Tools & Wizards About Us
bluedanube.sk screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

bluedanube.sk

Programs for tourists, tours of Bratislava, cruises on the Danube

Page Load Speed

5.1 sec in total

First Response

250 ms

Resources Loaded

4.1 sec

Page Rendered

739 ms

bluedanube.sk screenshot

About Website

Visit bluedanube.sk now to see the best up-to-date Blue Danube content for Slovakia and also check out these interesting facts you probably never knew about bluedanube.sk

Apart from traditional city tours, we offer trips around Slovakia, wine, beer and chocolate tasting, rides on Bratislava City Train, and Danube cruises.

Visit bluedanube.sk

Key Findings

We analyzed Bluedanube.sk page load time and found that the first response time was 250 ms and then it took 4.8 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

bluedanube.sk performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value3,090 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.7

7/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

bluedanube.sk

250 ms

757 ms

83pci.css

245 ms

83pci.css

325 ms

83pci.css

327 ms

Our browser made a total of 138 requests to load all elements on the main page. We found that 58% of them (80 requests) were addressed to the original Bluedanube.sk, 39% (54 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Bluedanube.sk.

Page Optimization Overview & Recommendations

Page size can be reduced by 446.2 kB (11%)

Content Size

4.2 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bluedanube.sk main page is 4.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 213.3 kB

  • Original 250.5 kB
  • After minification 249.7 kB
  • After compression 37.2 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 213.3 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 17.8 kB

  • Original 3.3 MB
  • After minification 3.3 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. Blue Danube images are well optimized though.

JavaScript Optimization

-33%

Potential reduce by 206.6 kB

  • Original 618.6 kB
  • After minification 618.6 kB
  • After compression 412.1 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 206.6 kB or 33% of the original size.

CSS Optimization

-28%

Potential reduce by 8.5 kB

  • Original 30.0 kB
  • After minification 21.8 kB
  • After compression 21.5 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. Bluedanube.sk needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (38%)

Requests Now

78

After Optimization

48

  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blue Danube. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bluedanube.sk

bluedanube.sk

250 ms

757 ms

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83pci.css

245 ms

83pci.css

83pci.css

325 ms

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327 ms

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234 ms

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247 ms

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327 ms

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330 ms

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329 ms

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483 ms

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jquery-migrate.min.js

347 ms

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slick.min.js

373 ms

custom.js

custom.js

437 ms

js

js

62 ms

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zebra_tooltips.js

414 ms

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413 ms

i18n.min.js

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440 ms

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494 ms

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600 ms

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670 ms

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774 ms

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600 ms

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601 ms

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602 ms

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662 ms

common.js

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34 ms

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wp-polyfill.min.js

764 ms

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763 ms

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130 ms

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296 ms

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573 ms

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Accessibility Review

bluedanube.sk accessibility score

89

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

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

bluedanube.sk best practices score

83

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

Browser errors were logged to the console

SEO Factors

bluedanube.sk SEO score

82

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

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 Bluedanube.sk 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 Bluedanube.sk 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

bluedanube.sk

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