Tools & Wizards About Us
cologne-tourism.com screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

cologne-tourism.com

Discover the Rhine metropolis Cologne | Cologne Tourist Board

Page Load Speed

7 sec in total

First Response

1.7 sec

Resources Loaded

5 sec

Page Rendered

262 ms

cologne-tourism.com screenshot

About Website

Visit cologne-tourism.com now to see the best up-to-date Cologne Tourism content for United Kingdom and also check out these interesting facts you probably never knew about cologne-tourism.com

Cologne Tourist Board - the official tourism organisation of the city of Cologne. Experiences & Events ✓ Sights, Museums & Culture ✓

Visit cologne-tourism.com

Key Findings

We analyzed Cologne-tourism.com page load time and found that the first response time was 1.7 sec and then it took 5.3 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

cologne-tourism.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

www.cologne-tourism.com

1698 ms

stylesheet_3866278f17.css

197 ms

stylesheet_20fc4ba620.css

200 ms

style.css

202 ms

tx_jfmulticontent_pi1.css

204 ms

Our browser made a total of 141 requests to load all elements on the main page. We found that 69% of them (97 requests) were addressed to the original Cologne-tourism.com, 8% (11 requests) were made to F1-eu.readspeaker.com and 5% (7 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Cologne-tourism.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (44%)

Content Size

3.0 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cologne-tourism.com main page is 3.0 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. 70% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 115.6 kB

  • Original 144.8 kB
  • After minification 142.9 kB
  • After compression 29.2 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. 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 115.6 kB or 80% of the original size.

Image Optimization

-13%

Potential reduce by 185.5 kB

  • Original 1.5 MB
  • After minification 1.3 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. Obviously, Cologne Tourism needs image optimization as it can save up to 185.5 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

-72%

Potential reduce by 934.6 kB

  • Original 1.3 MB
  • After minification 1.2 MB
  • After compression 367.6 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 934.6 kB or 72% of the original size.

CSS Optimization

-81%

Potential reduce by 97.6 kB

  • Original 120.5 kB
  • After minification 94.3 kB
  • After compression 22.9 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. Cologne-tourism.com needs all CSS files to be minified and compressed as it can save up to 97.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 85 (62%)

Requests Now

138

After Optimization

53

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cologne Tourism. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 55 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cologne-tourism.com

