Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 39

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

yyb.cc

液压泵网是集液压泵配件,液压泵维修,液压配件,液压维修为一体的综合液压行业网

Page Load Speed

65 sec in total

First Response

10.6 sec

Resources Loaded

54.1 sec

Page Rendered

328 ms

yyb.cc screenshot

About Website

Welcome to yyb.cc homepage info - get ready to check Yyb best content right away, or after learning these important things about yyb.cc

液压泵网是液压泵行业门户平台,集液压泵领域为整体,突出液压泵配件供求、液压泵企业、液压泵专业技术资料等等综合平台;液压泵行业资讯动态,液压泵行业商机推广及时更新,欢迎浏览。

Visit yyb.cc

Key Findings

We analyzed Yyb.cc page load time and found that the first response time was 10.6 sec and then it took 54.5 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

yyb.cc performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value4.9 s

77/100

10%

Network Requests Diagram

www.yyb.cc

10573 ms

XYLib.css

1013 ms

global.css

2299 ms

Survey.css

1753 ms

search.js

7573 ms

Our browser made a total of 115 requests to load all elements on the main page. We found that 83% of them (96 requests) were addressed to the original Yyb.cc, 4% (5 requests) were made to Bdimg.share.baidu.com and 2% (2 requests) were made to Odr.jsdsgsxt.gov.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Yyb.cc.

Page Optimization Overview & Recommendations

Page size can be reduced by 185.1 kB (61%)

Content Size

304.7 kB

After Optimization

119.6 kB

In fact, the total size of Yyb.cc main page is 304.7 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. 20% of websites need less resources to load. HTML takes 94.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 79.1 kB

  • Original 94.8 kB
  • After minification 82.8 kB
  • After compression 15.8 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 12.0 kB, which is 13% 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 79.1 kB or 83% of the original size.

Image Optimization

-11%

Potential reduce by 7.8 kB

  • Original 73.9 kB
  • After minification 66.0 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, Yyb needs image optimization as it can save up to 7.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 58.9 kB

  • Original 84.3 kB
  • After minification 72.6 kB
  • After compression 25.4 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 58.9 kB or 70% of the original size.

CSS Optimization

-76%

Potential reduce by 39.3 kB

  • Original 51.6 kB
  • After minification 45.3 kB
  • After compression 12.4 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. Yyb.cc needs all CSS files to be minified and compressed as it can save up to 39.3 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 50 (44%)

Requests Now

113

After Optimization

63

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yyb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

yyb.cc accessibility score

39

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

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

yyb.cc best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Browser errors were logged to the console

SEO Factors

yyb.cc SEO score

50

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

High

Document uses plugins

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 Yyb.cc 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 Yyb.cc 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 Yyb. 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: