Access museum.de. museum.de as app available for your smartphone @museum.de

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

museum.de

391 ms

museum.de

402 ms

www.museum.de

2896 ms

font-awesome.css

98 ms

bootstrap.css

382 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 95% of them (73 requests) were addressed to the original Museum.de, 3% (2 requests) were made to Ping.museum.de and 1% (1 request) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Museum.de.

Content Size

3.0 MB

After Optimization

2.5 MB

In fact, the total size of Museum.de main page is 3.0 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. 60% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 94.1 kB

Original 108.5 kB
After minification 67.5 kB
After compression 14.4 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. This page needs HTML code to be minified as it can gain 41.0 kB, which is 38% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 94.1 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 36.1 kB

Original 2.4 MB
After minification 2.4 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. Museum images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 127.1 kB

Original 230.0 kB
After minification 229.9 kB
After compression 102.9 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 127.1 kB or 55% of the original size.

CSS Optimization

-85%

Potential reduce by 236.2 kB

Original 277.2 kB
After minification 234.1 kB
After compression 41.0 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. Museum.de needs all CSS files to be minified and compressed as it can save up to 236.2 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Museum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Requests the geolocation permission on page load

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

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 Museum.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 Museum.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

museum.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

museum.de as app available for your smartphone @museum.de

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

museum.de

museum.de

www.museum.de

font-awesome.css

bootstrap.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

museum.de

museum.de

www.museum.de

font-awesome.css

bootstrap.css

bootstrap-select.min.css

jquery.slider.min.css

style.css

jquery-2.1.0.min.js

cookieconsent.min.css

getBlog.js

jquery-migrate-1.2.1.min.js

bootstrap.min.js

smoothscroll.js

jquery.bxslider.js

imagesloaded.pkgd.min.js

masonry.pkgd.min.js

scrollReveal.min.js

jshashtable-2.1_src.js

jquery.numberformatter-1.2.3.js

tmpl.js

jquery.dependClass-0.1.js

draggable-0.1.js

jquery.slider.js

fileinput.min.js

custom.js

consent.min.js

museumsmesse-logo.jpg

logo.png

home-sharp-w.svg

Smartphone_200with.jpg

barrierefrei-titelseite-mit-rahmen-min.jpg

vr-m%C3%BCnster-kachel.jpg

vr-xanten-kachel.jpg

CranachTitelbild.jpg

oceanusmosaik.jpg

01-01-willkommen-aussen.jpg

fritz-reuter-museum-aussenansicht.jpg

IMG_20220804_063907%20(2).jpg

Lilienthal-Centrum-Stoellns.jpg

banner_kulturregionen.svg

thementag-fur-schulklassen-kombinierte-fuhrung-geschichtsort-1708439409-3274.jpg

gut-behutet-wie-vor-175-jahren-wir-gestalten-und-verzier-1716385698-3914.jpg