Tools & Wizards About Us
vietjets.com.vn screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

vietjets.com.vn

Vietjet Air | Bay giá rẻ - Vui vẻ cả nhà | Giá chỉ từ 58.OOO VNĐ

Page Load Speed

9.4 sec in total

First Response

1 sec

Resources Loaded

8.1 sec

Page Rendered

298 ms

vietjets.com.vn screenshot

About Website

Click here to check amazing Vietjet S content for Vietnam. Otherwise, check out these important facts you probably never knew about vietjets.com.vn

Bay nội địa - Bay quốc tế siêu rẻ với VietJet Air - Giá chỉ từ 58.OOO VND. Đặt mua vé máy bay Vietjet Air dễ dàng, nhanh chóng, thanh toán bảo mật an toàn tuyệt đối.

Visit vietjets.com.vn

Key Findings

We analyzed Vietjets.com.vn page load time and found that the first response time was 1 sec and then it took 8.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vietjets.com.vn performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value22.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,230 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value21.8 s

1/100

10%

Network Requests Diagram

vietjets.com.vn

1031 ms

vietjets.com.vn

2214 ms

gtm.js

68 ms

bootstrap.min.css

284 ms

jquery-ui.min.css

566 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 82% of them (67 requests) were addressed to the original Vietjets.com.vn, 16% (13 requests) were made to Live-tawk.vievent.net and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Vietjets.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 860.3 kB (18%)

Content Size

4.7 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vietjets.com.vn main page is 4.7 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. 60% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 92.9 kB

  • Original 116.0 kB
  • After minification 105.7 kB
  • After compression 23.1 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 92.9 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 293.8 kB

  • Original 3.6 MB
  • After minification 3.3 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. Vietjet S images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 450.0 kB

  • Original 832.5 kB
  • After minification 832.2 kB
  • After compression 382.5 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 450.0 kB or 54% of the original size.

CSS Optimization

-26%

Potential reduce by 23.6 kB

  • Original 90.8 kB
  • After minification 90.5 kB
  • After compression 67.3 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. Vietjets.com.vn needs all CSS files to be minified and compressed as it can save up to 23.6 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (55%)

Requests Now

74

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vietjet S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vietjets.com.vn

vietjets.com.vn

1031 ms

vietjets.com.vn

vietjets.com.vn

2214 ms

gtm.js

gtm.js

68 ms

bootstrap.min.css

bootstrap.min.css

284 ms

jquery-ui.min.css

jquery-ui.min.css

566 ms

jquery-ui.theme.min.css

jquery-ui.theme.min.css

783 ms

jquery.bxslider.css

jquery.bxslider.css

782 ms

style_2019.css

style_2019.css

1105 ms

style2.css

style2.css

849 ms

jquery.dataTables.min.css

jquery.dataTables.min.css

846 ms

uniform.default.css

uniform.default.css

845 ms

accounting.min.js

accounting.min.js

1040 ms

jquery.min.js

jquery.min.js

1296 ms

smoke.css

smoke.css

1125 ms

smoke.min.js

smoke.min.js

1127 ms

font-awesome.min.css

font-awesome.min.css

1124 ms

pretty-checkbox.css

pretty-checkbox.css

1309 ms

font-awesome.min.css

font-awesome.min.css

1377 ms

settings.css

settings.css

1404 ms

jquery.themepunch.tools.min.js

jquery.themepunch.tools.min.js

1409 ms

jquery.themepunch.revolution.min.js

jquery.themepunch.revolution.min.js

1686 ms

jquery.uniform.js

jquery.uniform.js

1552 ms

jquery.nicescroll.min.js

jquery.nicescroll.min.js

1811 ms

ext.js

ext.js

1649 ms

bootstrap.min.js

bootstrap.min.js

1683 ms

js

js

80 ms

jquery-ui.min.js

jquery-ui.min.js

1968 ms

jquery.validate.min.js

jquery.validate.min.js

1844 ms

ui.datepicker.lunar.min.js

ui.datepicker.lunar.min.js

1923 ms

jquery.bxslider.js

jquery.bxslider.js

2001 ms

jquery.cookie.js

jquery.cookie.js

2003 ms

app_pc.js

app_pc.js

2077 ms

bgmay.jpg

bgmay.jpg

892 ms

j30-sprite-nav-icons.png

j30-sprite-nav-icons.png

501 ms

vietjetbookingw.png

vietjetbookingw.png

555 ms

hotline.png

hotline.png

560 ms

slide-6.jpg

slide-6.jpg

1393 ms

slide-1.jpg

slide-1.jpg

1927 ms

slide-2.jpg

slide-2.jpg

1592 ms

slide-3.jpg

slide-3.jpg

1441 ms

slide-4.jpg

slide-4.jpg

1391 ms

bgActive.png

bgActive.png

1149 ms

index_plane_w.png

index_plane_w.png

1409 ms

BGKSActive.png

BGKSActive.png

1676 ms

HotelIcon.png

HotelIcon.png

1677 ms

location.png

location.png

1674 ms

refresh.png

refresh.png

1722 ms

5.png

5.png

1865 ms

6.png

6.png

1932 ms

Od-1_1.jpg

Od-1_1.jpg

2230 ms

thumb.php

thumb.php

1965 ms

thumb.php

thumb.php

2009 ms

thumb.php

thumb.php

2145 ms

app-store.png

app-store.png

2182 ms

google-play.png

google-play.png

2190 ms

dathongbao.png

dathongbao.png

2245 ms

Credit-Card-Logos.png

Credit-Card-Logos.png

2290 ms

thanhtoanvisa.png

thanhtoanvisa.png

2420 ms

vna_03.png

vna_03.png

2402 ms

sprite-j30.png

sprite-j30.png

2406 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2739 ms

default

default

68 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2389 ms

GraublauWeb-regular.otf

GraublauWeb-regular.otf

2433 ms

GraublauWeb-bold.otf

GraublauWeb-bold.otf

2772 ms

revolution.extension.slideanims.min.js

revolution.extension.slideanims.min.js

2336 ms

revolution.extension.navigation.min.js

revolution.extension.navigation.min.js

2332 ms

ui-bg_inset-hard_100_fcfdfd_1x100.png

ui-bg_inset-hard_100_fcfdfd_1x100.png

2394 ms

loader.gif

loader.gif

282 ms

revicons.woff

revicons.woff

260 ms

twk-arr-find-polyfill.js

twk-arr-find-polyfill.js

104 ms

twk-object-values-polyfill.js

twk-object-values-polyfill.js

105 ms

twk-event-polyfill.js

twk-event-polyfill.js

11 ms

twk-entries-polyfill.js

twk-entries-polyfill.js

10 ms

twk-iterator-polyfill.js

twk-iterator-polyfill.js

11 ms

twk-promise-polyfill.js

twk-promise-polyfill.js

12 ms

twk-main.js

twk-main.js

41 ms

twk-vendor.js

twk-vendor.js

15 ms

twk-chunk-vendors.js

twk-chunk-vendors.js

22 ms

twk-chunk-common.js

twk-chunk-common.js

39 ms

twk-runtime.js

twk-runtime.js

20 ms

twk-app.js

twk-app.js

21 ms

Accessibility Review

vietjets.com.vn accessibility score

54

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

Low

No form fields have multiple labels

High

Form elements do not have associated labels

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

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

vietjets.com.vn best practices score

58

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

Displays images with incorrect aspect ratio

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

vietjets.com.vn 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 Vietjets.com.vn 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 Vietjets.com.vn 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

vietjets.com.vn

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