Tools & Wizards About Us

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

gdch.de

Gesellschaft Deutscher Chemiker | Gesellschaft Deutscher Chemiker e.V.

Page Load Speed

3.8 sec in total

First Response

342 ms

Resources Loaded

3 sec

Page Rendered

436 ms

About Website

Visit gdch.de now to see the best up-to-date Gdch content for India and also check out these interesting facts you probably never knew about gdch.de

Die Gesellschaft Deutscher Chemiker vereint die den chemischen und molekularen Wissenschaften verbundenen Menschen.

Visit gdch.de

Key Findings

We analyzed Gdch.de page load time and found that the first response time was 342 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

gdch.de performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value15.8 s

0/100

25%

SI (Speed Index)

Value13.1 s

2/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

Network Requests Diagram

gdch.de

342 ms

www.gdch.de

731 ms

a680e90352.css

193 ms

cookie_banner.css

291 ms

app1.css

396 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 84% of them (56 requests) were addressed to the original Gdch.de, 12% (8 requests) were made to Cloud.ccm19.de and 3% (2 requests) were made to Analytics.gdch.app. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Uber.gdch.app.

Page Optimization Overview & Recommendations

Page size can be reduced by 431.6 kB (7%)

Content Size

6.4 MB

After Optimization

5.9 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Gdch.de main page is 6.4 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. 50% of websites need less resources to load. Images take 6.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 94.0 kB

  • Original 114.1 kB
  • After minification 89.7 kB
  • After compression 20.1 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 24.4 kB, which is 21% 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 94.0 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 315.0 kB

  • Original 6.1 MB
  • After minification 5.7 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. Gdch images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 22.6 kB

  • Original 208.0 kB
  • After minification 208.0 kB
  • After compression 185.4 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 22.6 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (49%)

Requests Now

53

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gdch. 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 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

gdch.de accessibility score

84

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

gdch.de best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

gdch.de SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Gdch.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 Gdch.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

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