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jetstar.com screenshot

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

jetstar.com

Cheap Flights | Jetstar

Page Load Speed

1.1 sec in total

First Response

28 ms

Resources Loaded

897 ms

Page Rendered

138 ms

jetstar.com screenshot

About Website

Welcome to jetstar.com homepage info - get ready to check Jetstar best content for Australia right away, or after learning these important things about jetstar.com

Famous low airfares. Great destinations. Discover our domestic and international network across Australia, New Zealand, Asia and the Pacific.

Visit jetstar.com

Key Findings

We analyzed Jetstar.com page load time and found that the first response time was 28 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jetstar.com performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.1 s

0/100

25%

SI (Speed Index)

Value13.1 s

2/100

10%

TBT (Total Blocking Time)

Value12,570 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.384

27/100

15%

TTI (Time to Interactive)

Value27.3 s

0/100

10%

Network Requests Diagram

jetstar.com

28 ms

home

178 ms

RG7NX-RHWXS-XQGXN-58N42-8VLMA

10 ms

getflightschedules

19 ms

plugins.js

49 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 55% of them (23 requests) were addressed to the original Jetstar.com, 10% (4 requests) were made to Media1.jetstar.com and 10% (4 requests) were made to Media2.jetstar.com. The less responsive or slowest element that took the longest time to load (195 ms) relates to the external source C.supert.ag.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (53%)

Content Size

2.9 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jetstar.com main page is 2.9 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. 50% of websites need less resources to load. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 156.5 kB

  • Original 197.5 kB
  • After minification 183.8 kB
  • After compression 41.0 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. 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 156.5 kB or 79% of the original size.

Image Optimization

-13%

Potential reduce by 112.3 kB

  • Original 833.5 kB
  • After minification 721.2 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. Obviously, Jetstar needs image optimization as it can save up to 112.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 805.9 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 380.8 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 805.9 kB or 68% of the original size.

CSS Optimization

-66%

Potential reduce by 450.7 kB

  • Original 678.6 kB
  • After minification 678.4 kB
  • After compression 227.9 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. Jetstar.com needs all CSS files to be minified and compressed as it can save up to 450.7 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (53%)

Requests Now

40

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jetstar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jetstar.com

jetstar.com

28 ms

home

home

178 ms

RG7NX-RHWXS-XQGXN-58N42-8VLMA

RG7NX-RHWXS-XQGXN-58N42-8VLMA

10 ms

getflightschedules

getflightschedules

19 ms

plugins.js

plugins.js

49 ms

supertag.js

supertag.js

195 ms

jetstar-logo-white_svg.svg

jetstar-logo-white_svg.svg

13 ms

_blank.gif

_blank.gif

15 ms

manage_bookings_svg.svg

manage_bookings_svg.svg

14 ms

flight_status_svg.svg

flight_status_svg.svg

11 ms

star_grey_svg_2.svg

star_grey_svg_2.svg

12 ms

787_1.jpg

787_1.jpg

18 ms

config.js

config.js

144 ms

Main.js

Main.js

23 ms

jquery.xdomainrequest.js

jquery.xdomainrequest.js

55 ms

picturefill.js

picturefill.js

20 ms

moment.js

moment.js

16 ms

en-us.js

en-us.js

89 ms

GetShortLabelsFromMultipleDomains

GetShortLabelsFromMultipleDomains

25 ms

enquire.js

enquire.js

35 ms

fastclick.js

fastclick.js

21 ms

svg-injector.js

svg-injector.js

7 ms

spin.js

spin.js

77 ms

handlebars.runtime.js

handlebars.runtime.js

10 ms

supertag-code-v93.js

supertag-code-v93.js

169 ms

analytics.js

analytics.js

69 ms

flights_svg.svg

flights_svg.svg

36 ms

hotels_svg.svg

hotels_svg.svg

30 ms

cars_svg.svg

cars_svg.svg

34 ms

manage_bookings_svg.svg

manage_bookings_svg.svg

31 ms

flight_status_svg.svg

flight_status_svg.svg

31 ms

star_grey_svg_2.svg

star_grey_svg_2.svg

31 ms

travelalertsservice

travelalertsservice

26 ms

adServer.bs

adServer.bs

100 ms

ebOneTag.js

ebOneTag.js

56 ms

787_1.jpg

787_1.jpg

39 ms

singapore-skyline.jpg

singapore-skyline.jpg

28 ms

en-us-main.css

en-us-main.css

74 ms

Serving

Serving

33 ms

icons-sprite-medium.png

icons-sprite-medium.png

25 ms

icons-sprite.svg

icons-sprite.svg

10 ms

en-us-data-woff.css

en-us-data-woff.css

40 ms

Accessibility Review

jetstar.com accessibility score

88

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

High

Some elements have a [tabindex] value greater than 0

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

Best Practices

jetstar.com 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

High

Missing source maps for large first-party JavaScript

SEO Factors

jetstar.com SEO score

85

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

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jetstar.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Jetstar.com main page’s claimed encoding is . 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

jetstar.com

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