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catalysis.de screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    84% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

catalysis.de

Catalysis. Leibniz-Institut für Katalyse. Forschung über Katalysatoren: Home

Page Load Speed

2.8 sec in total

First Response

398 ms

Resources Loaded

2.1 sec

Page Rendered

219 ms

catalysis.de screenshot

About Website

Welcome to catalysis.de homepage info - get ready to check Catalysis best content for India right away, or after learning these important things about catalysis.de

Catalysis. Leibniz-Institut für Katalyse. Forschung über Katalysatoren.

Visit catalysis.de

Key Findings

We analyzed Catalysis.de page load time and found that the first response time was 398 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

catalysis.de performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

catalysis.de

398 ms

catalysis.de

400 ms

www.catalysis.de

518 ms

7015c8c4ac5ff815b57530b221005fc6.css

100 ms

style.css

304 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that all of those requests were addressed to Catalysis.de and no external sources were called. The less responsive or slowest element that took the longest time to load (518 ms) belongs to the original domain Catalysis.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.6 kB (13%)

Content Size

231.7 kB

After Optimization

202.1 kB

  • HTML
  • Images

In fact, the total size of Catalysis.de main page is 231.7 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. 20% of websites need less resources to load. Images take 198.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 27.2 kB

  • Original 33.7 kB
  • After minification 24.1 kB
  • After compression 6.4 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 9.5 kB, which is 28% 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 27.2 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 2.4 kB

  • Original 198.0 kB
  • After minification 195.6 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. Catalysis images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 3 (16%)

Requests Now

19

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Catalysis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

catalysis.de

catalysis.de

398 ms

catalysis.de

catalysis.de

400 ms

www.catalysis.de

www.catalysis.de

518 ms

7015c8c4ac5ff815b57530b221005fc6.css

7015c8c4ac5ff815b57530b221005fc6.css

100 ms

style.css

style.css

304 ms

jquery.min.js

jquery.min.js

399 ms

modernizr-custom.js

modernizr-custom.js

297 ms

main.min.js

main.min.js

457 ms

ba19e614c16923a947df5b199324c770.js

ba19e614c16923a947df5b199324c770.js

302 ms

Logo_LIKAT_2019.svg

Logo_LIKAT_2019.svg

102 ms

IG_Glyph_Fill.png

IG_Glyph_Fill.png

103 ms

Twitter.svg

Twitter.svg

102 ms

LI-In-Bug.png

LI-In-Bug.png

100 ms

start_img.jpg

start_img.jpg

402 ms

csm_E-Quality_Logo_200_cef5470866.png

csm_E-Quality_Logo_200_cef5470866.png

104 ms

csm_Leibniz-Gemeinschaft-Logo-D_blau_2_2d8a8a7d00.png

csm_Leibniz-Gemeinschaft-Logo-D_blau_2_2d8a8a7d00.png

201 ms

csm_Logo_EU_c67c11c57e.jpg

csm_Logo_EU_c67c11c57e.jpg

199 ms

csm_Wissenschaftscampus_logo_RZ_RGB_dt_d7be711c4d.jpg

csm_Wissenschaftscampus_logo_RZ_RGB_dt_d7be711c4d.jpg

199 ms

csm_EN_Funded_by_the_European_Union_POS_cd119bf8aa.jpg

csm_EN_Funded_by_the_European_Union_POS_cd119bf8aa.jpg

202 ms

csm_Logo_quer_gross_6fc8431b64.jpg

csm_Logo_quer_gross_6fc8431b64.jpg

203 ms

csm_PePPP_cbf665189e.jpg

csm_PePPP_cbf665189e.jpg

296 ms

Leibniz-Gemeinschaft-Logo-D_blau.svg

Leibniz-Gemeinschaft-Logo-D_blau.svg

297 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

346 ms

Accessibility Review

catalysis.de accessibility score

81

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

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

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

Best Practices

catalysis.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

catalysis.de SEO score

84

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

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

    N/A

  • Encoding

    UTF-8

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

catalysis.de

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