Tools & Wizards About Us
devz-lab.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

devz-lab.com

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Page Load Speed

7.1 sec in total

First Response

429 ms

Resources Loaded

6.3 sec

Page Rendered

355 ms

devz-lab.com screenshot

About Website

Click here to check amazing Devz Lab content. Otherwise, check out these important facts you probably never knew about devz-lab.com

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Key Findings

We analyzed Devz-lab.com page load time and found that the first response time was 429 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

devz-lab.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value27.1 s

0/100

25%

SI (Speed Index)

Value15.4 s

1/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.553

13/100

15%

TTI (Time to Interactive)

Value31.7 s

0/100

10%

Network Requests Diagram

devz-lab.com

429 ms

www.devz-lab.com

379 ms

public.css

66 ms

master.css

127 ms

min.js

191 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 52% of them (34 requests) were addressed to the original Devz-lab.com, 43% (28 requests) were made to Stst.stststfd.com and 2% (1 request) were made to Stst.ambcgfwzst.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Stst.stststfd.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.3 MB (22%)

Content Size

10.3 MB

After Optimization

8.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Devz-lab.com main page is 10.3 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. 45% of websites need less resources to load. Images take 10.2 MB which makes up the majority of the site volume.

HTML Optimization

-36%

Potential reduce by 228 B

  • Original 640 B
  • After minification 639 B
  • After compression 412 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 228 B or 36% of the original size.

Image Optimization

-22%

Potential reduce by 2.2 MB

  • Original 10.2 MB
  • After minification 8.0 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, Devz Lab needs image optimization as it can save up to 2.2 MB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-27%

Potential reduce by 20.7 kB

  • Original 76.7 kB
  • After minification 76.7 kB
  • After compression 56.0 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 20.7 kB or 27% of the original size.

CSS Optimization

-23%

Potential reduce by 21.8 kB

  • Original 95.1 kB
  • After minification 95.1 kB
  • After compression 73.3 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. Devz-lab.com needs all CSS files to be minified and compressed as it can save up to 21.8 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (35%)

Requests Now

63

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Devz Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

devz-lab.com

devz-lab.com

429 ms

www.devz-lab.com

www.devz-lab.com

379 ms

public.css

public.css

66 ms

master.css

master.css

127 ms

min.js

min.js

191 ms

SuperSlide.js

SuperSlide.js

129 ms

index.js

index.js

129 ms

sitegray_d.css

sitegray_d.css

130 ms

sitegray.js

sitegray.js

131 ms

index.vsb.css

index.vsb.css

189 ms

counter.js

counter.js

190 ms

base.js

base.js

200 ms

base64.js

base64.js

212 ms

formfunc.js

formfunc.js

212 ms

centerCutImg.js

centerCutImg.js

260 ms

ajax.js

ajax.js

261 ms

js.js

js.js

263 ms

ststst.php

ststst.php

1340 ms

logohj.jpg

logohj.jpg

195 ms

search.png

search.png

83 ms

ban2.jpg

ban2.jpg

825 ms

ban1.jpg

ban1.jpg

1051 ms

BD672D6BE2E0A2B26F6971DB342_B93EA274_E099B.png

BD672D6BE2E0A2B26F6971DB342_B93EA274_E099B.png

551 ms

094BABCC29B0D2F1D47189F88DF_25F4766F_13483.jpg

094BABCC29B0D2F1D47189F88DF_25F4766F_13483.jpg

170 ms

ADF56C8EF6632E1241B3781E563_98DCF9B4_22B82.png

ADF56C8EF6632E1241B3781E563_98DCF9B4_22B82.png

329 ms

A60C6AD1A0E52C7FF557D65E382_ACBF50A6_5AFB4.png

A60C6AD1A0E52C7FF557D65E382_ACBF50A6_5AFB4.png

360 ms

C1CC5715F4C09308B9A6328FBDA_F4168883_24DB3.jpg

C1CC5715F4C09308B9A6328FBDA_F4168883_24DB3.jpg

390 ms

23FE465D03CBD848448BB0F92CF_E88EC21A_B8FB.jpg

23FE465D03CBD848448BB0F92CF_E88EC21A_B8FB.jpg

396 ms

2F8F1511D76D270902B89DB7BBF_D83A9FF5_9E0A4.png

2F8F1511D76D270902B89DB7BBF_D83A9FF5_9E0A4.png

488 ms

9DB02BCA85F6B7914171991C1FD_1B782EC0_D53D5.png

9DB02BCA85F6B7914171991C1FD_1B782EC0_D53D5.png

648 ms

024969C45561D2DC6E9E9A2C178_409681A7_9339C.png

024969C45561D2DC6E9E9A2C178_409681A7_9339C.png

594 ms

btn1.png

btn1.png

551 ms

ico2.png

ico2.png

611 ms

ico5.png

ico5.png

563 ms

ico3.png

ico3.png

609 ms

push.js

push.js

716 ms

js-sdk-pro.min.js

js-sdk-pro.min.js

1135 ms

stst.stststfd.com

stst.stststfd.com

1122 ms

style.css

style.css

473 ms

modalStyles.css

modalStyles.css

601 ms

bootstrap.min.css

bootstrap.min.css

815 ms

jquery.min.js

jquery.min.js

828 ms

popper.min.js

popper.min.js

645 ms

bootstrap.min.js

bootstrap.min.js

864 ms

banner.js

banner.js

684 ms

quicklink.umd.js

quicklink.umd.js

801 ms

gf.fc8d6758.png

gf.fc8d6758.png

212 ms

banner.365.png

banner.365.png

429 ms

mzb.png

mzb.png

401 ms

2024ozb.png

2024ozb.png

1015 ms

spb.png

spb.png

618 ms

bg.lanse.png

bg.lanse.png

1940 ms

bet365.png

bet365.png

418 ms

kaiyun.png

kaiyun.png

595 ms

188jinbaobo.png

188jinbaobo.png

630 ms

tychongse.jpg

tychongse.jpg

639 ms

yl.png

yl.png

795 ms

baowei.png

baowei.png

819 ms

wlxe.png

wlxe.png

841 ms

weide.png

weide.png

854 ms

betway.png

betway.png

996 ms

bwin.png

bwin.png

1024 ms

xpj.png

xpj.png

1051 ms

venetian.png

venetian.png

1068 ms

banner.bw.png

banner.bw.png

1349 ms

Accessibility Review

devz-lab.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

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

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

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

devz-lab.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

devz-lab.com SEO score

82

Search Engine Optimization Advices

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devz-lab.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 Devz-lab.com main page’s claimed encoding is . 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

devz-lab.com

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