Access bookraina.com. 完美体育官方网站（中国）科技有限公司

bookraina.com screenshot

90

Performance

Renders faster than
91% of other websites
66

Accessibility

Visual factors better than
that of 31% of websites
92

Best Practices

More advanced features
available than in
81% of websites
82

SEO

Google-friendlier than
44% of websites

First Response

467 ms

Resources Loaded

6.1 sec

Page Rendered

609 ms

bookraina.com screenshot

About Website

Click here to check amazing Bookraina content. Otherwise, check out these important facts you probably never knew about bookraina.com

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Visit bookraina.com

Key Findings

We analyzed Bookraina.com page load time and found that the first response time was 467 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

76/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

bookraina.com

467 ms

bookraina.com.ua

2216 ms

core.css

286 ms

style.css

290 ms

style.css

293 ms

Our browser made a total of 151 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Bookraina.com, 68% (102 requests) were made to Bookraina.com.ua and 8% (12 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source Bookraina.com.ua.

Content Size

1.6 MB

After Optimization

629.1 kB

In fact, the total size of Bookraina.com main page is 1.6 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. 50% of websites need less resources to load. Javascripts take 592.7 kB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 391.6 kB

Original 420.3 kB
After minification 131.6 kB
After compression 28.7 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 288.7 kB, which is 69% 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 391.6 kB or 93% of the original size.

Image Optimization

-11%

Potential reduce by 56.1 kB

Original 491.0 kB
After minification 434.9 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, Bookraina needs image optimization as it can save up to 56.1 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 449.0 kB

Original 592.7 kB
After minification 449.9 kB
After compression 143.8 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 449.0 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 102.2 kB

Original 123.9 kB
After minification 101.2 kB
After compression 21.7 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. Bookraina.com needs all CSS files to be minified and compressed as it can save up to 102.2 kB or 83% of the original size.

Requests Now

146

After Optimization

59

The browser has sent 146 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bookraina. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

The document uses <meta http-equiv="refresh">

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

robots.txt is not valid

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

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

bookraina.com

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