Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

vietair.com.vn

Đặt Vé Máy Bay giá Rẻ 2024 Nhanh Chóng, Thuận Tiện, Hỗ Trợ 24/7

Page Load Speed

48.2 sec in total

First Response

533 ms

Resources Loaded

47.4 sec

Page Rendered

231 ms

About Website

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

Đặt vé máy bay tại VietAIR nhanh chóng, tiện lợi, an toàn. Nhiều vé máy bay giá rẻ hấp dẫn. Liên hệ hotline 19001796 để được nhân viên tư vấn tận tình, chu đáo.

Visit vietair.com.vn

Key Findings

We analyzed Vietair.com.vn page load time and found that the first response time was 533 ms and then it took 47.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 5 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

vietair.com.vn performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value28.2 s

0/100

10%

TBT (Total Blocking Time)

Value2,270 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

Network Requests Diagram

vietair.com.vn

533 ms

vietair.com.vn

5840 ms

vendor.layout.home.min.FB1F84CBE766B056946D8BD89B39C1F5.css

9284 ms

vendor.layout.home.01.min.C93A2C50D05FC4BB26B84699EC3349A9.css

803 ms

FormCtmAdvicePopup.min.50AFA783C2A19467BA9066FB5367CCBA.css

795 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 77% of them (55 requests) were addressed to the original Vietair.com.vn, 10% (7 requests) were made to Page.widget.zalo.me and 4% (3 requests) were made to Onetour.vn. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Vietair.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.1 kB (36%)

Content Size

564.1 kB

After Optimization

362.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vietair.com.vn main page is 564.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. HTML takes 182.3 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 158.4 kB

  • Original 182.3 kB
  • After minification 133.8 kB
  • After compression 24.0 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. This page needs HTML code to be minified as it can gain 48.5 kB, which is 27% 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 158.4 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 3.9 kB

  • Original 116.8 kB
  • After minification 112.9 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. Vietair images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 35.0 kB

  • Original 155.4 kB
  • After minification 155.0 kB
  • After compression 120.4 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 35.0 kB or 23% of the original size.

CSS Optimization

-4%

Potential reduce by 4.8 kB

  • Original 109.7 kB
  • After minification 109.7 kB
  • After compression 104.8 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. Vietair.com.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (38%)

Requests Now

61

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vietair. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vietair.com.vn accessibility score

85

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

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

vietair.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

SEO Factors

vietair.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 Vietair.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 Vietair.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

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