Tools & Wizards About Us
mathematikum.de screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

mathematikum.de

Mathematikum Gießen - Startseite

Page Load Speed

2.8 sec in total

First Response

303 ms

Resources Loaded

2.2 sec

Page Rendered

270 ms

mathematikum.de screenshot

About Website

Welcome to mathematikum.de homepage info - get ready to check Mathematikum best content for Germany right away, or after learning these important things about mathematikum.de

Das Mathematikum in Gießen ist das erste mathematische Mitmach-Museum der Welt mit über 150 Exponaten für Besucher jeden Alters und jeder Vorbildung.

Visit mathematikum.de

Key Findings

We analyzed Mathematikum.de page load time and found that the first response time was 303 ms and then it took 2.5 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

mathematikum.de performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value5.4 s

71/100

10%

Network Requests Diagram

mathematikum.de

303 ms

mathematikum.de

539 ms

flexslider.css

104 ms

mods.css

212 ms

bootstrap.min.css

368 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that all of those requests were addressed to Mathematikum.de and no external sources were called. The less responsive or slowest element that took the longest time to load (831 ms) belongs to the original domain Mathematikum.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 55.6 kB (3%)

Content Size

1.6 MB

After Optimization

1.6 MB

  • HTML
  • Images

In fact, the total size of Mathematikum.de main page is 1.6 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 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 50.7 kB

  • Original 62.0 kB
  • After minification 59.7 kB
  • After compression 11.2 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 50.7 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 4.8 kB

  • Original 1.6 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. Mathematikum images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 17 (45%)

Requests Now

38

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mathematikum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

mathematikum.de

mathematikum.de

303 ms

mathematikum.de

mathematikum.de

539 ms

flexslider.css

flexslider.css

104 ms

mods.css

mods.css

212 ms

bootstrap.min.css

bootstrap.min.css

368 ms

all.min.css

all.min.css

274 ms

fonts.css

fonts.css

279 ms

style.css

style.css

291 ms

mask.css

mask.css

297 ms

news.css

news.css

314 ms

openinghours.css

openinghours.css

373 ms

bootstrap-datepicker3.min.css

bootstrap-datepicker3.min.css

377 ms

style.css

style.css

392 ms

jquery.min.js

jquery.min.js

501 ms

bootstrap.min.js

bootstrap.min.js

417 ms

bootstrap-datepicker.min.js

bootstrap-datepicker.min.js

463 ms

bootstrap-datepicker.de.min.js

bootstrap-datepicker.de.min.js

464 ms

62b8391210.js

62b8391210.js

477 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

492 ms

ConsentController.js

ConsentController.js

554 ms

klaro.js

klaro.js

650 ms

mathematikum.gif

mathematikum.gif

105 ms

csm_germany_aa11ff5a8c_412f8add1f.png

csm_germany_aa11ff5a8c_412f8add1f.png

109 ms

csm_uk_d28473e486_1716fab1b0.png

csm_uk_d28473e486_1716fab1b0.png

107 ms

icon-suche.jpg

icon-suche.jpg

105 ms

fader_pi_02.jpg

fader_pi_02.jpg

395 ms

fader_knobeltische_3.jpg

fader_knobeltische_3.jpg

494 ms

start3_02.jpg

start3_02.jpg

377 ms

fader_quadratpuzzle_02.jpg

fader_quadratpuzzle_02.jpg

390 ms

fader_kugelbahnraum_02.jpg

fader_kugelbahnraum_02.jpg

588 ms

fader_knobeltische.jpg

fader_knobeltische.jpg

301 ms

slideshow-button.png

slideshow-button.png

398 ms

lato-v16-latin-regular.woff

lato-v16-latin-regular.woff

460 ms

lato-v16-latin-700.woff

lato-v16-latin-700.woff

474 ms

fa-solid-900.woff

fa-solid-900.woff

486 ms

fa-regular-400.woff

fa-regular-400.woff

482 ms

Wieder_geoeffnet.jpg

Wieder_geoeffnet.jpg

634 ms

csm_Kachel_HP_c2f81b6645.jpg

csm_Kachel_HP_c2f81b6645.jpg

831 ms

roehrenzumhoeren.jpg

roehrenzumhoeren.jpg

570 ms

mathematikum-start.jpg

mathematikum-start.jpg

570 ms

penrose2.jpg

penrose2.jpg

577 ms

graue_box.png

graue_box.png

665 ms

fa-brands-400.woff

fa-brands-400.woff

623 ms

slider-prev.png

slider-prev.png

506 ms

slider-next.png

slider-next.png

511 ms

flexslider-icon.woff

flexslider-icon.woff

556 ms

Accessibility Review

mathematikum.de 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.

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

Form elements do not have associated labels

Best Practices

mathematikum.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

mathematikum.de SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Mathematikum.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 Mathematikum.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

mathematikum.de

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