Tools & Wizards About Us
51bzw.net screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

51bzw.net

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Page Load Speed

13.8 sec in total

First Response

722 ms

Resources Loaded

9 sec

Page Rendered

4.1 sec

51bzw.net screenshot

About Website

Welcome to 51bzw.net homepage info - get ready to check 51 Bzw best content right away, or after learning these important things about 51bzw.net

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Visit 51bzw.net

Key Findings

We analyzed 51bzw.net page load time and found that the first response time was 722 ms and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

51bzw.net performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

51bzw.net

722 ms

www.51bzw.net

841 ms

index.css

381 ms

ab77b6ea7f3fbf79.js

652 ms

95a5_bwtl_img_bg.jpg

1780 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 67% of them (36 requests) were addressed to the original 51bzw.net, 26% (14 requests) were made to Bdimg.share.baidu.com and 4% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (5.5 sec) belongs to the original domain 51bzw.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (25%)

Content Size

5.3 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51bzw.net main page is 5.3 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. 70% of websites need less resources to load. Images take 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 86.6 kB

  • Original 97.2 kB
  • After minification 95.7 kB
  • After compression 10.6 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 86.6 kB or 89% of the original size.

Image Optimization

-24%

Potential reduce by 1.2 MB

  • Original 5.2 MB
  • After minification 3.9 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, 51 Bzw needs image optimization as it can save up to 1.2 MB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 68 B

  • Original 50.8 kB
  • After minification 50.8 kB
  • After compression 50.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-26%

Potential reduce by 584 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 1.6 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. 51bzw.net needs all CSS files to be minified and compressed as it can save up to 584 B or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (25%)

Requests Now

52

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Bzw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

51bzw.net

51bzw.net

722 ms

www.51bzw.net

www.51bzw.net

841 ms

index.css

index.css

381 ms

ab77b6ea7f3fbf79.js

ab77b6ea7f3fbf79.js

652 ms

95a5_bwtl_img_bg.jpg

95a5_bwtl_img_bg.jpg

1780 ms

guanggao.htm

guanggao.htm

538 ms

baidu_jgylogo3.gif

baidu_jgylogo3.gif

1243 ms

95a5_bwtl_img_01.jpg

95a5_bwtl_img_01.jpg

1108 ms

95a5_bwtl_img_02.jpg

95a5_bwtl_img_02.jpg

1535 ms

95a5_bwtl_img_03.jpg

95a5_bwtl_img_03.jpg

1742 ms

95a5_bwtl_img_04.jpg

95a5_bwtl_img_04.jpg

1312 ms

95a5_bwtl_img_05.jpg

95a5_bwtl_img_05.jpg

1539 ms

95a5_bwtl_img_06.jpg

95a5_bwtl_img_06.jpg

1510 ms

95a5_bwtl_img_07.jpg

95a5_bwtl_img_07.jpg

1538 ms

95a5_bwtl_img_08.jpg

95a5_bwtl_img_08.jpg

5474 ms

95a5_bwtl_img_09.jpg

95a5_bwtl_img_09.jpg

2836 ms

95a5_bwtl_img_010.jpg

95a5_bwtl_img_010.jpg

4858 ms

95a5_bwtl_img_011.jpg

95a5_bwtl_img_011.jpg

2022 ms

95a5_bwtl_img_012.jpg

95a5_bwtl_img_012.jpg

5268 ms

95a5_bwtl_img_013.jpg

95a5_bwtl_img_013.jpg

2021 ms

ad.jpg

ad.jpg

2199 ms

ad1.jpg

ad1.jpg

2853 ms

95a5_bwtl_img_014.jpg

95a5_bwtl_img_014.jpg

2432 ms

95a5_bwtl_img_015.jpg

95a5_bwtl_img_015.jpg

2663 ms

95a5_bwtl_img_017.jpg

95a5_bwtl_img_017.jpg

2899 ms

95a5_bwtl_img_018.jpg

95a5_bwtl_img_018.jpg

3053 ms

logo.jpg

logo.jpg

3264 ms

logo2.jpg

logo2.jpg

3145 ms

logo3.jpg

logo3.jpg

3450 ms

04.jpg

04.jpg

3370 ms

05.jpg

05.jpg

3474 ms

06.jpg

06.jpg

3667 ms

logo4.jpg

logo4.jpg

3688 ms

logo5.jpg

logo5.jpg

3705 ms

logo6.jpg

logo6.jpg

3906 ms

share.js

share.js

495 ms

hm.js

hm.js

1482 ms

share_api.js

share_api.js

222 ms

share_view.js

share_view.js

431 ms

select_api.js

select_api.js

432 ms

select_view.js

select_view.js

433 ms

image_api.js

image_api.js

444 ms

image_view.js

image_view.js

433 ms

tangram.js

tangram.js

455 ms

api_base.js

api_base.js

426 ms

view_base.js

view_base.js

217 ms

partners.js

partners.js

217 ms

share_style0_16.css

share_style0_16.css

231 ms

icons_0_16.png

icons_0_16.png

233 ms

hm.gif

hm.gif

322 ms

logger.js

logger.js

221 ms

95a5_bwtl_img_08.1.jpg

95a5_bwtl_img_08.1.jpg

460 ms

95a5_bwtl_img_09.1.jpg

95a5_bwtl_img_09.1.jpg

220 ms

95a5_bwtl_img_010.1.jpg

95a5_bwtl_img_010.1.jpg

1012 ms

Accessibility Review

51bzw.net accessibility score

58

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

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

Best Practices

51bzw.net best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

51bzw.net SEO score

58

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Document uses plugins

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51bzw.net 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) and no language is claimed in <html> or <meta> tags either. Our system also found out that 51bzw.net main page’s claimed encoding is gb2312. 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

51bzw.net

Open Graph description is not detected on the main page of 51 Bzw. 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: