Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

onlinedown.net

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Page Load Speed

42.3 sec in total

First Response

1 sec

Resources Loaded

38.4 sec

Page Rendered

2.9 sec

onlinedown.net screenshot

About Website

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Visit onlinedown.net

Key Findings

We analyzed Onlinedown.net page load time and found that the first response time was 1 sec and then it took 41.3 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.

Performance Metrics

onlinedown.net performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value26.0 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value23.9 s

1/100

10%

Network Requests Diagram

onlinedown.net

1032 ms

www.onlinedown.net

5427 ms

index_20140521.css

1605 ms

slider.css

667 ms

jquery-1.9.1.min.js

5165 ms

Our browser made a total of 310 requests to load all elements on the main page. We found that 77% of them (239 requests) were addressed to the original Onlinedown.net, 4% (11 requests) were made to Pos.baidu.com and 2% (7 requests) were made to T11.baidu.com. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source T12.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (29%)

Content Size

4.0 MB

After Optimization

2.8 MB

In fact, the total size of Onlinedown.net main page is 4.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 119.5 kB

  • Original 142.3 kB
  • After minification 134.3 kB
  • After compression 22.8 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 119.5 kB or 84% of the original size.

Image Optimization

-18%

Potential reduce by 559.0 kB

  • Original 3.1 MB
  • After minification 2.6 MB

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, Onlinedown needs image optimization as it can save up to 559.0 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 450.2 kB

  • Original 678.1 kB
  • After minification 672.5 kB
  • After compression 227.9 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 450.2 kB or 66% of the original size.

CSS Optimization

-82%

Potential reduce by 26.4 kB

  • Original 32.0 kB
  • After minification 29.0 kB
  • After compression 5.6 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. Onlinedown.net needs all CSS files to be minified and compressed as it can save up to 26.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 55 (18%)

Requests Now

306

After Optimization

251

The browser has sent 306 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onlinedown. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

onlinedown.net accessibility score

49

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Definition list items are not wrapped in <dl> elements

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

onlinedown.net 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

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

onlinedown.net SEO score

92

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Onlinedown.net 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 Onlinedown.net 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 Onlinedown. 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: