Access ojn.umcs.lublin.pl.

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

ojn.umcs.lublin.pl

1821 ms

image001.jpg

245 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Ojn.umcs.lublin.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Ojn.umcs.lublin.pl.

Content Size

41.2 kB

After Optimization

7.2 kB

In fact, the total size of Ojn.umcs.lublin.pl main page is 41.2 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 37.5 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 33.2 kB

Original 37.5 kB
After minification 36.7 kB
After compression 4.3 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 33.2 kB or 89% of the original size.

Image Optimization

-21%

Potential reduce by 781 B

Original 3.7 kB
After minification 2.9 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, Ojn Umcs needs image optimization as it can save up to 781 B or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Now

After Optimization

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ojn Umcs. According to our analytics all requests are already optimized.

Accessibility Issues

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.

High

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

PL
Language Claimed

N/A
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ojn.umcs.lublin.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ojn.umcs.lublin.pl main page’s claimed encoding is windows-1250. 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

ojn.umcs.lublin.pl

Open Graph description is not detected on the main page of Ojn Umcs. 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: