Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

flythomascook.co.uk

Package Holidays and City Breaks | Thomas Cook

Page Load Speed

5.8 sec in total

First Response

308 ms

Resources Loaded

4.4 sec

Page Rendered

1.1 sec

flythomascook.co.uk screenshot

About Website

Visit flythomascook.co.uk now to see the best up-to-date Fly Thomas Cook content and also check out these interesting facts you probably never knew about flythomascook.co.uk

Book your next holiday at Thomas Cook – cheap deals with deposits from £39pp. ATOL protection. Cheap holidays to Spain, Turkey, Greece, Long Haul and more

Visit flythomascook.co.uk

Key Findings

We analyzed Flythomascook.co.uk page load time and found that the first response time was 308 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

flythomascook.co.uk performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.102

89/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

www.thomascookairlines.com

308 ms

www.thomascook.com

375 ms

gtm.js

146 ms

elastic-apm-opentracing.umd.min.js

406 ms

tp.min.js

33 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Flythomascook.co.uk, 4% (3 requests) were made to Google-analytics.com and 4% (3 requests) were made to Adservice.google.com. The less responsive or slowest element that took the longest time to load (3 sec) relates to the external source Thomascook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 255.9 kB (73%)

Content Size

351.6 kB

After Optimization

95.7 kB

In fact, the total size of Flythomascook.co.uk main page is 351.6 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. 55% of websites need less resources to load. HTML takes 287.7 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 255.6 kB

  • Original 287.7 kB
  • After minification 219.4 kB
  • After compression 32.2 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 68.4 kB, which is 24% 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 255.6 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 294 B

  • Original 35.5 kB
  • After minification 35.2 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. Fly Thomas Cook images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 62 B

  • Original 28.3 kB
  • After minification 28.3 kB
  • After compression 28.3 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.

Requests Breakdown

Number of requests can be reduced by 11 (15%)

Requests Now

71

After Optimization

60

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Fly Thomas Cook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

flythomascook.co.uk accessibility score

91

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.

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

flythomascook.co.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

flythomascook.co.uk SEO score

86

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Flythomascook.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Flythomascook.co.uk 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 Fly Thomas Cook. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: