Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

art19.cn

拾久艺术丨最生活的原创艺术品交易平台!

Page Load Speed

35.8 sec in total

First Response

1.5 sec

Resources Loaded

33.6 sec

Page Rendered

676 ms

art19.cn screenshot

About Website

Visit art19.cn now to see the best up-to-date Art 19 content for China and also check out these interesting facts you probably never knew about art19.cn

拾久艺术,集聚全网最生活的原创艺术精品,通过艺术品、线上展览、压箱底等方式,展示了国画、油画、版画、丙烯、书法、篆刻、综合材料、水彩、水粉、雕塑、装置、手工艺品等所有类别,为广大艺术爱好者在追求生活品质的同时提供了最佳的精神栖所!

Visit art19.cn

Key Findings

We analyzed Art19.cn page load time and found that the first response time was 1.5 sec and then it took 34.3 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 12 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

art19.cn performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value5,770 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.215

58/100

15%

TTI (Time to Interactive)

Value22.7 s

1/100

10%

Network Requests Diagram

art19.cn

1538 ms

www.art19.cn

4469 ms

uaredirect.js

2127 ms

jquery-1.10.2.min.js

5562 ms

function.js

8235 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 88% of them (21 requests) were addressed to the original Art19.cn, 4% (1 request) were made to Kzcdn.itc.cn and 4% (1 request) were made to Js.tongji.linezing.com. The less responsive or slowest element that took the longest time to load (19.8 sec) belongs to the original domain Art19.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.0 kB (59%)

Content Size

226.6 kB

After Optimization

92.5 kB

In fact, the total size of Art19.cn main page is 226.6 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. Javascripts take 119.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 16.4 kB

  • Original 21.3 kB
  • After minification 17.4 kB
  • After compression 5.0 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 3.9 kB, which is 18% 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 16.4 kB or 77% of the original size.

Image Optimization

-19%

Potential reduce by 15.9 kB

  • Original 85.7 kB
  • After minification 69.8 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, Art 19 needs image optimization as it can save up to 15.9 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-85%

Potential reduce by 101.8 kB

  • Original 119.6 kB
  • After minification 87.9 kB
  • After compression 17.8 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 101.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (40%)

Requests Now

10

After Optimization

6

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Art 19. 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

art19.cn accessibility score

59

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

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

art19.cn best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

art19.cn SEO score

83

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Art19.cn 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 Art19.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 Art 19. 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: