Tools & Wizards About Us
yph.cn screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

yph.cn

Page Load Speed

17.8 sec in total

First Response

1.7 sec

Resources Loaded

15.5 sec

Page Rendered

571 ms

yph.cn screenshot

About Website

Welcome to yph.cn homepage info - get ready to check Yph best content right away, or after learning these important things about yph.cn

仪品汇是中国科学仪器行业专业实验室仪器、耗材配件在线采购平台，仪品汇提供液相色谱柱，气相色谱柱，离子色谱柱，手动移液器，电动移液器，液相样品瓶，气相顶空瓶，微孔滤膜，针式过滤器，细胞培养系统，实验室天平，紫外等商品。仪品汇为中国科学仪器行业买卖双方提供开放式的交易平台。

Visit yph.cn

Key Findings

We analyzed Yph.cn page load time and found that the first response time was 1.7 sec and then it took 16 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

yph.cn performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.9 s

0/100

25%

SI (Speed Index)

Value28.8 s

0/100

10%

TBT (Total Blocking Time)

Value250 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

index.php

1727 ms

base.css

2218 ms

home_header.css

1969 ms

font-awesome.min.css

1966 ms

jquery.js

2452 ms

Our browser made a total of 130 requests to load all elements on the main page. We found that 95% of them (123 requests) were addressed to the original Yph.cn, 2% (3 requests) were made to Hm.baidu.com and 2% (2 requests) were made to Count.instrument.com.cn. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Yph.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 521.4 kB (14%)

Content Size

3.8 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Yph.cn main page is 3.8 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. 70% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 165.7 kB

  • Original 184.9 kB
  • After minification 126.5 kB
  • After compression 19.1 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 58.3 kB, which is 32% 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 165.7 kB or 90% of the original size.

Image Optimization

-7%

Potential reduce by 227.8 kB

  • Original 3.5 MB
  • After minification 3.2 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. Yph images are well optimized though.

CSS Optimization

-82%

Potential reduce by 127.8 kB

  • Original 155.4 kB
  • After minification 134.1 kB
  • After compression 27.6 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. Yph.cn needs all CSS files to be minified and compressed as it can save up to 127.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (16%)

Requests Now

126

After Optimization

106

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yph. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

index.php

index.php

1727 ms

base.css

base.css

2218 ms

home_header.css

home_header.css

1969 ms

font-awesome.min.css

font-awesome.min.css

1966 ms

jquery.js

jquery.js

2452 ms

common.js

common.js

2239 ms

jquery.ui.js

jquery.ui.js

3392 ms

jquery.validation.min.js

jquery.validation.min.js

2224 ms

dialog.js

dialog.js

2450 ms

index.css

index.css

1825 ms

home_index.js

home_index.js

1601 ms

chat.css

chat.css

1342 ms

jquery.charCount.js

jquery.charCount.js

1303 ms

jquery.smilies.js

jquery.smilies.js

1305 ms

user.js

user.js

1305 ms

1425 ms

jquery.cookie.js

jquery.cookie.js

1525 ms

perfect-scrollbar.min.css

perfect-scrollbar.min.css

1553 ms

perfect-scrollbar.min.js

perfect-scrollbar.min.js

1553 ms

jquery.qtip.min.js

jquery.qtip.min.js

1564 ms

jquery.qtip.min.css

jquery.qtip.min.css

1577 ms

compare.js

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1774 ms

dialog.css

dialog.css

228 ms

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1826 ms

toolbar.png

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229 ms

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230 ms

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283 ms

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231 ms

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2502 ms

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478 ms

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2542 ms

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2341 ms

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2416 ms

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222 ms

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2222 ms

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1328 ms

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250 ms

Accessibility Review

yph.cn accessibility score

41

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

yph.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

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

SEO Factors

yph.cn SEO score

86

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

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

yph.cn

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