1.3 sec in total
347 ms
887 ms
115 ms
Welcome to rybkachess.com homepage info - get ready to check Rybka Chess best content for Russia right away, or after learning these important things about rybkachess.com
Rybka is a UCI chess engine programmed by International Master Vasik Rajlich. Rybka is the chess engine being used for analysis by most top grandmasters. Garry Kasparov on Rybka: 'Rybka is a phenomena...
Visit rybkachess.comWe analyzed Rybkachess.com page load time and found that the first response time was 347 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
rybkachess.com performance score
name
value
score
weighting
Value0.8 s
100/100
10%
Value2.7 s
85/100
25%
Value1.1 s
100/100
10%
Value20 ms
100/100
30%
Value0.003
100/100
15%
Value0.8 s
100/100
10%
347 ms
92 ms
180 ms
181 ms
181 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Rybkachess.com and no external sources were called. The less responsive or slowest element that took the longest time to load (441 ms) belongs to the original domain Rybkachess.com.
Page size can be reduced by 39.0 kB (21%)
186.5 kB
147.5 kB
In fact, the total size of Rybkachess.com main page is 186.5 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. Only 10% of websites need less resources to load. Images take 172.0 kB which makes up the majority of the site volume.
Potential reduce by 8.1 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 8.1 kB or 77% of the original size.
Potential reduce by 27.6 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. Obviously, Rybka Chess needs image optimization as it can save up to 27.6 kB 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 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. Rybkachess.com needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 81% of the original size.
Number of requests can be reduced by 8 (32%)
25
17
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rybka Chess. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
rybkachess.com
347 ms
rybka.css
92 ms
logo.gif
180 ms
d.jpeg
181 ms
3b.jpg
181 ms
Banner1.png
271 ms
GambitLines.png
366 ms
worlds-best-UCI-chess-engine-UCI-chess.jpg
184 ms
strongest-software-for-UCI-engine-chess-software-chess.jpg
268 ms
chess-software-engine-rybka-chess-software.jpg
269 ms
aforum.jpg
270 ms
bg.png
180 ms
obenb.png
263 ms
top.png
352 ms
rybkar.gif
264 ms
balkenl.png
264 ms
gitter3.png
271 ms
detail2.png
352 ms
links.jpg
353 ms
c3.png
353 ms
c1a.png
360 ms
c1b.gif
362 ms
detail3.png
440 ms
gitter2.png
441 ms
best-uci-engine-strongest-chess-software.png
441 ms
detail1.gif
441 ms
rybkachess.com 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.
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
Form elements do not have associated labels
rybkachess.com 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
rybkachess.com SEO score
EN
EN
ISO-8859-15
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rybkachess.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Rybkachess.com main page’s claimed encoding is iso-8859-15. 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.
rybkachess.com
Open Graph description is not detected on the main page of Rybka Chess. 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: