2.7 sec in total
531 ms
1.7 sec
428 ms
Welcome to mirror.cz homepage info - get ready to check MIRROR best content right away, or after learning these important things about mirror.cz
MIRROR stolařství | výroba oken a dveří
Visit mirror.czWe analyzed Mirror.cz page load time and found that the first response time was 531 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
mirror.cz performance score
name
value
score
weighting
Value1.6 s
95/100
10%
Value12.3 s
0/100
25%
Value5.2 s
60/100
10%
Value110 ms
97/100
30%
Value0.037
100/100
15%
Value6.6 s
57/100
10%
531 ms
102 ms
206 ms
208 ms
35 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 89% of them (31 requests) were addressed to the original Mirror.cz, 3% (1 request) were made to Fonts.googleapis.com and 3% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (783 ms) belongs to the original domain Mirror.cz.
Page size can be reduced by 293.8 kB (7%)
4.2 MB
3.9 MB
In fact, the total size of Mirror.cz main page is 4.2 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. 45% of websites need less resources to load. Images take 4.1 MB which makes up the majority of the site volume.
Potential reduce by 18.0 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 3.2 kB, which is 14% 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 18.0 kB or 76% of the original size.
Potential reduce by 259.3 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. MIRROR images are well optimized though.
Potential reduce by 13.3 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 13.3 kB or 18% of the original size.
Potential reduce by 3.2 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. Mirror.cz needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 34% of the original size.
Number of requests can be reduced by 6 (21%)
29
23
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MIRROR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
mirror.cz
531 ms
unslider.css
102 ms
unite-gallery.css
206 ms
style.css
208 ms
css
35 ms
jquery-2.1.4.min.js
12 ms
unslider-min.js
203 ms
unitegallery.min.js
384 ms
ug-theme-tiles.js
216 ms
euro_okna.jpg
216 ms
euro_dvere.jpg
308 ms
kastlova_okna.jpg
308 ms
parapety.jpg
307 ms
stavebni_cinnost.jpg
459 ms
201611220924-3586.jpg
703 ms
201611220939-6657.jpg
686 ms
201611220933-5347.JPG
783 ms
201611220935-7045.JPG
691 ms
bg_full.jpg
364 ms
fcb.jpg
283 ms
logo.png
384 ms
201701051038-7854.jpg
748 ms
201702221424-3861.jpg
763 ms
novinky_icon.png
572 ms
jizaRExUiTo99u79D0KEwA.ttf
24 ms
themes.gif
58 ms
hp_novinky_next.jpg
338 ms
hp_novinky_prev.jpg
352 ms
cover-grid.png
430 ms
loader-black3.gif
432 ms
play-button-square.png
436 ms
loader-black1.gif
457 ms
201611220924-3586.jpg
718 ms
201611220939-6657.jpg
724 ms
201611220935-7045.JPG
731 ms
mirror.cz accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
mirror.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
Browser errors were logged to the console
mirror.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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mirror.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 Mirror.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.
mirror.cz
Open Graph description is not detected on the main page of MIRROR. 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: