Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

unterwasser.de

Tauchsport, Tauchausrüstung, Tauchreisen - TAUCHEN.de

Page Load Speed

9.6 sec in total

First Response

353 ms

Resources Loaded

5.8 sec

Page Rendered

3.5 sec

unterwasser.de screenshot

About Website

Visit unterwasser.de now to see the best up-to-date Unterwasser content for Germany and also check out these interesting facts you probably never knew about unterwasser.de

Europas große Tauchzeitschrift erscheint monatlich und informiert über Tauchreiseziele, Tauchausrüstung, Meeresbiologie und UW-Fotografie.

Visit unterwasser.de

Key Findings

We analyzed Unterwasser.de page load time and found that the first response time was 353 ms and then it took 9.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

unterwasser.de performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value7,620 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value31.1 s

0/100

10%

Network Requests Diagram

unterwasser.de

353 ms

www.tauchen.de

674 ms

style.css

313 ms

sb-youtube.min.css

309 ms

sbi-styles.min.css

306 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Unterwasser.de, 92% (61 requests) were made to Tauchen.de and 3% (2 requests) were made to Cdntrf.com. The less responsive or slowest element that took the longest time to load (3.3 sec) relates to the external source Tauchen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 182.7 kB (8%)

Content Size

2.4 MB

After Optimization

2.2 MB

In fact, the total size of Unterwasser.de main page is 2.4 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. 45% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 182.6 kB

  • Original 222.3 kB
  • After minification 205.9 kB
  • After compression 39.7 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 182.6 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 4 B

  • Original 2.0 MB
  • After minification 2.0 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. Unterwasser images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 5 B

  • Original 94.0 kB
  • After minification 94.0 kB
  • After compression 94.0 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.

CSS Optimization

-14%

Potential reduce by 57 B

  • Original 407 B
  • After minification 407 B
  • After compression 350 B

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. Unterwasser.de needs all CSS files to be minified and compressed as it can save up to 57 B or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (46%)

Requests Now

63

After Optimization

34

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Unterwasser. 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 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

unterwasser.de accessibility score

91

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

unterwasser.de best practices score

75

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

Page has valid source maps

SEO Factors

unterwasser.de SEO score

100

Search Engine Optimization Advices

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Unterwasser.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 Unterwasser.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

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