www.cologne-tourism.com

1698 ms

stylesheet_3866278f17.css

stylesheet_3866278f17.css

197 ms

stylesheet_20fc4ba620.css

stylesheet_20fc4ba620.css

200 ms

style.css

style.css

202 ms

tx_jfmulticontent_pi1.css

tx_jfmulticontent_pi1.css

204 ms

stylesheet_5222e860f1.css

stylesheet_5222e860f1.css

205 ms

icextaddress.css

icextaddress.css

208 ms

svwp_style.css

svwp_style.css

293 ms

boilerplate.css

boilerplate.css

296 ms

main.css

main.css

299 ms

anythingslider.css

anythingslider.css

296 ms

tagcloud.css

tagcloud.css

302 ms

rgaccordion2.css

rgaccordion2.css

302 ms

rggm.css

rggm.css

390 ms

shadowbox.css

shadowbox.css

392 ms

nivo-slider.css

nivo-slider.css

394 ms

koeln.css

koeln.css

397 ms

divascookies_style_light_bottom.css

divascookies_style_light_bottom.css

396 ms

doubleclick.css

doubleclick.css

397 ms

readspeaker.css

readspeaker.css

488 ms

mootools-core-1.4.5-full-compat-yc.js

mootools-core-1.4.5-full-compat-yc.js

595 ms

mootools-1.2.5.1-more.js

mootools-1.2.5.1-more.js

616 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

698 ms

jquery-ui-1.9.2.custom.min.js

jquery-ui-1.9.2.custom.min.js

740 ms

jquery.ui.datepicker-de.js

jquery.ui.datepicker-de.js

497 ms

top.js

top.js

587 ms

calendar.js

calendar.js

636 ms

calendarHTML.js

calendarHTML.js

688 ms

vacation.js

vacation.js

694 ms

tagmanager.js

tagmanager.js

694 ms

calendarText_default.js

calendarText_default.js

695 ms

jquery.slideViewerPro.1.0.js

jquery.slideViewerPro.1.0.js

793 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

794 ms

js

js

42 ms

jquery.easing-1.3.js

jquery.easing-1.3.js

811 ms

jquery.anythingslider-1.8.6.js

jquery.anythingslider-1.8.6.js

814 ms

javascript_c616b8b84b.js

javascript_c616b8b84b.js

811 ms

ReadSpeaker.js

ReadSpeaker.js

137 ms

markerclusterer.js

markerclusterer.js

788 ms

infobox.js

infobox.js

705 ms

google.js

google.js

707 ms

jquery.treeview.js

jquery.treeview.js

701 ms

main.js

main.js

701 ms

newsletter.js

newsletter.js

707 ms

hrs.js

hrs.js

763 ms

jquery.hoverIntent.js

jquery.hoverIntent.js

725 ms

jquery.menuajax.js

jquery.menuajax.js

717 ms

shadowbox.js

shadowbox.js

816 ms

jquery.nivo.slider.js

jquery.nivo.slider.js

711 ms

jquery.divascookies-0.6.min.js

jquery.divascookies-0.6.min.js

714 ms

body-wrapper.jpg

body-wrapper.jpg

581 ms

gpt.js

gpt.js

8 ms

pubads_impl_81.js

pubads_impl_81.js

5 ms

container.html

container.html

25 ms

pin_it_button.png

pin_it_button.png

22 ms

body.jpg

body.jpg

905 ms

logo.gif

logo.gif

843 ms

flag-de.jpg

flag-de.jpg

322 ms

flag-en.png

flag-en.png

321 ms

csm_Rheinauhafen_Yachthafen__c_Jens-Korte-KoelnTourismus-GmbH_8298425b6f.jpg

csm_Rheinauhafen_Yachthafen__c_Jens-Korte-KoelnTourismus-GmbH_8298425b6f.jpg

802 ms

csm_Altstadt_Rheinufer-_c_Jens-Korte-KoelnTourismus-GmbH_15_a519e64c9d.jpg

csm_Altstadt_Rheinufer-_c_Jens-Korte-KoelnTourismus-GmbH_15_a519e64c9d.jpg

743 ms

csm_Frueh_Em_Golde__c__Coelner_Hofbraeu_Frueh_27_c613312109.jpg

csm_Frueh_Em_Golde__c__Coelner_Hofbraeu_Frueh_27_c613312109.jpg

718 ms

csm_Alter-Markt-_c_Jens-Korte-KoelnTourismus-GmbH_03_4bd2963d04.jpg

csm_Alter-Markt-_c_Jens-Korte-KoelnTourismus-GmbH_03_4bd2963d04.jpg

808 ms

csm_Dom-Nacht__c__KoelnTourismus_GmbH_06_96f7864a07.jpg

csm_Dom-Nacht__c__KoelnTourismus_GmbH_06_96f7864a07.jpg

1015 ms

csm_RheinEnergieMarathon-Koeln_DE_46250f3410.gif

csm_RheinEnergieMarathon-Koeln_DE_46250f3410.gif

1041 ms

25cd1562fe.jpg

25cd1562fe.jpg

902 ms

8a49ab3643.jpg

8a49ab3643.jpg

908 ms

b432224420.jpg

b432224420.jpg

942 ms

78bb7625fb.jpg

78bb7625fb.jpg

1000 ms

428e99d70f.jpg

428e99d70f.jpg

1002 ms

41df98926b.jpg

41df98926b.jpg

1008 ms

e8af5e6f82.jpg

e8af5e6f82.jpg

1042 ms

96ad66c037.jpg

96ad66c037.jpg

