Tools & Wizards About Us

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

577bz.com

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Page Load Speed

3 sec in total

First Response

379 ms

Resources Loaded

2.2 sec

Page Rendered

358 ms

About Website

Welcome to 577bz.com homepage info - get ready to check 577 Bz best content right away, or after learning these important things about 577bz.com

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Visit 577bz.com

Key Findings

We analyzed 577bz.com page load time and found that the first response time was 379 ms and then it took 2.6 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

577bz.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value19.8 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

index.php

379 ms

push.js

498 ms

tj.js

81 ms

common.js

158 ms

rtgcsd4.sx32.xyz

638 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 50% of them (3 requests) were addressed to the original 577bz.com, 17% (1 request) were made to Push.zhanzhang.baidu.com and 17% (1 request) were made to Rtgcsd4.sx32.xyz. The less responsive or slowest element that took the longest time to load (650 ms) relates to the external source Thfewasz6.sx36.xyz.

Page Optimization Overview & Recommendations

Page size can be reduced by 930 B (42%)

Content Size

2.2 kB

After Optimization

1.3 kB

  • HTML
  • JavaScript

In fact, the total size of 577bz.com main page is 2.2 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 1.1 kB which makes up the majority of the site volume.

HTML Optimization

-46%

Potential reduce by 520 B

  • Original 1.1 kB
  • After minification 1.1 kB
  • After compression 613 B

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 520 B or 46% of the original size.

JavaScript Optimization

-37%

Potential reduce by 410 B

  • Original 1.1 kB
  • After minification 1.1 kB
  • After compression 696 B

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 410 B or 37% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • AJAX
  • JavaScript

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 577 Bz. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

577bz.com accessibility score

57

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

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

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

577bz.com 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

Browser errors were logged to the console

SEO Factors

577bz.com SEO score

85

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

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 577bz.com 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 577bz.com 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

Open Graph description is not detected on the main page of 577 Bz. 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: