3.4 sec in total
829 ms
2.4 sec
224 ms
Welcome to chemia.waw.pl homepage info - get ready to check Chemia best content for Poland right away, or after learning these important things about chemia.waw.pl
Chemia - portal chemiczny dla chemików i nie tylko. Zawiera artykuły z dziedziny chemii np. estry, etanol, chemia nieorganiczne, organiczna, metody badawcze.
Visit chemia.waw.plWe analyzed Chemia.waw.pl page load time and found that the first response time was 829 ms and then it took 2.6 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.
chemia.waw.pl performance score
name
value
score
weighting
Value2.4 s
70/100
10%
Value3.1 s
75/100
25%
Value3.8 s
83/100
10%
Value380 ms
70/100
30%
Value0
100/100
15%
Value3.8 s
90/100
10%
829 ms
250 ms
240 ms
7 ms
410 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 76% of them (39 requests) were addressed to the original Chemia.waw.pl, 8% (4 requests) were made to Pagead2.googlesyndication.com and 8% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1000 ms) belongs to the original domain Chemia.waw.pl.
Page size can be reduced by 21.5 kB (29%)
75.2 kB
53.8 kB
In fact, the total size of Chemia.waw.pl main page is 75.2 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. 25% of websites need less resources to load. Images take 27.6 kB which makes up the majority of the site volume.
Potential reduce by 11.1 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. 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 11.1 kB or 75% of the original size.
Potential reduce by 1.5 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. Chemia images are well optimized though.
Potential reduce by 1.9 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.
Potential reduce by 7.0 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. Chemia.waw.pl needs all CSS files to be minified and compressed as it can save up to 7.0 kB or 73% of the original size.
Number of requests can be reduced by 29 (58%)
50
21
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
chemia.waw.pl
829 ms
chemia.css
250 ms
chemia.js
240 ms
show_ads.js
7 ms
chemia-home-box.js
410 ms
chemia-bottom.js
313 ms
urchin.js
18 ms
global.css
143 ms
header.css
148 ms
menu.css
137 ms
content.css
321 ms
body_bg.png
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chemia.png
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start.png
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mapa.png
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feed.png
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szukaj.png
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topmenu_bg.gif
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chem_pic.jpg
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li_cirarrow.gif
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ca-pub-1408200142096731.js
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zrt_lookup.html
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show_ads_impl.js
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menu_bg.png
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li_circle.gif
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title_bg.png
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heading_bg.png
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__utm.gif
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ads
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osd.js
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chemia_print.css
108 ms
chemia.waw.pl accessibility score
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
<frame> or <iframe> elements do not have a title
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
chemia.waw.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
chemia.waw.pl SEO score
PL
PL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemia.waw.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Chemia.waw.pl 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.
chemia.waw.pl
Open Graph description is not detected on the main page of Chemia. 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: