Tools & Wizards About Us
thomascook.co.uk screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% 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

thomascook.co.uk

Package Holidays and City Breaks | Thomas Cook

Page Load Speed

5.7 sec in total

First Response

33 ms

Resources Loaded

3.5 sec

Page Rendered

2.2 sec

thomascook.co.uk screenshot

About Website

Click here to check amazing Thomas Cook content. Otherwise, check out these important facts you probably never knew about thomascook.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 thomascook.co.uk

Key Findings

We analyzed Thomascook.co.uk page load time and found that the first response time was 33 ms and then it took 5.7 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

thomascook.co.uk performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

3/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

www.thomascook.com

33 ms

www.thomascook.com

336 ms

gtm.js

168 ms

tp.min.js

601 ms

tp.widget.bootstrap.min.js

593 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Thomascook.co.uk, 4% (3 requests) were made to Google-analytics.com and 4% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Thomascook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 276.4 kB (39%)

Content Size

707.0 kB

After Optimization

430.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Thomascook.co.uk main page is 707.0 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. 70% of websites need less resources to load. Images take 386.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 258.3 kB

  • Original 291.7 kB
  • After minification 223.1 kB
  • After compression 33.4 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 68.6 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 258.3 kB or 89% of the original size.

Image Optimization

-5%

Potential reduce by 18.1 kB

  • Original 386.9 kB
  • After minification 368.8 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. 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

75

After Optimization

64

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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.

