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bt290.com screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 37

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

bt290.com

bet365娱乐城

Page Load Speed

27.7 sec in total

First Response

3.3 sec

Resources Loaded

24 sec

Page Rendered

374 ms

bt290.com screenshot

About Website

Welcome to bt290.com homepage info - get ready to check Bt 290 best content for China right away, or after learning these important things about bt290.com

Visit bt290.com

Key Findings

We analyzed Bt290.com page load time and found that the first response time was 3.3 sec and then it took 24.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

bt290.com performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

2/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.172

70/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

bt290.com

3328 ms

Home

303 ms

upupFlash

526 ms

refresh

533 ms

public.css

272 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 50% of them (25 requests) were addressed to the original Bt290.com, 50% (25 requests) were made to Imcg.gp-cdn.net. The less responsive or slowest element that took the longest time to load (18.1 sec) relates to the external source Imcg.gp-cdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 183.6 kB (30%)

Content Size

606.3 kB

After Optimization

422.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bt290.com main page is 606.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 420.1 kB which makes up the majority of the site volume.

HTML Optimization

-52%

Potential reduce by 1.2 kB

  • Original 2.4 kB
  • After minification 2.1 kB
  • After compression 1.1 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 250 B, which is 11% 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 1.2 kB or 52% of the original size.

Image Optimization

-12%

Potential reduce by 48.5 kB

  • Original 420.1 kB
  • After minification 371.6 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, Bt 290 needs image optimization as it can save up to 48.5 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 75.1 kB

  • Original 114.8 kB
  • After minification 110.8 kB
  • After compression 39.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 75.1 kB or 65% of the original size.

CSS Optimization

-85%

Potential reduce by 58.7 kB

  • Original 69.1 kB
  • After minification 52.3 kB
  • After compression 10.3 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. Bt290.com needs all CSS files to be minified and compressed as it can save up to 58.7 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (11%)

Requests Now

28

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bt 290. 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

bt290.com

bt290.com

3328 ms

Home

Home

303 ms

upupFlash

upupFlash

526 ms

refresh

refresh

533 ms

public.css

public.css

272 ms

Common6.css

Common6.css

491 ms

electron.css

electron.css

503 ms

jquery-1.8.2.js

jquery-1.8.2.js

523 ms

common.js

common.js

522 ms

jquery.SuperSlide.js

jquery.SuperSlide.js

537 ms

public.js

public.js

543 ms

public.css

public.css

1199 ms

Common6.css

Common6.css

988 ms

electron.css

electron.css

981 ms

common.js

common.js

957 ms

jquery-1.8.2.js

jquery-1.8.2.js

1323 ms

jquery.SuperSlide.js

jquery.SuperSlide.js

940 ms

public.js

public.js

1300 ms

online.png

online.png

352 ms

bg.jpg

bg.jpg

376 ms

head_bg.jpg

head_bg.jpg

2048 ms

lpcj.png

lpcj.png

341 ms

logo.png

logo.png

351 ms

t1_01.jpg

t1_01.jpg

341 ms

t1_02.jpg

t1_02.jpg

343 ms

t1_03.jpg

t1_03.jpg

347 ms

t2.jpg

t2.jpg

518 ms

t3.jpg

t3.jpg

522 ms

t4.jpg

t4.jpg

526 ms

30x35-gt-Casino2.gif

30x35-gt-Casino2.gif

527 ms

thawte-1x.gif

thawte-1x.gif

531 ms

gamcare-1x.gif

gamcare-1x.gif

532 ms

gov-gibraltar-1x.gif

gov-gibraltar-1x.gif

795 ms

18-1x.gif

18-1x.gif

793 ms

online.png

online.png

724 ms

lpcj.png

lpcj.png

829 ms

t1_01.jpg

t1_01.jpg

6867 ms

t1_02.jpg

t1_02.jpg

18143 ms

t1_03.jpg

t1_03.jpg

754 ms

logo.png

logo.png

1030 ms

4x7_arrow..png

4x7_arrow..png

1087 ms

80x19-logo.gif

80x19-logo.gif

1175 ms

t2.jpg

t2.jpg

4146 ms

t3.jpg

t3.jpg

2042 ms

t4.jpg

t4.jpg

3257 ms

30x35-gt-Casino2.gif

30x35-gt-Casino2.gif

1910 ms

thawte-1x.gif

thawte-1x.gif

2296 ms

gamcare-1x.gif

gamcare-1x.gif

3039 ms

18-1x.gif

18-1x.gif

2391 ms

gov-gibraltar-1x.gif

gov-gibraltar-1x.gif

2755 ms

Accessibility Review

bt290.com accessibility score

37

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

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

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

bt290.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

bt290.com SEO score

75

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bt290.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Bt290.com 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

bt290.com

Open Graph description is not detected on the main page of Bt 290. 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: