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web515.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

web515.com

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Page Load Speed

3 sec in total

First Response

849 ms

Resources Loaded

2 sec

Page Rendered

181 ms

web515.com screenshot

About Website

Visit web515.com now to see the best up-to-date Web 515 content and also check out these interesting facts you probably never knew about web515.com

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Visit web515.com

Key Findings

We analyzed Web515.com page load time and found that the first response time was 849 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

web515.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value16.9 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.242

51/100

15%

TTI (Time to Interactive)

Value16.3 s

5/100

10%

Network Requests Diagram

web515.com

849 ms

www.web515.com

889 ms

js.js

100 ms

dh_index.css

152 ms

zx_index.css

164 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Web515.com and no external sources were called. The less responsive or slowest element that took the longest time to load (889 ms) belongs to the original domain Web515.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 39.7 kB (61%)

Content Size

65.4 kB

After Optimization

25.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Web515.com main page is 65.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 23.7 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 14.8 kB

  • Original 20.1 kB
  • After minification 20.1 kB
  • After compression 5.3 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 14.8 kB or 74% of the original size.

Image Optimization

-44%

Potential reduce by 10.4 kB

  • Original 23.7 kB
  • After minification 13.3 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, Web 515 needs image optimization as it can save up to 10.4 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-52%

Potential reduce by 4.1 kB

  • Original 7.9 kB
  • After minification 7.9 kB
  • After compression 3.8 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 4.1 kB or 52% of the original size.

CSS Optimization

-75%

Potential reduce by 10.3 kB

  • Original 13.6 kB
  • After minification 12.6 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. Web515.com needs all CSS files to be minified and compressed as it can save up to 10.3 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Web 515. According to our analytics all requests are already optimized.

Network Requests Diagram

web515.com

web515.com

849 ms

www.web515.com

www.web515.com

889 ms

js.js

js.js

100 ms

dh_index.css

dh_index.css

152 ms

zx_index.css

zx_index.css

164 ms

thea1.js

thea1.js

106 ms

thea2.js

thea2.js

112 ms

clock.js

clock.js

106 ms

thea3.js

thea3.js

104 ms

thea4.js

thea4.js

66 ms

thea5.js

thea5.js

93 ms

thea6.js

thea6.js

103 ms

logo.gif

logo.gif

109 ms

sy-3.gif

sy-3.gif

87 ms

bg.png

bg.png

87 ms

logo.png

logo.png

85 ms

web.gif

web.gif

86 ms

titVisual.png

titVisual.png

129 ms

Accessibility Review

web515.com accessibility score

45

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

web515.com 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

web515.com SEO score

69

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

Page is blocked from indexing

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

    N/A

  • Language Claimed

    ZH

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Web515.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Chinese. Our system also found out that Web515.com main page’s claimed encoding is gbk. 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

web515.com

Open Graph description is not detected on the main page of Web 515. 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: