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chemieonline.de screenshot

Report Summary

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    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

chemieonline.de

ChemieOnline - Forum für Chemie und weitere Wissenchaften, Informationen und Wissen

Page Load Speed

7.3 sec in total

First Response

369 ms

Resources Loaded

6.8 sec

Page Rendered

132 ms

chemieonline.de screenshot

About Website

Visit chemieonline.de now to see the best up-to-date Chemie Online content for Germany and also check out these interesting facts you probably never knew about chemieonline.de

ChemieOnline bietet Ihnen Informationen zur Chemie und weiteren Naturwissenschaften, Stellenangebote, ein Fachforum für Ihre Fragen und weitere Informationen

Visit chemieonline.de

Key Findings

We analyzed Chemieonline.de page load time and found that the first response time was 369 ms and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

chemieonline.de performance score

0

Network Requests Diagram

chemieonline.de

369 ms

www.chemieonline.de

4557 ms

hauptstyle.css

209 ms

iam.js

396 ms

RTA.js

23 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 10% of them (9 requests) were addressed to the original Chemieonline.de, 11% (10 requests) were made to Dmp.theadex.com and 10% (9 requests) were made to Cm.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (4.6 sec) belongs to the original domain Chemieonline.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 596.8 kB (58%)

Content Size

1.0 MB

After Optimization

437.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemieonline.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. 45% of websites need less resources to load. Javascripts take 674.3 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 129.4 kB

  • Original 177.1 kB
  • After minification 175.0 kB
  • After compression 47.8 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 129.4 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 4.2 kB

  • Original 171.2 kB
  • After minification 167.0 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. Chemie Online images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 453.7 kB

  • Original 674.3 kB
  • After minification 655.3 kB
  • After compression 220.6 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 453.7 kB or 67% of the original size.

CSS Optimization

-79%

Potential reduce by 9.5 kB

  • Original 12.0 kB
  • After minification 11.1 kB
  • After compression 2.5 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. Chemieonline.de needs all CSS files to be minified and compressed as it can save up to 9.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (71%)

Requests Now

79

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemie 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 37 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

chemieonline.de

chemieonline.de

369 ms

www.chemieonline.de

www.chemieonline.de

4557 ms

hauptstyle.css

hauptstyle.css

209 ms

iam.js

iam.js

396 ms

RTA.js

RTA.js

23 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

13 ms

brand

brand

17 ms

brand

brand

53 ms

druck.css

druck.css

109 ms

rta.js

rta.js

41 ms

px.js

px.js

47 ms

adex.js

adex.js

259 ms

learn

learn

183 ms

gpt.js

gpt.js

4 ms

pubads_impl_81.js

pubads_impl_81.js

5 ms

container.html

container.html

18 ms

co_logo.gif

co_logo.gif

109 ms

chemie.jpg

chemie.jpg

205 ms

577_cover_small.gif

577_cover_small.gif

290 ms

Logo_sw_Partner_trans_gross.png

Logo_sw_Partner_trans_gross.png

291 ms

doppelpfeil.gif

doppelpfeil.gif

202 ms

tx.io

tx.io

194 ms

pixel

pixel

42 ms

pixel

pixel

16 ms

ca.png

ca.png

356 ms

ca.png

ca.png

369 ms

tx.io

tx.io

98 ms

t.js

t.js

98 ms

ads

ads

354 ms

1.gif

1.gif

90 ms

analytic.js

analytic.js

176 ms

177 ms

23 ms

pixel

pixel

19 ms

cm.gif

cm.gif

88 ms

13 ms

2.gif

2.gif

87 ms

2.gif

2.gif

87 ms

expansion_embed.js

expansion_embed.js

24 ms

css

css

113 ms

m_js_controller.js

m_js_controller.js

73 ms

favicon

favicon

160 ms

abg.js

abg.js

103 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

44 ms

osd.js

osd.js

39 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

95 ms

2.gif

2.gif

145 ms

2.gif

2.gif

140 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

96 ms

bsredirect5.js

bsredirect5.js

145 ms

adj

adj

215 ms

beacon

beacon

181 ms

x_button_blue2.png

x_button_blue2.png

50 ms

s

s

135 ms

push

push

43 ms

NYDWBdD4gIq26G5XYbHsFKCWcynf_cDxXwCLxiixG1c.ttf

NYDWBdD4gIq26G5XYbHsFKCWcynf_cDxXwCLxiixG1c.ttf

130 ms

gp_match

gp_match

117 ms

bst2tv3.html

bst2tv3.html

125 ms

verifyc.js

verifyc.js

52 ms

pixel

pixel

29 ms

aclk

aclk

55 ms

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

19 ms

lidar.js

lidar.js

6 ms

antenna2.js

antenna2.js

74 ms

dvtp_src.js

dvtp_src.js

83 ms

ca

ca

100 ms

index.html

index.html

58 ms

firstevent

firstevent

13 ms

easeljs-0.8.1.min.js

easeljs-0.8.1.min.js

128 ms

tweenjs-0.6.1.min.js

tweenjs-0.6.1.min.js

136 ms

movieclip-0.8.1.min.js

movieclip-0.8.1.min.js

136 ms

preloadjs-0.6.1.min.js

preloadjs-0.6.1.min.js

127 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP.js

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP.js

4 ms

dvtp_src_internal25.js

dvtp_src_internal25.js

27 ms

pixel

pixel

96 ms

sbhK2lTE.js

sbhK2lTE.js

6 ms

push

push

141 ms

t2tv7.html

t2tv7.html

115 ms

visit.js

visit.js

76 ms

cTrvNaRi.html

cTrvNaRi.html

35 ms

pixel

pixel

77 ms

pixel

pixel

84 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.json

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.json

50 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

53 ms

m

m

89 ms

avs5634.js

avs5634.js

54 ms

query.js

query.js

66 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.png

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.png

58 ms

event.gif

event.gif

56 ms

event.jpg

event.jpg

25 ms

pixel

pixel

15 ms

query.js

query.js

19 ms

event.gif

event.gif

9 ms

sd

sd

29 ms

SEO Factors

chemieonline.de SEO score

0

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemieonline.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Chemieonline.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

chemieonline.de

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