Report Summary

  • 79

    Performance

    Renders faster than
    86% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

leica.org.cn

『Leica中文摄影杂志』 - ...摄影改变生活...中文独立摄影阅读...

Page Load Speed

3.1 sec in total

First Response

560 ms

Resources Loaded

2.2 sec

Page Rendered

300 ms

leica.org.cn screenshot

About Website

Visit leica.org.cn now to see the best up-to-date Leica content for China and also check out these interesting facts you probably never knew about leica.org.cn

...摄影改变生活...中文独立摄影阅读...

Visit leica.org.cn

Key Findings

We analyzed Leica.org.cn page load time and found that the first response time was 560 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

leica.org.cn performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

leica.org.cn

560 ms

www.leica.org.cn

368 ms

styles.css

171 ms

common.js

477 ms

jslang.js

326 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 50% of them (20 requests) were addressed to the original Leica.org.cn, 45% (18 requests) were made to Pic.yupoo.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (828 ms) relates to the external source Pic.yupoo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 111.5 kB (37%)

Content Size

300.7 kB

After Optimization

189.1 kB

In fact, the total size of Leica.org.cn main page is 300.7 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. 25% of websites need less resources to load. Images take 176.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 28.4 kB

  • Original 37.0 kB
  • After minification 35.6 kB
  • After compression 8.6 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 28.4 kB or 77% of the original size.

Image Optimization

-9%

Potential reduce by 15.5 kB

  • Original 176.9 kB
  • After minification 161.4 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. Leica images are well optimized though.

JavaScript Optimization

-77%

Potential reduce by 52.5 kB

  • Original 68.4 kB
  • After minification 57.7 kB
  • After compression 15.9 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 52.5 kB or 77% of the original size.

CSS Optimization

-82%

Potential reduce by 15.1 kB

  • Original 18.3 kB
  • After minification 13.7 kB
  • After compression 3.3 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. Leica.org.cn needs all CSS files to be minified and compressed as it can save up to 15.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (37%)

Requests Now

38

After Optimization

24

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leica. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

leica.org.cn accessibility score

61

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

Heading elements are not in a sequentially-descending order

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

leica.org.cn best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

leica.org.cn SEO score

69

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

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 Leica.org.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 Leica.org.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

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