilcn.com

382 ms

steelcoilcn.com

steelcoilcn.com

353 ms

index.html

index.html

81 ms

swiper.min.css

swiper.min.css

87 ms

bootstrap.css

bootstrap.css

189 ms

animate.css

animate.css

201 ms

style.css

style.css

204 ms

jquery.min.js

jquery.min.js

298 ms

bootstrap.min.js

bootstrap.min.js

211 ms

swiper.js

swiper.js

352 ms

wow.min.js

wow.min.js

266 ms

jquery.stellar.js

jquery.stellar.js

267 ms

click.aspx

click.aspx

9604 ms

commit.js

commit.js

270 ms

header-pic1.png

header-pic1.png

75 ms

header-tel.png

header-tel.png

71 ms

mobile.png

mobile.png

80 ms

share.png

share.png

108 ms

ss.png

ss.png

193 ms

logo.png

logo.png

78 ms

1-210224193R34S.png

1-210224193R34S.png

578 ms

1-210224193G5218.png

1-210224193G5218.png

570 ms

1-210224192535E3.png

1-210224192535E3.png

567 ms

index-video-pic.jpg

index-video-pic.jpg

349 ms

index-about-pic1.jpg

index-about-pic1.jpg

268 ms

index-about-pic2.jpg

index-about-pic2.jpg

278 ms

index-about-pic3.jpg

index-about-pic3.jpg

368 ms

index-about-pic4.jpg

index-about-pic4.jpg

360 ms

1-21022G026300-L.png

1-21022G026300-L.png

439 ms

1-21022G13622358.png

1-21022G13622358.png

509 ms

1-21022G13136119.png

1-21022G13136119.png

504 ms

1-21022G2022H14.png

1-21022G2022H14.png

551 ms

1-21022G2015I09.png

1-21022G2015I09.png

611 ms

1-200316215325492.jpg

1-200316215325492.jpg

696 ms

1-2003162153580-L.jpg

1-2003162153580-L.jpg

636 ms

1-200G40PR12b.png

1-200G40PR12b.png

646 ms

1-200G40Q430Z6.jpg

1-200G40Q430Z6.jpg

640 ms

index-process3.jpg

index-process3.jpg

642 ms

1-200G40QK4111.png

1-200G40QK4111.png

841 ms

index-process5.jpg

index-process5.jpg

714 ms

index-process6.jpg

index-process6.jpg

707 ms

1-200G40R313420.png

1-200G40R313420.png

718 ms

1-200G40S350532.png

1-200G40S350532.png

724 ms

index-process9.jpg

index-process9.jpg

828 ms

index-process10.jpg

index-process10.jpg

786 ms

index-video-fl1.png

index-video-fl1.png

819 ms

player.png

player.png

785 ms

index-video-fl2.png

index-video-fl2.png

797 ms

index-video-cn.png

index-video-cn.png

862 ms

index-video-fr1.png

index-video-fr1.png

844 ms

index-video-fr2.png

index-video-fr2.png

817 ms

index-news-line.jpg

index-news-line.jpg

819 ms

1-200316220P00-L.jpg

1-200316220P00-L.jpg

823 ms

1-2003162245000-L.jpg

1-2003162245000-L.jpg

849 ms

supported_browsers

supported_browsers

41 ms

1-200316220Hb18.jpg

1-200316220Hb18.jpg

824 ms

erweima.png

erweima.png

741 ms

cepic.png

cepic.png

689 ms

banner-prev.png

banner-prev.png

687 ms

banner-next.png

banner-next.png

618 ms

index-line.png

index-line.png

637 ms

index-pic2.jpg

index-pic2.jpg

636 ms

share.js

share.js

1075 ms

Accessibility Review

steelcoilcn.com accessibility score

82

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

steelcoilcn.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

steelcoilcn.com SEO score

91

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

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

steelcoilcn.com

Open Graph description is not detected on the main page of Steel Coil Cn. 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: