Report Summary

  • 69

    Performance

    Renders faster than
    81% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

yhsl.hvacr.cn

北京银海松科技有限公司

Page Load Speed

43.7 sec in total

First Response

8 sec

Resources Loaded

35.2 sec

Page Rendered

494 ms

yhsl.hvacr.cn screenshot

About Website

Visit yhsl.hvacr.cn now to see the best up-to-date Yhsl Hvacr content for China and also check out these interesting facts you probably never knew about yhsl.hvacr.cn

北京银海松科技有限公司是一家主营美国谷轮压缩机机组,谷轮压缩机,谷轮制冷压缩机的经销商 工程商 。联系电话:010-66531607

Visit yhsl.hvacr.cn

Key Findings

We analyzed Yhsl.hvacr.cn page load time and found that the first response time was 8 sec and then it took 35.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

yhsl.hvacr.cn performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

yhsl.hvacr.cn

8038 ms

style1.css

10476 ms

jquery-1.6.3.min.js

7376 ms

search.js

1054 ms

qhxx_floatAds.js

1051 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 24% of them (12 requests) were addressed to the original Yhsl.hvacr.cn, 47% (23 requests) were made to I.hvacr.cn and 8% (4 requests) were made to Img1.hvacr.cn. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Yhsl.hvacr.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 131.4 kB (47%)

Content Size

279.5 kB

After Optimization

148.0 kB

In fact, the total size of Yhsl.hvacr.cn main page is 279.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 162.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 28.2 kB

  • Original 35.1 kB
  • After minification 33.0 kB
  • After compression 6.9 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 28.2 kB or 80% of the original size.

Image Optimization

-14%

Potential reduce by 5.3 kB

  • Original 38.5 kB
  • After minification 33.1 kB

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, Yhsl Hvacr needs image optimization as it can save up to 5.3 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 97.9 kB

  • Original 162.2 kB
  • After minification 154.5 kB
  • After compression 64.3 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 97.9 kB or 60% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 43.7 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.

Requests Breakdown

Number of requests can be reduced by 10 (22%)

Requests Now

46

After Optimization

36

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yhsl Hvacr. 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 as a result speed up the page load time.

Accessibility Review

yhsl.hvacr.cn accessibility score

66

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

yhsl.hvacr.cn best practices score

75

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

SEO Factors

yhsl.hvacr.cn SEO score

75

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

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yhsl.hvacr.cn 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 Yhsl.hvacr.cn 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 Yhsl Hvacr. 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: