3.9 sec in total
597 ms
2.7 sec
564 ms
Welcome to en.nencki.gov.pl homepage info - get ready to check En Nencki best content for Poland right away, or after learning these important things about en.nencki.gov.pl
The Mission of the Nencki Institute of Experimental Biology is to excel in basic scientific research, maintaining the highest quality of scientific output in terms of created and disseminated knowledg...
Visit en.nencki.gov.plWe analyzed En.nencki.gov.pl page load time and found that the first response time was 597 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
en.nencki.gov.pl performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value9.6 s
0/100
25%
Value11.1 s
6/100
10%
Value180 ms
91/100
30%
Value0.022
100/100
15%
Value9.2 s
32/100
10%
597 ms
32 ms
48 ms
240 ms
231 ms
Our browser made a total of 48 requests to load all elements on the main page. We found that 29% of them (14 requests) were addressed to the original En.nencki.gov.pl, 38% (18 requests) were made to D1dmfej9n5lgmh.cloudfront.net and 17% (8 requests) were made to S3-eu-west-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source D1dmfej9n5lgmh.cloudfront.net.
Page size can be reduced by 777.0 kB (27%)
2.9 MB
2.1 MB
In fact, the total size of En.nencki.gov.pl main page is 2.9 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. 40% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.
Potential reduce by 68.6 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 12.4 kB, which is 15% 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 68.6 kB or 83% of the original size.
Potential reduce by 330.8 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. Obviously, En Nencki needs image optimization as it can save up to 330.8 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 253.8 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 253.8 kB or 68% of the original size.
Potential reduce by 123.8 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. En.nencki.gov.pl needs all CSS files to be minified and compressed as it can save up to 123.8 kB or 82% of the original size.
Number of requests can be reduced by 5 (11%)
47
42
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En Nencki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
en.nencki.gov.pl
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en.nencki.gov.pl accessibility score
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
ARIA input fields do not have accessible names
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
en.nencki.gov.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
en.nencki.gov.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise En.nencki.gov.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that En.nencki.gov.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.
en.nencki.gov.pl
Open Graph description is not detected on the main page of En Nencki. 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: