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r57.biz screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

r57.biz

R57 Shell | C99 Shell | Shell | TXT Shell | R57.php | c99.php | r57shell.net

Page Load Speed

11.2 sec in total

First Response

629 ms

Resources Loaded

4.2 sec

Page Rendered

6.4 sec

r57.biz screenshot

About Website

Welcome to r57.biz homepage info - get ready to check R57 best content right away, or after learning these important things about r57.biz

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Visit r57.biz

Key Findings

We analyzed R57.biz page load time and found that the first response time was 629 ms and then it took 10.5 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

r57.biz performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

52/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value3.9 s

89/100

10%

Network Requests Diagram

www.r57shell.net

629 ms

bootstrap.min.css

92 ms

bootstrap.bundle.min.js

227 ms

font-awesome.min.css

223 ms

tiny.png

223 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original R57.biz, 7% (3 requests) were made to Cdn.jsdelivr.net and 2% (1 request) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source R57shell.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 723.7 kB (27%)

Content Size

2.7 MB

After Optimization

2.0 MB

  • HTML
  • Images

In fact, the total size of R57.biz main page is 2.7 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. 45% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 39.0 kB

  • Original 42.9 kB
  • After minification 26.3 kB
  • After compression 4.0 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 16.7 kB, which is 39% 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 39.0 kB or 91% of the original size.

Image Optimization

-26%

Potential reduce by 684.8 kB

  • Original 2.7 MB
  • After minification 2.0 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, R57 needs image optimization as it can save up to 684.8 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 3 (8%)

Requests Now

40

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of R57. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.r57shell.net

www.r57shell.net

629 ms

bootstrap.min.css

bootstrap.min.css

92 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

227 ms

font-awesome.min.css

font-awesome.min.css

223 ms

tiny.png

tiny.png

223 ms

wsomini.png

wsomini.png

490 ms

anonghost.png

anonghost.png

826 ms

whmcs_killer.png

whmcs_killer.png

490 ms

asp_file_manager.png

asp_file_manager.png

563 ms

kacak.png

kacak.png

488 ms

zerobyteshell.png

zerobyteshell.png

376 ms

pouya.png

pouya.png

511 ms

aspxshell.png

aspxshell.png

590 ms

aspxspy.png

aspxspy.png

629 ms

aspx-wso.png

aspx-wso.png

611 ms

papicemot212.png

papicemot212.png

680 ms

turkshell.png

turkshell.png

747 ms

0byt3.png

0byt3.png

925 ms

p0wny.png

p0wny.png

828 ms

cihshell.png

cihshell.png

857 ms

b374k.png

b374k.png

909 ms

imunify360.png

imunify360.png

1151 ms

popper.min.js

popper.min.js

92 ms

bootstrap.min.js

bootstrap.min.js

148 ms

alfa.png

alfa.png

1756 ms

litespeed-bypass.png

litespeed-bypass.png

965 ms

wso.png

wso.png

1259 ms

c99.png

c99.png

1132 ms

indoxploit-logged.png

indoxploit-logged.png

3433 ms

r57.png

r57.png

1217 ms

mysqli_load_file.png

mysqli_load_file.png

1316 ms

glob_read_dir.png

glob_read_dir.png

1386 ms

php7x_bypass_disable_functions.png

php7x_bypass_disable_functions.png

1530 ms

MARIJUANA.png

MARIJUANA.png

1573 ms

angel.png

angel.png

1831 ms

adminer.png

adminer.png

1689 ms

mini2022.png

mini2022.png

1839 ms

wso-green.png

wso-green.png

2924 ms

sym403.png

sym403.png

2530 ms

indosec.png

indosec.png

2350 ms

jquery-3.5.1.slim.min.js

jquery-3.5.1.slim.min.js

90 ms

Accessibility Review

r57.biz accessibility score

66

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

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

r57.biz 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

r57.biz SEO score

93

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise R57.biz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that R57.biz 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

r57.biz

Open Graph description is not detected on the main page of R57. 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: