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book.uttbook.com screenshot

Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

book.uttbook.com

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Page Load Speed

4.1 sec in total

First Response

996 ms

Resources Loaded

3 sec

Page Rendered

191 ms

book.uttbook.com screenshot

About Website

Click here to check amazing Book Uttbook content for United States. Otherwise, check out these important facts you probably never knew about book.uttbook.com

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Key Findings

We analyzed Book.uttbook.com page load time and found that the first response time was 996 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

book.uttbook.com performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

book.uttbook.com

996 ms

style_10_common.css

553 ms

common.js

683 ms

pic.php

137 ms

bg.jpg

1383 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that all of those requests were addressed to Book.uttbook.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Book.uttbook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 167.8 kB (19%)

Content Size

895.5 kB

After Optimization

727.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Book.uttbook.com main page is 895.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 756.8 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.4 kB

  • Original 33.9 kB
  • After minification 33.8 kB
  • After compression 7.5 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 26.4 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 60.5 kB

  • Original 756.8 kB
  • After minification 696.3 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 Uttbook images are well optimized though.

JavaScript Optimization

-77%

Potential reduce by 52.3 kB

  • Original 67.6 kB
  • After minification 55.2 kB
  • After compression 15.3 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 52.3 kB or 77% of the original size.

CSS Optimization

-77%

Potential reduce by 28.7 kB

  • Original 37.3 kB
  • After minification 36.2 kB
  • After compression 8.6 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. Book.uttbook.com needs all CSS files to be minified and compressed as it can save up to 28.7 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (27%)

Requests Now

26

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book Uttbook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

book.uttbook.com

book.uttbook.com

996 ms

style_10_common.css

style_10_common.css

553 ms

common.js

common.js

683 ms

pic.php

pic.php

137 ms

bg.jpg

bg.jpg

1383 ms

bg_header.gif

bg_header.gif

70 ms

logo.gif

logo.gif

69 ms

list.gif

list.gif

225 ms

collapsed_no.gif

collapsed_no.gif

219 ms

logox.gif

logox.gif

371 ms

orlando.gif

orlando.gif

364 ms

logo2.gif

logo2.gif

248 ms

1.gif

1.gif

296 ms

2.gif

2.gif

314 ms

3.gif

3.gif

318 ms

4.gif

4.gif

370 ms

5.gif

5.gif

472 ms

6.gif

6.gif

401 ms

7.gif

7.gif

431 ms

8.gif

8.gif

529 ms

9.gif

9.gif

440 ms

10.gif

10.gif

478 ms

icon_nav.gif

icon_nav.gif

521 ms

newtopic.gif

newtopic.gif

525 ms

ann_icon.gif

ann_icon.gif

574 ms

listbg.gif

listbg.gif

550 ms

forum.gif

forum.gif

561 ms

Accessibility Review

book.uttbook.com accessibility score

64

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.

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

High

<object> elements do not have alternate text

Best Practices

book.uttbook.com best practices score

67

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

book.uttbook.com SEO score

62

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

High

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Book.uttbook.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 Book.uttbook.com main page’s claimed encoding is gbk. 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

book.uttbook.com

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