Tools & Wizards About Us
chemanager-online.de screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

chemanager-online.de

Startseite | CHEManager

Page Load Speed

4.1 sec in total

First Response

332 ms

Resources Loaded

3 sec

Page Rendered

795 ms

chemanager-online.de screenshot

About Website

Visit chemanager-online.de now to see the best up-to-date CHEManager Online content and also check out these interesting facts you probably never knew about chemanager-online.de

News and information about Chemistry and Life Science.

Visit chemanager-online.de

Key Findings

We analyzed Chemanager-online.de page load time and found that the first response time was 332 ms and then it took 3.8 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

chemanager-online.de performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value13.1 s

2/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

chemanager-online.de

332 ms

en

201 ms

css_597ddffbcca372a554fbb47190c037da.css

399 ms

spcjs.php

492 ms

js_171cfbb15383c42b6ee4a85b574a56b9.js

633 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Chemanager-online.de, 62% (43 requests) were made to Chemanager-online.com and 25% (17 requests) were made to Banner.gitverlag.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Chemanager-online.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 309.7 kB (31%)

Content Size

1.0 MB

After Optimization

692.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemanager-online.de main page is 1.0 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. 35% of websites need less resources to load. Images take 609.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 27.1 kB

  • Original 35.5 kB
  • After minification 34.6 kB
  • After compression 8.4 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. 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 27.1 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 39.2 kB

  • Original 609.2 kB
  • After minification 570.0 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. CHEManager Online images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 180.2 kB

  • Original 280.6 kB
  • After minification 255.4 kB
  • After compression 100.4 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 180.2 kB or 64% of the original size.

CSS Optimization

-82%

Potential reduce by 63.3 kB

  • Original 77.4 kB
  • After minification 76.4 kB
  • After compression 14.1 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. Chemanager-online.de needs all CSS files to be minified and compressed as it can save up to 63.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (29%)

Requests Now

65

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CHEManager Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

chemanager-online.de

chemanager-online.de

332 ms

en

en

201 ms

css_597ddffbcca372a554fbb47190c037da.css

css_597ddffbcca372a554fbb47190c037da.css

399 ms

spcjs.php

spcjs.php

492 ms

js_171cfbb15383c42b6ee4a85b574a56b9.js

js_171cfbb15383c42b6ee4a85b574a56b9.js

633 ms

spc.php

spc.php

193 ms

fl.js

fl.js

180 ms

css_018260c7992a89b76d08b6d20501c9fb.css

css_018260c7992a89b76d08b6d20501c9fb.css

291 ms

microsite_logo_160_0.png

microsite_logo_160_0.png

277 ms

tile_body.png

tile_body.png

224 ms

keyvisual_en.jpg

keyvisual_en.jpg

361 ms

tile_header.png

tile_header.png

226 ms

logo_en.png

logo_en.png

224 ms

ico_lock.png

ico_lock.png

226 ms

ico_people.png

ico_people.png

293 ms

ico_lang_de.png

ico_lang_de.png

362 ms

ico_lang_uk.png

ico_lang_uk.png

363 ms

ico_zoom.png

ico_zoom.png

363 ms

38786919_topteaser.jpg

38786919_topteaser.jpg

451 ms

ico_arrow_east_red.png

ico_arrow_east_red.png

472 ms

38786947_topteaser.jpg

38786947_topteaser.jpg

623 ms

38786682_topteaser.jpg

38786682_topteaser.jpg

630 ms

38786589_topteaser.jpg

38786589_topteaser.jpg

629 ms

38786414_topteaser.jpg

38786414_topteaser.jpg

665 ms

38785934_topteaser.jpg

38785934_topteaser.jpg

805 ms

38787214_frontpage.jpg

38787214_frontpage.jpg

647 ms

38786602_frontpage.jpg

38786602_frontpage.jpg

804 ms

38785718_frontpage.jpg

38785718_frontpage.jpg

799 ms

38787170_frontpage.png

38787170_frontpage.png

887 ms

38787506_print.jpg

38787506_print.jpg

906 ms

facebook_icon_square_0.JPG

facebook_icon_square_0.JPG

833 ms

twitter_icon_square.JPG

twitter_icon_square.JPG

975 ms

linkedin_icon_square.JPG

linkedin_icon_square.JPG

976 ms

e316c1a845cc8d19f55049e1176cbaf9.png

e316c1a845cc8d19f55049e1176cbaf9.png

190 ms

3banners.php

3banners.php

1139 ms

lg.php

lg.php

191 ms

roboto-regular.woff

roboto-regular.woff

1076 ms

roboto-bold.woff

roboto-bold.woff

1137 ms

roboto-medium.woff

roboto-medium.woff

1172 ms

roboto-light.woff

roboto-light.woff

1236 ms

c02e31ab3b03daa19ab71d10892fa7bc.jpg

c02e31ab3b03daa19ab71d10892fa7bc.jpg

308 ms

lg.php

lg.php

189 ms

e8ecf8f8e850c4aab523c50e978bb589.jpg

e8ecf8f8e850c4aab523c50e978bb589.jpg

358 ms

lg.php

lg.php

191 ms

ico_rss_small.png

ico_rss_small.png

1121 ms

ico_email_small.png

ico_email_small.png

1241 ms

ico_facebook_small.png

ico_facebook_small.png

1290 ms

ico_twitter_small.png

ico_twitter_small.png

1296 ms

ico_googleplus_small.png

ico_googleplus_small.png

1296 ms

ico_linkedin_small.png

ico_linkedin_small.png

1314 ms

ga.js

ga.js

5 ms

elqCfg.min.js

elqCfg.min.js

13 ms

__utm.gif

__utm.gif

17 ms

logo_git_wiley.png

logo_git_wiley.png

1225 ms

ajax-loader.gif

ajax-loader.gif

1262 ms

ico_arrow_east_red_big.png

ico_arrow_east_red_big.png

1309 ms

ico_arrow_east_gray_big.png

ico_arrow_east_gray_big.png

1314 ms

svrGP

svrGP

122 ms

svrGP

svrGP

60 ms

svrGP.aspx

svrGP.aspx

28 ms

svrGP.aspx

svrGP.aspx

42 ms

cb865d0e45f6e532e2f9245201f25b59.gif

cb865d0e45f6e532e2f9245201f25b59.gif

269 ms

lg.php

lg.php

185 ms

978d8dbd81589bd13656ee8fe7cd6df4.jpg

978d8dbd81589bd13656ee8fe7cd6df4.jpg

271 ms

lg.php

lg.php

189 ms

7abd85fd70455fbf2270823855751bf0.jpg

7abd85fd70455fbf2270823855751bf0.jpg

270 ms

lg.php

lg.php

187 ms

288e6b1f5a335edccf2729e140dd8b52.jpg

288e6b1f5a335edccf2729e140dd8b52.jpg

361 ms

lg.php

lg.php

367 ms

Accessibility Review

chemanager-online.de accessibility score

74

Accessibility Issues

ARIA

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.

Impact

Issue

High

[role] values are not valid

High

ARIA IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

chemanager-online.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

chemanager-online.de SEO score

77

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemanager-online.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Chemanager-online.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

chemanager-online.de

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