Tools & Wizards About Us
colibri-berlin.de screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

colibri-berlin.de

Ihr Veranstalter für Naturreisen und Tierreisen - Colibri Travel

Page Load Speed

4.7 sec in total

First Response

419 ms

Resources Loaded

3.7 sec

Page Rendered

570 ms

colibri-berlin.de screenshot

About Website

Visit colibri-berlin.de now to see the best up-to-date Colibri Berlin content and also check out these interesting facts you probably never knew about colibri-berlin.de

Gorillas in Uganda, die Big Five in Afrika & Gletscher in der Antarktis: Bei einer Naturreise mit Colibri Travel entdecken Sie die Welt. Jetzt informieren!

Visit colibri-berlin.de

Key Findings

We analyzed Colibri-berlin.de page load time and found that the first response time was 419 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

colibri-berlin.de performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.195

63/100

15%

TTI (Time to Interactive)

Value5.9 s

65/100

10%

Network Requests Diagram

colibri-berlin.de

419 ms

www.colibri-travel.de

775 ms

gtm.js

55 ms

uc.js

24 ms

select2.css

319 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Colibri-berlin.de, 69% (33 requests) were made to Colibri-travel.de and 13% (6 requests) were made to Its-your-trip.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Colibri-travel.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 294.5 kB (14%)

Content Size

2.1 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Colibri-berlin.de main page is 2.1 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. 30% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 105.1 kB

  • Original 119.9 kB
  • After minification 77.6 kB
  • After compression 14.8 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 42.3 kB, which is 35% 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 105.1 kB or 88% of the original size.

Image Optimization

-6%

Potential reduce by 99.8 kB

  • Original 1.7 MB
  • After minification 1.6 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. Colibri Berlin images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 88.8 kB

  • Original 239.7 kB
  • After minification 239.7 kB
  • After compression 150.9 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 88.8 kB or 37% of the original size.

CSS Optimization

-2%

Potential reduce by 721 B

  • Original 30.8 kB
  • After minification 30.8 kB
  • After compression 30.0 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. Colibri-berlin.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (34%)

Requests Now

44

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Colibri Berlin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

colibri-berlin.de

colibri-berlin.de

419 ms

www.colibri-travel.de

www.colibri-travel.de

775 ms

gtm.js

gtm.js

55 ms

uc.js

uc.js

24 ms

select2.css

select2.css

319 ms

jquery.js

jquery.js

432 ms

bootstrap.min.css

bootstrap.min.css

431 ms

style.css

style.css

321 ms

flexslider.css

flexslider.css

320 ms

reisefinder.css

reisefinder.css

454 ms

font_caveat.css

font_caveat.css

640 ms

jquery.min.js

jquery.min.js

749 ms

bootstrap.min.js

bootstrap.min.js

650 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

748 ms

webforms.min.js

webforms.min.js

149 ms

select2.js

select2.js

675 ms

universal.js

universal.js

63 ms

startSlider_1599584953_66cfdd200eed3375311f0d5d10ea1439.jpg

startSlider_1599584953_66cfdd200eed3375311f0d5d10ea1439.jpg

793 ms

j0o9u0

j0o9u0

163 ms

startSlider_1599585683_b449cbfd480272edac357f75049a6752.jpg

startSlider_1599585683_b449cbfd480272edac357f75049a6752.jpg

793 ms

startSlider_1599585169_785d198d79d192693061507da8c89a77.PNG

startSlider_1599585169_785d198d79d192693061507da8c89a77.PNG

1223 ms

200_1598436586_1aabd529c04cbc22d9a976bdb49f6610.jpg

200_1598436586_1aabd529c04cbc22d9a976bdb49f6610.jpg

591 ms

200_1599048109_a60e946669e076866f5a0d2d1aee7c15.JPG

200_1599048109_a60e946669e076866f5a0d2d1aee7c15.JPG

590 ms

200_1598450560_333b3b6ad19affce150f8491a716473e.jpg

200_1598450560_333b3b6ad19affce150f8491a716473e.jpg

601 ms

logo.png

logo.png

328 ms

menu-icon.png

menu-icon.png

509 ms

tierreisen.jpg

tierreisen.jpg

643 ms

nordlichter.jpg

nordlichter.jpg

723 ms

naturreisen.jpg

naturreisen.jpg

726 ms

wale_and_delfine.jpg

wale_and_delfine.jpg

742 ms

abenteuer.jpg

abenteuer.jpg

744 ms

polarreisen.jpg

polarreisen.jpg

952 ms

wildnisreisen.jpg

wildnisreisen.jpg

1068 ms

vogelreisen.jpg

vogelreisen.jpg

1147 ms

big_five.jpg

big_five.jpg

1150 ms

map.png

map.png

1482 ms

IYT_Bestpreis_60-white.png

IYT_Bestpreis_60-white.png

1061 ms

IYT_Notfallservice_60-white.png

IYT_Notfallservice_60-white.png

1271 ms

IYT_Sicherheitspaket_60-white.png

IYT_Sicherheitspaket_60-white.png

1379 ms

facebook_icon.png

facebook_icon.png

1386 ms

trip_logo.png

trip_logo.png

1465 ms

universal.css

universal.css

62 ms

n2m9m6v0b8_popups.js

n2m9m6v0b8_popups.js

180 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1249 ms

first_page_img_1.jpg

first_page_img_1.jpg

1710 ms

ml_jQuery.inputmask.bundle.min.js

ml_jQuery.inputmask.bundle.min.js

72 ms

first_page_img_2.jpg

first_page_img_2.jpg

1665 ms

textbg.png

textbg.png

109 ms

Accessibility Review

colibri-berlin.de accessibility score

72

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

[id] attributes on active, focusable elements are not unique

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

colibri-berlin.de 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

colibri-berlin.de SEO score

79

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Colibri-berlin.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Colibri-berlin.de 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

colibri-berlin.de

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