Tools & Wizards About Us
vietnambooking.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

vietnambooking.com

Welcome to nginx!

Page Load Speed

23.6 sec in total

First Response

580 ms

Resources Loaded

22.4 sec

Page Rendered

591 ms

vietnambooking.com screenshot

About Website

Visit vietnambooking.com now to see the best up-to-date Vietnambooking content for Vietnam and also check out these interesting facts you probably never knew about vietnambooking.com

VietNam Booking hỗ trợ đặt vé máy bay, phòng khách sạn, tour du lịch và dịch vụ tư vấn visa dễ dàng và nhanh chóng. Với hàng triệu khách hàng tin dùng.

Visit vietnambooking.com

Key Findings

We analyzed Vietnambooking.com page load time and found that the first response time was 580 ms and then it took 23 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

vietnambooking.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value14.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.8 s

0/100

25%

SI (Speed Index)

Value22.7 s

0/100

10%

TBT (Total Blocking Time)

Value1,080 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value29.7 s

0/100

10%

Network Requests Diagram

vietnambooking.com

580 ms

www.vietnambooking.com

5296 ms

bootstrap.min.css

1791 ms

bootstrap-theme.min.css

1147 ms

960.css

909 ms

Our browser made a total of 212 requests to load all elements on the main page. We found that 75% of them (159 requests) were addressed to the original Vietnambooking.com, 15% (31 requests) were made to Data.vietnambooking.com and 6% (13 requests) were made to Embed.tawk.to. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Vietnambooking.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (27%)

Content Size

6.9 MB

After Optimization

5.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vietnambooking.com main page is 6.9 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 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 224.0 kB

  • Original 254.8 kB
  • After minification 213.4 kB
  • After compression 30.8 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 41.4 kB, which is 16% 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 224.0 kB or 88% of the original size.

Image Optimization

-26%

Potential reduce by 1.5 MB

  • Original 5.9 MB
  • After minification 4.3 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. Obviously, Vietnambooking needs image optimization as it can save up to 1.5 MB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-7%

Potential reduce by 40.2 kB

  • Original 614.1 kB
  • After minification 614.0 kB
  • After compression 573.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-25%

Potential reduce by 35.5 kB

  • Original 141.2 kB
  • After minification 117.7 kB
  • After compression 105.7 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. Vietnambooking.com needs all CSS files to be minified and compressed as it can save up to 35.5 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 95 (47%)

Requests Now

202

After Optimization

107

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 202 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vietnambooking. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 56 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vietnambooking.com

vietnambooking.com

580 ms

www.vietnambooking.com

www.vietnambooking.com

5296 ms

bootstrap.min.css

bootstrap.min.css

1791 ms

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1147 ms

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H%C3%ACnh-03-1.jpg

H%C3%ACnh-03-1.jpg

2867 ms

ho-chieu-pho-thong-17-1-2018-1.jpg

ho-chieu-pho-thong-17-1-2018-1.jpg

3124 ms

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thu-tuc-lam-lai-ho-chieu-1632023.jpg

3194 ms

backtotop.png

backtotop.png

2994 ms

c.gif

c.gif

7 ms

Accessibility Review

vietnambooking.com accessibility score

82

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Best Practices

vietnambooking.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the notification permission on page load

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

High

Page has valid source maps

SEO Factors

vietnambooking.com SEO score

91

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

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

High

Tap targets are not sized appropriately

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 Vietnambooking.com 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 Vietnambooking.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

vietnambooking.com

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