Tools & Wizards About Us
vulkane.net screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

vulkane.net

Vulkane Net: Magazin über Vulkanausbrüche und Vulkanologie

Page Load Speed

2.9 sec in total

First Response

317 ms

Resources Loaded

2.1 sec

Page Rendered

478 ms

vulkane.net screenshot

About Website

Click here to check amazing Vulkane content for Germany. Otherwise, check out these important facts you probably never knew about vulkane.net

Ein Vulkan ist eine Öffnung in der Erdkruste. Bei einem Vulkanausbruch treten aus ihr Lava und Gase aus! Beides stammt aus der Gesteinsschmelze Magma, die im Erdmantel entsteht.

Visit vulkane.net

Key Findings

We analyzed Vulkane.net page load time and found that the first response time was 317 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

vulkane.net performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

vulkane.net

317 ms

www.vulkane.net

851 ms

format.css

210 ms

9IaXceRUl54

154 ms

adsbygoogle.js

6 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 28% of them (9 requests) were addressed to the original Vulkane.net, 16% (5 requests) were made to Pagead2.googlesyndication.com and 13% (4 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (851 ms) belongs to the original domain Vulkane.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 417.8 kB (52%)

Content Size

798.4 kB

After Optimization

380.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vulkane.net main page is 798.4 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. 40% of websites need less resources to load. Javascripts take 288.5 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 24.3 kB

  • Original 36.3 kB
  • After minification 35.7 kB
  • After compression 12.0 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 24.3 kB or 67% of the original size.

Image Optimization

-18%

Potential reduce by 39.5 kB

  • Original 222.4 kB
  • After minification 182.9 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. Obviously, Vulkane needs image optimization as it can save up to 39.5 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-50%

Potential reduce by 145.2 kB

  • Original 288.5 kB
  • After minification 288.3 kB
  • After compression 143.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 145.2 kB or 50% of the original size.

CSS Optimization

-83%

Potential reduce by 208.7 kB

  • Original 251.2 kB
  • After minification 250.8 kB
  • After compression 42.4 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. Vulkane.net needs all CSS files to be minified and compressed as it can save up to 208.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (37%)

Requests Now

27

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vulkane. 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 as a result speed up the page load time.

Network Requests Diagram

vulkane.net

vulkane.net

317 ms

www.vulkane.net

www.vulkane.net

851 ms

format.css

format.css

210 ms

9IaXceRUl54

9IaXceRUl54

154 ms

adsbygoogle.js

adsbygoogle.js

6 ms

chf-excursion.jpg

chf-excursion.jpg

327 ms

ca-pub-8879124726914309.js

ca-pub-8879124726914309.js

60 ms

zrt_lookup.html

zrt_lookup.html

42 ms

show_ads_impl.js

show_ads_impl.js

55 ms

etna.jpg

etna.jpg

211 ms

www-embed-player-vflZsBgOl.css

www-embed-player-vflZsBgOl.css

127 ms

www-embed-player.js

www-embed-player.js

152 ms

base.js

base.js

226 ms

b790d72afa724a0da02221281a3e7219

b790d72afa724a0da02221281a3e7219

753 ms

fogo-vorschau.jpg

fogo-vorschau.jpg

315 ms

sinabung-vorschau.jpg

sinabung-vorschau.jpg

515 ms

etna-vorschau.jpg

etna-vorschau.jpg

403 ms

klyuchevskoy-vorschau.jpg

klyuchevskoy-vorschau.jpg

320 ms

ads

ads

325 ms

osd.js

osd.js

4 ms

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

22 ms

ad_status.js

ad_status.js

79 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

130 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

130 ms

5171746271700867932

5171746271700867932

34 ms

abg.js

abg.js

37 ms

m_js_controller.js

m_js_controller.js

51 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

82 ms

s

s

22 ms

x_button_blue2.png

x_button_blue2.png

22 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

3 ms

blank.gif

blank.gif

187 ms

Accessibility Review

vulkane.net accessibility score

75

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

<frame> or <iframe> elements do not have a title

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

vulkane.net 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

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

vulkane.net SEO score

81

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

vulkane.net

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