Report Summary

  • 49

    Performance

    Renders faster than
    68% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

book4you.net

Parking Page

Page Load Speed

18.9 sec in total

First Response

1 sec

Resources Loaded

16.5 sec

Page Rendered

1.3 sec

book4you.net screenshot

About Website

Visit book4you.net now to see the best up-to-date Book 4 You content and also check out these interesting facts you probably never knew about book4you.net

Vietravel - Nhà tổ chức du lịch chuyên nghiệp. Website travel.com.vn tự hào là mạng bán tour du lịch trực tuyến số 1 tại Việt Nam.

Visit book4you.net

Key Findings

We analyzed Book4you.net page load time and found that the first response time was 1 sec and then it took 17.8 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

book4you.net performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value670 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

book4you.net

1025 ms

travel.com.vn

801 ms

travel.com.vn

2639 ms

jquery-ui-1.10.4.custom.css

488 ms

pager_simple_orange.css

733 ms

Our browser made a total of 211 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Book4you.net, 75% (158 requests) were made to Travel.com.vn and 5% (11 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (9.6 sec) relates to the external source Travel.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.9 MB (17%)

Content Size

11.0 MB

After Optimization

9.1 MB

In fact, the total size of Book4you.net main page is 11.0 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 8.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 140.8 kB

  • Original 169.3 kB
  • After minification 148.4 kB
  • After compression 28.5 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. This page needs HTML code to be minified as it can gain 20.9 kB, which is 12% 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 140.8 kB or 83% of the original size.

Image Optimization

-3%

Potential reduce by 305.6 kB

  • Original 8.9 MB
  • After minification 8.6 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. Book 4 You images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 1.2 MB

  • Original 1.5 MB
  • After minification 1.2 MB
  • After compression 346.9 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 1.2 MB or 78% of the original size.

CSS Optimization

-87%

Potential reduce by 273.0 kB

  • Original 313.5 kB
  • After minification 251.7 kB
  • After compression 40.5 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. Book4you.net needs all CSS files to be minified and compressed as it can save up to 273.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 59 (30%)

Requests Now

196

After Optimization

137

The browser has sent 196 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book 4 You. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

book4you.net accessibility score

89

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

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

book4you.net best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

book4you.net SEO score

92

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 uses legible font sizes

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Book4you.net can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Book4you.net 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

Open Graph data is detected on the main page of Book 4 You. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: