4.8 sec in total
764 ms
3.2 sec
786 ms
Visit biolib.cz now to see the best up-to-date Bio Lib content for Russia and also check out these interesting facts you probably never knew about biolib.cz
Mezinárodní encyklopedie rostlin, hub a živočichů. Vedle taxonomického systému nabízí i bohatou galerii fotografií, výkladový a překladový slovník, databázi odkazů, biotopů a chráněných území, diskuzn...
Visit biolib.czWe analyzed Biolib.cz page load time and found that the first response time was 764 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
biolib.cz performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value4.6 s
35/100
25%
Value4.7 s
68/100
10%
Value670 ms
44/100
30%
Value0.014
100/100
15%
Value5.8 s
66/100
10%
764 ms
1118 ms
484 ms
360 ms
4 ms
Our browser made a total of 30 requests to load all elements on the main page. We found that 87% of them (26 requests) were addressed to the original Biolib.cz, 7% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Biolib.cz.
Page size can be reduced by 68.5 kB (63%)
108.3 kB
39.8 kB
In fact, the total size of Biolib.cz main page is 108.3 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. 20% of websites need less resources to load. Javascripts take 63.5 kB which makes up the majority of the site volume.
Potential reduce by 11.8 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 11.8 kB or 66% of the original size.
Potential reduce by 1.0 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. Obviously, Bio Lib needs image optimization as it can save up to 1.0 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 39.6 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 39.6 kB or 62% of the original size.
Potential reduce by 16.1 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. Biolib.cz needs all CSS files to be minified and compressed as it can save up to 16.1 kB or 80% of the original size.
Number of requests can be reduced by 12 (44%)
27
15
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bio Lib. 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.
biolib.cz
764 ms
www.biolib.cz
1118 ms
style2.css
484 ms
scripts.min.js
360 ms
jquery-1.11.2.min.js
4 ms
analytics.js
231 ms
shad.gif
144 ms
barside1.gif
125 ms
home.gif
124 ms
help.gif
222 ms
sitemap.gif
236 ms
bllogo.gif
237 ms
c4.gif
240 ms
CZflag.gif
238 ms
ENflag.gif
245 ms
bullnavy.gif
338 ms
mainheaderwinter2006.gif
508 ms
cl2.gif
348 ms
mapsavcicr2.gif
397 ms
mapherpcr2.gif
424 ms
maprybycr2.gif
419 ms
mapbezobratlicr2.gif
473 ms
_96656.jpg
460 ms
1.gif
514 ms
cr2.gif
526 ms
ico-social.png
556 ms
net.gif
567 ms
collect
25 ms
collect
74 ms
stylep.css
121 ms
biolib.cz 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
Form elements do not have associated labels
Links do not have a discernible name
biolib.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
biolib.cz SEO score
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biolib.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Biolib.cz 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.
biolib.cz
Open Graph description is not detected on the main page of Bio Lib. 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: