3.9 sec in total
314 ms
2.4 sec
1.2 sec
Click here to check amazing Oleje content for Czech Republic. Otherwise, check out these important facts you probably never knew about oleje.cz
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Visit oleje.czWe analyzed Oleje.cz page load time and found that the first response time was 314 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
oleje.cz performance score
name
value
score
weighting
Value3.3 s
39/100
10%
Value9.6 s
0/100
25%
Value8.8 s
16/100
10%
Value1,630 ms
12/100
30%
Value0.247
50/100
15%
Value13.0 s
13/100
10%
314 ms
711 ms
96 ms
520 ms
197 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 88% of them (29 requests) were addressed to the original Oleje.cz, 3% (1 request) were made to Cdn.easycookie.io and 3% (1 request) were made to Polyfill.io. The less responsive or slowest element that took the longest time to load (780 ms) belongs to the original domain Oleje.cz.
Page size can be reduced by 153.5 kB (43%)
354.5 kB
201.0 kB
In fact, the total size of Oleje.cz main page is 354.5 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. 25% of websites need less resources to load. HTML takes 177.1 kB which makes up the majority of the site volume.
Potential reduce by 153.5 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 48.9 kB, which is 28% 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 153.5 kB or 87% of the original size.
Potential reduce by 0 B
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. Oleje images are well optimized though.
Potential reduce by 15 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 21 B
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. Oleje.cz has all CSS files already compressed.
Number of requests can be reduced by 5 (19%)
27
22
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oleje. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
oleje.cz
314 ms
www.oleje.cz
711 ms
googletagmanager.js
96 ms
ec-eDNuYraW0Va8tLxZrHY6LtedZKMVvC6NgqAlvqg4.js
520 ms
main.css
197 ms
polyfill.min.js
490 ms
app.js
703 ms
gtm.js
118 ms
loader.js
169 ms
hero-bg.jpg
251 ms
symbol.svg
161 ms
novinky-icon.webp
250 ms
ekolube-icon.webp
251 ms
poradna-icon.webp
344 ms
forum-icon.webp
344 ms
1561316
365 ms
1543236
363 ms
1551159
365 ms
1565762
462 ms
1565760
461 ms
1551357
459 ms
1562381
479 ms
1545691
476 ms
1545449
479 ms
1565406
571 ms
help-card-main-bg.webp
553 ms
help-card-oil-lamp.webp
555 ms
help-card-oil-meter.webp
569 ms
map-bg.webp
571 ms
Raleway-Regular.woff
703 ms
Raleway-Light.woff
775 ms
Raleway-Bold.woff
780 ms
Raleway-Black.woff
698 ms
oleje.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.
oleje.cz 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
Missing source maps for large first-party JavaScript
oleje.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oleje.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Oleje.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.
oleje.cz
Open Graph data is detected on the main page of Oleje. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: