Tools & Wizards About Us
yr17.net screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

yr17.net

上海研润光机科技有限公司|金相显微镜|洛氏硬度计|维氏硬度计|显微硬度计|布氏硬度计|拉力试验机|万能试验机|冲击试验机|自准直仪|金相试样切割机|金相试样抛光机|金相试样磨抛机|金相试样镶嵌机|圆度仪|轮廓仪|三坐标测量机|疲劳试验机|材料试验机|影像测量仪

Page Load Speed

29.1 sec in total

First Response

1.6 sec

Resources Loaded

27 sec

Page Rendered

461 ms

yr17.net screenshot

About Website

Welcome to yr17.net homepage info - get ready to check Yr 17 best content right away, or after learning these important things about yr17.net

影像测量仪,金相显微镜,生物显微镜,洛氏硬度计,维氏硬度计,显微硬度计,布氏硬度计,拉力试验机,万能试验机,冲击试验机,自准直仪,金相试样切割机,金相试样抛光机,金相试样磨抛机,金相试样镶嵌机,三坐标测量机,疲劳试验机,材料试验机;上海研润光机科技有限公司是高科技精密仪器仪表企业.产品共58大类585余个小类共6850多种产品,是目前国内生产经营销售精密仪器仪表新兴高科技企业之一。公司通过ISO9...

Visit yr17.net

Key Findings

We analyzed Yr17.net page load time and found that the first response time was 1.6 sec and then it took 27.4 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. Unfortunately, there were 26 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

yr17.net performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value2,170 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

yr17.net

1647 ms

css.css

1927 ms

email.php

455 ms

bg.gif

472 ms

menutop.gif

862 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 96% of them (53 requests) were addressed to the original Yr17.net, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Yr17.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.6 kB (14%)

Content Size

797.6 kB

After Optimization

684.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yr17.net main page is 797.6 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. Only 10% of websites need less resources to load. Images take 729.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 43.5 kB

  • Original 50.6 kB
  • After minification 40.8 kB
  • After compression 7.2 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 9.8 kB, which is 19% 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 43.5 kB or 86% of the original size.

Image Optimization

-10%

Potential reduce by 69.6 kB

  • Original 729.1 kB
  • After minification 659.5 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. Yr 17 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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

-65%

Potential reduce by 496 B

  • Original 758 B
  • After minification 599 B
  • After compression 262 B

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. Yr17.net needs all CSS files to be minified and compressed as it can save up to 496 B or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (41%)

Requests Now

27

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yr 17. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

yr17.net

yr17.net

1647 ms

css.css

css.css

1927 ms

email.php

email.php

455 ms

bg.gif

bg.gif

472 ms

menutop.gif

menutop.gif

862 ms

emailoline.gif

emailoline.gif

2615 ms

elogo.jpg

elogo.jpg

10018 ms

top_01.gif

top_01.gif

4519 ms

top_03.gif

top_03.gif

968 ms

top_04.gif

top_04.gif

2609 ms

top_05.gif

top_05.gif

1439 ms

top_06.gif

top_06.gif

1819 ms

favourite.gif

favourite.gif

1901 ms

top_07.gif

top_07.gif

3466 ms

menuspace.gif

menuspace.gif

2331 ms

yin2.gif

yin2.gif

2763 ms

managelogin.gif

managelogin.gif

3431 ms

news.gif

news.gif

3030 ms

btnmore.gif

btnmore.gif

8183 ms

yin3.gif

yin3.gif

3435 ms

yin.gif

yin.gif

3847 ms

productshow.gif

productshow.gif

3851 ms

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142863618512.JPG

19770 ms

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140315755210.jpg

17228 ms

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144583695022.jpg

14849 ms

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140315922321.jpg

19770 ms

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145086222923.jpg

19770 ms

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144790130411.jpg

19771 ms

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14031467957.jpg

19770 ms

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19769 ms

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140314547311.jpg

19770 ms

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133394883924.jpg

19770 ms

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139942892618.JPG

19770 ms

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138655534824.jpg

19770 ms

143772603019.JPG

143772603019.JPG

19770 ms

143580126119.jpg

143580126119.jpg

19770 ms

14157543844.JPG

14157543844.JPG

19771 ms

ga.js

ga.js

51 ms

141982448428.jpg

141982448428.jpg

19745 ms

__utm.gif

__utm.gif

29 ms

141575436623.JPG

141575436623.JPG

20321 ms

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13092430522.jpg

20304 ms

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131538437513.jpg

19914 ms

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19807 ms

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20335 ms

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19954 ms

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19873 ms

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20440 ms

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14148317666.jpg

20166 ms

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130924033214.jpg

20161 ms

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13246203331.jpg

20010 ms

yin1.gif

yin1.gif

19473 ms

BgLogin.gif

BgLogin.gif

19132 ms

icon.gif

icon.gif

20336 ms

email.gif

email.gif

19481 ms

Accessibility Review

yr17.net accessibility score

42

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

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

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

yr17.net 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

yr17.net SEO score

54

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 Yr17.net 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 Yr17.net 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

yr17.net

Open Graph description is not detected on the main page of Yr 17. 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: