7.6 sec in total
643 ms
6.1 sec
903 ms
Click here to check amazing Book 70 content. Otherwise, check out these important facts you probably never knew about book70.com
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Visit book70.comWe analyzed Book70.com page load time and found that the first response time was 643 ms and then it took 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.
book70.com performance score
name
value
score
weighting
Value5.7 s
5/100
10%
Value20.6 s
0/100
25%
Value5.7 s
50/100
10%
Value50 ms
100/100
30%
Value0.156
74/100
15%
Value10.3 s
25/100
10%
643 ms
310 ms
300 ms
160 ms
167 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 89% of them (31 requests) were addressed to the original Book70.com, 6% (2 requests) were made to Js.users.51.la and 3% (1 request) were made to . The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Js.users.51.la.
Page size can be reduced by 209.5 kB (8%)
2.5 MB
2.3 MB
In fact, the total size of Book70.com main page is 2.5 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. 70% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.
Potential reduce by 78.0 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. 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 78.0 kB or 82% of the original size.
Potential reduce by 126.8 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. Book 70 images are well optimized though.
Potential reduce by 109 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 109 B or 25% of the original size.
Potential reduce by 4.6 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. Book70.com has all CSS files already compressed.
Number of requests can be reduced by 4 (12%)
33
29
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book 70. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
index.php
643 ms
plug.min.css
310 ms
app.css
300 ms
main.css
160 ms
tj.js
167 ms
common.js
167 ms
21348629.js
1897 ms
21339657.js
2094 ms
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567 ms
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474 ms
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477 ms
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592 ms
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547 ms
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474 ms
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471 ms
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541 ms
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471 ms
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475 ms
20181019092124_152.png
538 ms
titline.png
539 ms
thumb_20190517150638_607.jpg
541 ms
thumb_20190517150635_921.jpg
584 ms
thumb_20190517150631_283.jpg
583 ms
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582 ms
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584 ms
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610 ms
thumb_20190517150617_991.jpg
655 ms
thumb_20190517150612_364.jpg
652 ms
imagecode.php
656 ms
footbg.png
655 ms
1540001934208443.png
653 ms
1560126655878023.jpg
683 ms
20190518084510_585.jpg
724 ms
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2 ms
push.js
576 ms
book70.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
book70.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Browser errors were logged to the console
book70.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
N/A
ZH
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Book70.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), while the claimed language is Chinese. Our system also found out that Book70.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.
book70.com
Open Graph description is not detected on the main page of Book 70. 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: