718 ms in total
313 ms
326 ms
79 ms
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Visit cerna-hora.orbion.czWe analyzed Cerna-hora.orbion.cz page load time and found that the first response time was 313 ms and then it took 405 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
cerna-hora.orbion.cz performance score
name
value
score
weighting
Value8.6 s
0/100
10%
Value13.4 s
0/100
25%
Value17.8 s
0/100
10%
Value3,170 ms
2/100
30%
Value0.001
100/100
15%
Value36.2 s
0/100
10%
313 ms
Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Cerna-hora.orbion.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (313 ms) belongs to the original domain Cerna-hora.orbion.cz.
Page size can be reduced by 526.8 kB (24%)
2.2 MB
1.7 MB
In fact, the total size of Cerna-hora.orbion.cz main page is 2.2 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 57 B
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 57 B or 33% of the original size.
Potential reduce by 38.6 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. Cerna Hora Orbion images are well optimized though.
Potential reduce by 461.1 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 461.1 kB or 62% of the original size.
Potential reduce by 27.1 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. Cerna-hora.orbion.cz needs all CSS files to be minified and compressed as it can save up to 27.1 kB or 72% of the original size.
We found no issues to fix!
0
0
Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.
cerna-hora.orbion.cz
313 ms
cerna-hora.orbion.cz 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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
cerna-hora.orbion.cz 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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
cerna-hora.orbion.cz SEO score
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
CS
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cerna-hora.orbion.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Cerna-hora.orbion.cz main page’s claimed encoding is . 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.
cerna-hora.orbion.cz
Open Graph description is not detected on the main page of Cerna Hora Orbion. 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: