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open99.com screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

open99.com

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Page Load Speed

4.1 sec in total

First Response

808 ms

Resources Loaded

3.1 sec

Page Rendered

149 ms

open99.com screenshot

About Website

Welcome to open99.com homepage info - get ready to check Open 99 best content for China right away, or after learning these important things about open99.com

仪器仪表汇总|仪器大全|仪表大全

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Key Findings

We analyzed Open99.com page load time and found that the first response time was 808 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

open99.com performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

open99.com

808 ms

index.css

227 ms

top.jpg

641 ms

menu.jpg

644 ms

ba1.jpg

452 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that all of those requests were addressed to Open99.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Open99.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 117.4 kB (12%)

Content Size

992.8 kB

After Optimization

875.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Open99.com main page is 992.8 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. 25% of websites need less resources to load. Images take 916.2 kB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 69.9 kB

  • Original 75.0 kB
  • After minification 40.4 kB
  • After compression 5.1 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 34.5 kB, which is 46% 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 69.9 kB or 93% of the original size.

Image Optimization

-5%

Potential reduce by 47.1 kB

  • Original 916.2 kB
  • After minification 869.1 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. Open 99 images are well optimized though.

CSS Optimization

-27%

Potential reduce by 439 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 1.2 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. Open99.com needs all CSS files to be minified and compressed as it can save up to 439 B or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (11%)

Requests Now

44

After Optimization

39

  • Images
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open 99. 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

open99.com

open99.com

808 ms

index.css

index.css

227 ms

top.jpg

top.jpg

641 ms

menu.jpg

menu.jpg

644 ms

ba1.jpg

ba1.jpg

452 ms

bj.jpg

bj.jpg

214 ms

ba.jpg

ba.jpg

1130 ms

mabj.jpg

mabj.jpg

425 ms

01.jpg

01.jpg

444 ms

03.jpg

03.jpg

656 ms

le1.jpg

le1.jpg

597 ms

le2.jpg

le2.jpg

599 ms

le3.jpg

le3.jpg

638 ms

le4.jpg

le4.jpg

656 ms

le5.jpg

le5.jpg

812 ms

le6.jpg

le6.jpg

814 ms

le7.jpg

le7.jpg

852 ms

ma1.jpg

ma1.jpg

888 ms

ma2.jpg

ma2.jpg

889 ms

pr.gif

pr.gif

1025 ms

1505.jpg

1505.jpg

1031 ms

pr1.gif

pr1.gif

1065 ms

1504.jpg

1504.jpg

1106 ms

1503.jpg

1503.jpg

1101 ms

1502.jpg

1502.jpg

1248 ms

1501.jpg

1501.jpg

1250 ms

1500.jpg

1500.jpg

1278 ms

1499.jpg

1499.jpg

1313 ms

1498.png

1498.png

1773 ms

1497.jpg

1497.jpg

1353 ms

1496.jpg

1496.jpg

1463 ms

1495.jpg

1495.jpg

1465 ms

1494.jpg

1494.jpg

1491 ms

1493.jpg

1493.jpg

1526 ms

1492.jpg

1492.jpg

1578 ms

1491.jpg

1491.jpg

1684 ms

1490.jpg

1490.jpg

1681 ms

1489.jpg

1489.jpg

1695 ms

1488.jpg

1488.jpg

1554 ms

1487.png

1487.png

1600 ms

1486.jpg

1486.jpg

1524 ms

ma3.jpg

ma3.jpg

1523 ms

lm1.jpg

lm1.jpg

1500 ms

cf.jpg

cf.jpg

1527 ms

ma10.jpg

ma10.jpg

1400 ms

bot.jpg

bot.jpg

1440 ms

Accessibility Review

open99.com accessibility score

57

Accessibility Issues

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

High

<object> elements do not have alternate text

Best Practices

open99.com 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

open99.com SEO score

58

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

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 Open99.com 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 Open99.com 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

open99.com

Open Graph description is not detected on the main page of Open 99. 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: