Tools & Wizards About Us
osm.com.cn screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

osm.com.cn

欧诗漫珍珠美肤世家

Page Load Speed

54.5 sec in total

First Response

4.5 sec

Resources Loaded

49.7 sec

Page Rendered

297 ms

osm.com.cn screenshot

About Website

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

欧诗漫始于1967年,源于珍珠专于珍珠,秉承匠心精神,为您带来最好的珍珠美肤理念和产品,帮助您打造肌肤和内在珍珠般的美丽和光彩。

Visit osm.com.cn

Key Findings

We analyzed Osm.com.cn page load time and found that the first response time was 4.5 sec and then it took 50 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 28 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

osm.com.cn performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

osm.com.cn

4511 ms

reset.css

2215 ms

jquery.min.js

16548 ms

jquery.lazyload.min.js

2578 ms

jquery.event.move.js

2624 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that all of those requests were addressed to Osm.com.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Osm.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 87.9 kB (45%)

Content Size

195.6 kB

After Optimization

107.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Osm.com.cn main page is 195.6 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 105.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 17.0 kB

  • Original 21.0 kB
  • After minification 17.5 kB
  • After compression 4.0 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 3.5 kB, which is 17% 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 17.0 kB or 81% of the original size.

Image Optimization

-13%

Potential reduce by 14.0 kB

  • Original 105.9 kB
  • After minification 91.9 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, Osm needs image optimization as it can save up to 14.0 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 18.0 kB

  • Original 22.6 kB
  • After minification 14.5 kB
  • After compression 4.6 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 18.0 kB or 80% of the original size.

CSS Optimization

-84%

Potential reduce by 38.9 kB

  • Original 46.1 kB
  • After minification 37.7 kB
  • After compression 7.2 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. Osm.com.cn needs all CSS files to be minified and compressed as it can save up to 38.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (40%)

Requests Now

25

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

osm.com.cn

osm.com.cn

4511 ms

reset.css

reset.css

2215 ms

jquery.min.js

jquery.min.js

16548 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

2578 ms

jquery.event.move.js

jquery.event.move.js

2624 ms

basic.css

basic.css

1101 ms

style.css

style.css

3084 ms

share.css

share.css

2344 ms

pages.css

pages.css

3552 ms

base.js

base.js

4476 ms

main.js

main.js

3057 ms

css.css

css.css

1438 ms

lrtk.js

lrtk.js

1834 ms

sd_1.png

sd_1.png

556 ms

logo.png

logo.png

4620 ms

li_1.png

li_1.png

1180 ms

sd_5.png

sd_5.png

504 ms

1-150914130322463.jpg

1-150914130322463.jpg

8652 ms

1-15091413025K22.jpg

1-15091413025K22.jpg

10912 ms

1-150914125Q0c1.jpg

1-150914125Q0c1.jpg

13833 ms

1-15091412545U18.jpg

1-15091412545U18.jpg

9326 ms

1-150914125253259.jpg

1-150914125253259.jpg

4471 ms

1-150914141450N7.jpg

1-150914141450N7.jpg

20340 ms

1-15111G35205S5.jpg

1-15111G35205S5.jpg

20341 ms

1-15111G35344X6.jpg

1-15111G35344X6.jpg

20342 ms

1-150921155109130.jpg

1-150921155109130.jpg

20342 ms

tt_l1-1.png

tt_l1-1.png

15757 ms

tt_l1-2.png

tt_l1-2.png

17600 ms

1-1511041A31c61-lp.jpg

1-1511041A31c61-lp.jpg

19923 ms

1-1511041A155423-lp.jpg

1-1511041A155423-lp.jpg

19843 ms

1-1511061504523N-lp.png

1-1511061504523N-lp.png

20341 ms

tt_l1-3.png

tt_l1-3.png

20341 ms

ico_l1-1.png

ico_l1-1.png

20341 ms

call.png

call.png

20341 ms

l.png

l.png

20322 ms

r.png

r.png

20323 ms

dtt1-on.png

dtt1-on.png

20323 ms

dtt1.png

dtt1.png

20322 ms

sd_2.png

sd_2.png

20323 ms

sd_6.png

sd_6.png

20323 ms

more.png

more.png

20322 ms

pic_2_2015_9_30.jpg

pic_2_2015_9_30.jpg

20323 ms

foot_a_1.jpg

foot_a_1.jpg

20323 ms

foot_a_2.jpg

foot_a_2.jpg

20322 ms

foot_a_3.jpg

foot_a_3.jpg

20323 ms

foot_a_4.jpg

foot_a_4.jpg

20323 ms

ico_l1-2.png

ico_l1-2.png

20322 ms

ico_l1-3.png

ico_l1-3.png

20323 ms

ico_l1-4.png

ico_l1-4.png

20322 ms

li_2.png

li_2.png

19848 ms

logo_bt.png

logo_bt.png

19798 ms

img_f1-1.jpg

img_f1-1.jpg

20161 ms

img_f1-2.jpg

img_f1-2.jpg

19929 ms

img_f1-3.jpg

img_f1-3.jpg

19940 ms

Accessibility Review

osm.com.cn accessibility score

68

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

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

osm.com.cn best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

osm.com.cn SEO score

77

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

High

robots.txt is not valid

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 Osm.com.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 Osm.com.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

osm.com.cn

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