Tools & Wizards About Us

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

blackcatsolution.com

开云网页版-开云(中国)官方网站登录界面-开云网页版-开云(中国)官方网站登录界面

Page Load Speed

2.4 sec in total

First Response

207 ms

Resources Loaded

1.8 sec

Page Rendered

406 ms

About Website

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

开云网页版-开云(中国)官方网站登录界面（以下简称{开云网页版-开云(中国)官方网站登录界面}），总部位于四川省成都市，是中国东方电气集团有限公司控股特大型企业。东方电气秉承“求实、创新、人和、图强”的企业精神，历经60余年的发展，已成为全球最大的发电设备供应商和电站工程总承包商之一。分别在上海证券交易所（代码600875）和香港联交所（代码1072）上市。有限公司，注册成立于2003年初，是一家...

Visit blackcatsolution.com

Key Findings

We analyzed Blackcatsolution.com page load time and found that the first response time was 207 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

blackcatsolution.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

3/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value18.2 s

0/100

10%

TBT (Total Blocking Time)

Value550 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.255

48/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

blackcatsolution.com

207 ms

www.blackcatsolution.com

874 ms

bootstrap.min.css

31 ms

style.css

132 ms

font-awesome.min.css

47 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 66% of them (33 requests) were addressed to the original Blackcatsolution.com, 20% (10 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (874 ms) belongs to the original domain Blackcatsolution.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 273.6 kB (6%)

Content Size

4.7 MB

After Optimization

4.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackcatsolution.com main page is 4.7 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. 60% of websites need less resources to load. Images take 4.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 12.4 kB

  • Original 16.0 kB
  • After minification 13.2 kB
  • After compression 3.7 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 2.8 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 12.4 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 197.0 kB

  • Original 4.5 MB
  • After minification 4.3 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. Blackcatsolution images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 56.6 kB

  • Original 114.1 kB
  • After minification 109.7 kB
  • After compression 57.4 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 56.6 kB or 50% of the original size.

CSS Optimization

-76%

Potential reduce by 7.7 kB

  • Original 10.1 kB
  • After minification 7.1 kB
  • After compression 2.4 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. Blackcatsolution.com needs all CSS files to be minified and compressed as it can save up to 7.7 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (27%)

Requests Now

37

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackcatsolution. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

blackcatsolution.com accessibility score

56

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.

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

Best Practices

blackcatsolution.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

blackcatsolution.com SEO score

85

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

Links do not have descriptive text

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

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 Blackcatsolution.com 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 Blackcatsolution.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

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