1100 ms

f3f16d3fcc.jpg

f3f16d3fcc.jpg

1102 ms

gtm.js

gtm.js

74 ms

Kommunikationsmuster-s.png

Kommunikationsmuster-s.png

414 ms

kommunikationsmuster-m.png

kommunikationsmuster-m.png

409 ms

der_koelnshop_bew.gif

der_koelnshop_bew.gif

1784 ms

beafb34c85.jpg

beafb34c85.jpg

1100 ms

f47757faba.jpg

f47757faba.jpg

1125 ms

KoelnCard.JPG

KoelnCard.JPG

1232 ms

plusone.js

plusone.js

114 ms

widgets.js

widgets.js

19 ms

like.php

like.php

169 ms

Oper_Jeanne-d-Arc_Rectangle.jpg

Oper_Jeanne-d-Arc_Rectangle.jpg

1124 ms

analytics.js

analytics.js

35 ms

a52853cdb4.jpg

a52853cdb4.jpg

1107 ms

bd10347c29.jpg

bd10347c29.jpg

1115 ms

pinit.js

pinit.js

38 ms

a649616195.jpg

a649616195.jpg

1145 ms

7f9a58c729.jpg

7f9a58c729.jpg

1194 ms

30b7ab9f76.jpg

30b7ab9f76.jpg

1192 ms

collect

collect

25 ms

collect

collect

99 ms

collect

collect

21 ms

collect

collect

103 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

23 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

53 ms

fastbutton

fastbutton

100 ms

pinit_main.js

pinit_main.js

50 ms

a2da627dc4.jpg

a2da627dc4.jpg

1150 ms

4117a1f0c6.jpg

4117a1f0c6.jpg

1140 ms

5b39f41309.jpg

5b39f41309.jpg

1141 ms

logos.png

logos.png

1186 ms

Likebox_de_new_en.png

Likebox_de_new_en.png

1187 ms

postmessageRelay

postmessageRelay

66 ms

vpc6VNjRPXV.js

vpc6VNjRPXV.js

318 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

353 ms

ga-audiences

ga-audiences

74 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

30 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

24 ms

_Frueh_Em_Golde__c__Coelner_Hofbraeu_Frueh.jpg

_Frueh_Em_Golde__c__Coelner_Hofbraeu_Frueh.jpg

1337 ms

api.js

api.js

33 ms

core:rpc:shindig.random:shindig.sha1.js

core:rpc:shindig.random:shindig.sha1.js

144 ms

2536007149-postmessagerelay.js

2536007149-postmessagerelay.js

134 ms

ReadSpeaker.Styles.css

ReadSpeaker.Styles.css

9 ms

ReadSpeaker.Core.js

ReadSpeaker.Core.js

93 ms

ReadSpeaker.pub.Config.js

ReadSpeaker.pub.Config.js

92 ms

DB10335_DB_AG_Urheber_Max_Lautenschlaeger.jpg

DB10335_DB_AG_Urheber_Max_Lautenschlaeger.jpg

1232 ms

Stadtplan.jpg

Stadtplan.jpg

1133 ms

tabicon.png

tabicon.png

1179 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

52 ms

ReadSpeaker.lib.Facade.adapter.jquery.js

ReadSpeaker.lib.Facade.adapter.jquery.js

17 ms

ReadSpeaker.Common.Settings.js

ReadSpeaker.Common.Settings.js

23 ms

ReadSpeaker.PlayerAPI.js

ReadSpeaker.PlayerAPI.js

23 ms

ReadSpeaker.HL.js

ReadSpeaker.HL.js

23 ms

ReadSpeaker.ui.js

ReadSpeaker.ui.js

23 ms

ReadSpeaker.enlargeHL.js

ReadSpeaker.enlargeHL.js

27 ms

ReadSpeaker.enlargeHL.css

ReadSpeaker.enlargeHL.css

21 ms

tweet_button.6a78875565a912489e9aef879c881358.de.html

tweet_button.6a78875565a912489e9aef879c881358.de.html

24 ms

jot

jot

89 ms

loading.gif

loading.gif

784 ms

basic1-117.png

basic1-117.png

810 ms

icon-more.png

icon-more.png

797 ms

icon-print.png

icon-print.png

792 ms

icon-rss.png

icon-rss.png

809 ms

loading.gif

loading.gif

751 ms

www.cologne-tourism.com

www.cologne-tourism.com

1201 ms

arrows.png

arrows.png

792 ms

arrow-left.png

arrow-left.png

769 ms

arrow-right.png

arrow-right.png

747 ms

Accessibility Review

cologne-tourism.com accessibility score

87

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

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

cologne-tourism.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

cologne-tourism.com SEO score

93

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cologne-tourism.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 Cologne-tourism.com 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

cologne-tourism.com

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