Access dsm.museum. Deutsches Schifffahrtsmuseum

Report Summary

About Website

Welcome to dsm.museum homepage info - get ready to check Dsm best content for Germany right away, or after learning these important things about dsm.museum

Das Deutsche Schifffahrtsmuseum in Bremerhaven ist ein Forschungsmuseum der Leibniz-Gemeinschaft und ein Ort der Bildung und des Dialogs im Herzen des Museumshafens.

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value26.1 s

0/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value170 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value1.018

2/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

dsm.museum

327 ms

753 ms

7015c8c4ac5ff815b57530b221005fc6.css

226 ms

main.max.css

444 ms

externalContentConsent.css

333 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 96% of them (49 requests) were addressed to the original Dsm.museum, 4% (2 requests) were made to Analytics.dsm.museum. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Dsm.museum.

Content Size

15.1 MB

After Optimization

15.0 MB

In fact, the total size of Dsm.museum main page is 15.1 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. 40% of websites need less resources to load. Images take 15.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 115.3 kB

Original 148.5 kB
After minification 131.3 kB
After compression 33.3 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 17.2 kB, which is 12% 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 115.3 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 18.9 kB

Original 15.0 MB
After minification 14.9 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. Dsm images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 54 B

Original 21.6 kB
After minification 21.6 kB
After compression 21.5 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.

Requests Now

After Optimization

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dsm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

These are opportunities to improve the legibility of your content.

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

robots.txt is not valid

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 Dsm.museum 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 Dsm.museum 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

dsm.museum

Open Graph data is detected on the main page of Dsm. 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

Deutsches Schifffahrtsmuseum

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)