3.9 sec in total
947 ms
2.5 sec
466 ms
Click here to check amazing Ossolineum content for Poland. Otherwise, check out these important facts you probably never knew about ossolineum.pl
Visit ossolineum.plWe analyzed Ossolineum.pl page load time and found that the first response time was 947 ms and then it took 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.
ossolineum.pl performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value4.7 s
32/100
25%
Value6.9 s
33/100
10%
Value110 ms
97/100
30%
Value0.001
100/100
15%
Value10.2 s
25/100
10%
947 ms
340 ms
228 ms
228 ms
237 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 87% of them (34 requests) were addressed to the original Ossolineum.pl, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (989 ms) belongs to the original domain Ossolineum.pl.
Page size can be reduced by 357.1 kB (7%)
4.8 MB
4.5 MB
In fact, the total size of Ossolineum.pl main page is 4.8 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 4.4 MB which makes up the majority of the site volume.
Potential reduce by 46.7 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 46.7 kB or 81% of the original size.
Potential reduce by 64.5 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. Ossolineum images are well optimized though.
Potential reduce by 120.8 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 120.8 kB or 66% of the original size.
Potential reduce by 125.2 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. Ossolineum.pl needs all CSS files to be minified and compressed as it can save up to 125.2 kB or 83% of the original size.
Number of requests can be reduced by 15 (45%)
33
18
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ossolineum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
ossolineum.pl
947 ms
wp-emoji-release.min.js
340 ms
page-list.css
228 ms
addtoany.min.css
228 ms
thickbox.min.css
237 ms
jquery.min.js
32 ms
thickbox.min.js
355 ms
jscripts.php
318 ms
bootstrap.min.css
676 ms
bootstrap-theme.min.css
343 ms
basic-jquery-slider.css
353 ms
style.css
430 ms
slick.css
451 ms
jscripts-ftr-min.js
256 ms
wp-embed.min.js
273 ms
slick.min.js
275 ms
logo.png
226 ms
icons.png
164 ms
batowski.jpg
824 ms
ossdziedz.jpg
277 ms
wydawnictwo2.jpg
476 ms
konserwacja.jpg
689 ms
wystawah.jpg
718 ms
bibioteka.jpg
934 ms
MPT_lekcje_info_og%C3%B3lne_www.jpg
881 ms
wratislavia_banner.jpg
905 ms
banner.jpg
889 ms
sygnatura_milionowa.jpg
885 ms
logo-1024x701.jpg
939 ms
page.js
137 ms
ga.js
8 ms
BrandonText-Regular.otf
967 ms
PTF55F.woff
989 ms
BrandonText-Bold.otf
985 ms
ajax-loader.gif
872 ms
loadingAnimation.gif
885 ms
slick.woff
889 ms
__utm.gif
15 ms
collect
66 ms
ossolineum.pl accessibility score
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
ossolineum.pl 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
Page has valid source maps
ossolineum.pl SEO score
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
Tap targets are not sized appropriately
PL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ossolineum.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Ossolineum.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.
ossolineum.pl
Open Graph description is not detected on the main page of Ossolineum. 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: