3.1 sec in total
434 ms
2.2 sec
413 ms
Click here to check amazing Reef content for Czech Republic. Otherwise, check out these important facts you probably never knew about reef.sk
Visit reef.skWe analyzed Reef.sk page load time and found that the first response time was 434 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
reef.sk performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value3.4 s
67/100
25%
Value5.3 s
59/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value3.8 s
89/100
10%
434 ms
886 ms
341 ms
342 ms
340 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that all of those requests were addressed to Reef.sk and no external sources were called. The less responsive or slowest element that took the longest time to load (886 ms) belongs to the original domain Reef.sk.
Page size can be reduced by 381.5 kB (80%)
475.6 kB
94.1 kB
In fact, the total size of Reef.sk main page is 475.6 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. 20% of websites need less resources to load. Javascripts take 189.3 kB which makes up the majority of the site volume.
Potential reduce by 129.5 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 33.3 kB, which is 23% 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 129.5 kB or 90% of the original size.
Potential reduce by 492 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. Obviously, Reef needs image optimization as it can save up to 492 B or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 139.3 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 139.3 kB or 74% of the original size.
Potential reduce by 112.2 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. Reef.sk needs all CSS files to be minified and compressed as it can save up to 112.2 kB or 80% of the original size.
Number of requests can be reduced by 22 (71%)
31
9
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Reef. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.
reef.sk
434 ms
reef.sk
886 ms
normalize.css
341 ms
base.css
342 ms
utilities.css
340 ms
common.css
449 ms
links.css
356 ms
content.css
437 ms
buttons.css
452 ms
cp.css
471 ms
forms.css
469 ms
icons.css
471 ms
colours.css
553 ms
responsive.css
567 ms
font-awesome.min.css
679 ms
stylesheet.css
599 ms
stylesheet.css
614 ms
phpbbads.css
587 ms
lightbox.min.css
668 ms
jquery-3.6.0.min.js
481 ms
core.js
599 ms
clicks.js
430 ms
forum_fn.js
520 ms
ajax.js
468 ms
resizer.js
472 ms
lightbox.min.js
516 ms
site_logo.svg
202 ms
forum_read.gif
220 ms
icon_smile.gif
271 ms
fontawesome-webfont.woff
443 ms
prev.png
134 ms
next.png
128 ms
loading.gif
135 ms
close.png
137 ms
reef.sk accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
reef.sk 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
Page has valid source maps
reef.sk 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 doesn't use legible font sizes
Tap targets are not sized appropriately
SK
SK
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Reef.sk can be misinterpreted by Google and other search engines. Our service has detected that Slovak is used on the page, and it matches the claimed language. Our system also found out that Reef.sk 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.
reef.sk
Open Graph description is not detected on the main page of Reef. 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: