Tools & Wizards About Us
marvinius.net screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

marvinius.net

René Bartsch

Page Load Speed

2.3 sec in total

First Response

235 ms

Resources Loaded

1.5 sec

Page Rendered

470 ms

marvinius.net screenshot

About Website

Visit marvinius.net now to see the best up-to-date Marvinius content and also check out these interesting facts you probably never knew about marvinius.net

Visit marvinius.net

Key Findings

We analyzed Marvinius.net page load time and found that the first response time was 235 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

marvinius.net performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

marvinius.net

235 ms

math

257 ms

244 ms

back01.gif

106 ms

pbk22a8.jpg

811 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 9% of them (1 request) were addressed to the original Marvinius.net, 91% (10 requests) were made to Marvinius.de. The less responsive or slowest element that took the longest time to load (811 ms) relates to the external source Marvinius.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.5 kB (6%)

Content Size

321.8 kB

After Optimization

302.3 kB

  • HTML
  • Images

In fact, the total size of Marvinius.net main page is 321.8 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. Only 10% of websites need less resources to load. Images take 302.4 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.6 kB

  • Original 19.4 kB
  • After minification 18.5 kB
  • After compression 4.8 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. 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 14.6 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 4.9 kB

  • Original 302.4 kB
  • After minification 297.5 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. Marvinius images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Marvinius. According to our analytics all requests are already optimized.

Network Requests Diagram

marvinius.net

marvinius.net

235 ms

math

math

257 ms

244 ms

back01.gif

back01.gif

106 ms

pbk22a8.jpg

pbk22a8.jpg

811 ms

mathemail_avh.gif

mathemail_avh.gif

210 ms

mathemail.gif

mathemail.gif

215 ms

latex1.png

latex1.png

210 ms

kaeferbuch2015a.jpg

kaeferbuch2015a.jpg

385 ms

allgtop1_titel.jpg

allgtop1_titel.jpg

215 ms

treebutton.gif

treebutton.gif

322 ms

Accessibility Review

marvinius.net accessibility score

59

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

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

marvinius.net best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

marvinius.net SEO score

58

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Marvinius.net can be misinterpreted by Google and other search engines. Our service has detected that German 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 Marvinius.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

marvinius.net

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