Network Requests Diagram

www.thomascook.com

www.thomascook.com

33 ms

www.thomascook.com

www.thomascook.com

336 ms

gtm.js

gtm.js

168 ms

tp.min.js

tp.min.js

601 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

593 ms

elastic-apm-opentracing.umd.min.js

elastic-apm-opentracing.umd.min.js

333 ms

main.1362ade8.css

main.1362ade8.css

334 ms

logo-mobile@1x.png

logo-mobile@1x.png

81 ms

TIME_LOCATION_CALENDAR.svg

TIME_LOCATION_CALENDAR.svg

752 ms

USER_INTERFACE_HEART_LOVE_OUTLINE.svg

USER_INTERFACE_HEART_LOVE_OUTLINE.svg

717 ms

call.svg

call.svg

749 ms

email.svg

email.svg

518 ms

nwatol.svg

nwatol.svg

784 ms

nw-abta.svg

nw-abta.svg

785 ms

nw-scecur2.svg

nw-scecur2.svg

778 ms

jcr:content.png

jcr:content.png

847 ms

app.f65f8a36.js

app.f65f8a36.js

837 ms

searchBar-en-gb.5deff4ec.js

searchBar-en-gb.5deff4ec.js

778 ms

i.gif

i.gif

716 ms

UK_TC_Madeira_Native_LOGO.png

UK_TC_Madeira_Native_LOGO.png

780 ms

299908a70c454977877b2e7dd1ebef77.jpg

299908a70c454977877b2e7dd1ebef77.jpg

414 ms

UK_TC_Madeira_Native.jpg

UK_TC_Madeira_Native.jpg

985 ms

mul.svg

mul.svg

363 ms

flex.svg

flex.svg

355 ms

Main%20chat2.svg

Main%20chat2.svg

352 ms

price-match2.svg

price-match2.svg

349 ms

lanzarote1127748611.JPG

lanzarote1127748611.JPG

693 ms

Egypt.jpg

Egypt.jpg

525 ms

mexico-hero1.jpg

mexico-hero1.jpg

609 ms

Malta.jpg

Malta.jpg

610 ms

cypruscarousel%20(1).jpg

cypruscarousel%20(1).jpg

661 ms

usa-hero1.jpg

usa-hero1.jpg

646 ms

punta-cana-portrait.jpg

punta-cana-portrait.jpg

693 ms

dubai-mobile.jpg

dubai-mobile.jpg

806 ms

Turkey.jpg

Turkey.jpg

815 ms

tenerife2.jpg

tenerife2.jpg

765 ms

tanja-cotoaga-SAZZ_H1RZGE-unsplash%20(1).jpg

tanja-cotoaga-SAZZ_H1RZGE-unsplash%20(1).jpg

827 ms

casa-cook.svg

casa-cook.svg

1206 ms

cooks-club.svg

cooks-club.svg

920 ms

club-med.svg

club-med.svg

956 ms

rome-mobile.jpg

rome-mobile.jpg

1040 ms

amsterdam-mobile.jpg

amsterdam-mobile.jpg

1000 ms

budapest-mobile.jpg

budapest-mobile.jpg

1040 ms

krakow-mobile.jpg

krakow-mobile.jpg

1203 ms

venice-mobile.jpg

venice-mobile.jpg

1152 ms

berlin-mobile.jpg

berlin-mobile.jpg

1383 ms

paris-mobile.jpg

paris-mobile.jpg

1385 ms

prague-mobile.jpg

prague-mobile.jpg

1385 ms

dublin-mobile.jpg

dublin-mobile.jpg

1164 ms

jcr:content.png

jcr:content.png

1705 ms

AppStore.svg

AppStore.svg

1151 ms

google-play-badge.png

google-play-badge.png

1171 ms

jcr:content.png

jcr:content.png

1125 ms

fb.svg

fb.svg

1166 ms

twit.svg

twit.svg

1271 ms

insta.svg

insta.svg

1266 ms

upt.svg

upt.svg

1255 ms

atol%20(2).svg

atol%20(2).svg

1252 ms

abta%20(1).svg

abta%20(1).svg

1292 ms

travelaware.svg

travelaware.svg

1422 ms

analytics.js

analytics.js

120 ms

activityi;src=10305155;type=count20;cat=000un0;ord=9497235316248;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=https%3A%2F%2Fwww.thomascook.com%2F;~oref=https%3A%2F%2Fwww.thomascook.com%2F

activityi;src=10305155;type=count20;cat=000un0;ord=9497235316248;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=https%3A%2F%2Fwww.thomascook.com%2F;~oref=https%3A%2F%2Fwww.thomascook.com%2F

193 ms

activityi;src=10305155;type=count20;cat=001ho0;ord=1;num=8447766101873;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;~oref=https%3A%2F%2Fwww.thomascook.com%2F

activityi;src=10305155;type=count20;cat=001ho0;ord=1;num=8447766101873;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;~oref=https%3A%2F%2Fwww.thomascook.com%2F

208 ms

activityi;src=10387506;type=retarget;cat=homep0;ord=3240052461251;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=Homepage;~oref=https%3A%2F%2Fwww.thomascook.com%2F

activityi;src=10387506;type=retarget;cat=homep0;ord=3240052461251;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=Homepage;~oref=https%3A%2F%2Fwww.thomascook.com%2F

212 ms

collect

collect

30 ms

collect

collect

73 ms

src=10305155;type=count20;cat=000un0;ord=9497235316248;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=https%3A%2F%2Fwww.thomascook.com%2F;~oref=https%3A%2F%2Fwww.thomascook.com%2F

src=10305155;type=count20;cat=000un0;ord=9497235316248;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=https%3A%2F%2Fwww.thomascook.com%2F;~oref=https%3A%2F%2Fwww.thomascook.com%2F

124 ms

src=10305155;type=count20;cat=001ho0;ord=1;num=8447766101873;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;~oref=https%3A%2F%2Fwww.thomascook.com%2F

src=10305155;type=count20;cat=001ho0;ord=1;num=8447766101873;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;~oref=https%3A%2F%2Fwww.thomascook.com%2F

124 ms

src=10387506;type=retarget;cat=homep0;ord=3240052461251;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=Homepage;~oref=https%3A%2F%2Fwww.thomascook.com%2F

src=10387506;type=retarget;cat=homep0;ord=3240052461251;gtm=2wg9q0;gcs=G111;auiddc=1077161822.1664282351;u1=Homepage;~oref=https%3A%2F%2Fwww.thomascook.com%2F

129 ms

ga-audiences

ga-audiences

83 ms

hotjar-1957756.js

hotjar-1957756.js

169 ms

collect

collect

63 ms

fbevents.js

fbevents.js

40 ms

identity.js

identity.js

20 ms

975334899602391

975334899602391

51 ms

modules.2be88a2123e5e486752f.js

modules.2be88a2123e5e486752f.js

115 ms

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

112 ms

Accessibility Review

thomascook.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

thomascook.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

thomascook.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 Thomascook.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 Thomascook.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

thomascook.co.uk

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