5 sec in total
560 ms
4.2 sec
287 ms
Click here to check amazing Visu Algo content for China. Otherwise, check out these important facts you probably never knew about visualgo.net
VisuAlgo was conceptualised in 2011 by Dr Steven Halim as a tool to help his students better understand data structures and algorithms, by allowing them to learn the basics on their own and at their o...
Visit visualgo.netWe analyzed Visualgo.net page load time and found that the first response time was 560 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
visualgo.net performance score
name
value
score
weighting
Value1.5 s
95/100
10%
Value4.7 s
33/100
25%
Value2.4 s
98/100
10%
Value80 ms
99/100
30%
Value0.109
87/100
15%
Value3.5 s
92/100
10%
560 ms
253 ms
486 ms
505 ms
507 ms
Our browser made a total of 60 requests to load all elements on the main page. We found that 95% of them (57 requests) were addressed to the original Visualgo.net, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Visualgo.net.
Page size can be reduced by 228.2 kB (20%)
1.1 MB
914.4 kB
In fact, the total size of Visualgo.net main page is 1.1 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 898.8 kB which makes up the majority of the site volume.
Potential reduce by 60.6 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 60.6 kB or 82% of the original size.
Potential reduce by 55.6 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. Visu Algo images are well optimized though.
Potential reduce by 101.1 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 101.1 kB or 65% of the original size.
Potential reduce by 10.9 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. Visualgo.net needs all CSS files to be minified and compressed as it can save up to 10.9 kB or 81% of the original size.
Number of requests can be reduced by 4 (7%)
57
53
The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Visu Algo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.
visualgo.net
560 ms
normalize.css
253 ms
home.css
486 ms
common.css
505 ms
stylesheet.css
507 ms
local.css
508 ms
jquery-2.1.3.min.js
817 ms
common.js
586 ms
analytics.js
43 ms
arrow_white.png
253 ms
cp3.png
294 ms
blue.png
247 ms
kruskalprim_small.png
2151 ms
recursion_treedag_small.png
759 ms
favicon.png
257 ms
cross_white.png
488 ms
dummy.gif
504 ms
sorting.png
509 ms
bitmask.png
584 ms
list.png
729 ms
hashtable.png
753 ms
heap.png
761 ms
bst.png
876 ms
graphds.png
971 ms
ufds.png
1003 ms
segmenttree.png
1009 ms
fenwicktree.png
1013 ms
recursion.png
1166 ms
dfsbfs.png
1212 ms
mst.png
1502 ms
sssp.png
1260 ms
maxflow.png
1264 ms
matching.png
1457 ms
cyclefinding.png
1452 ms
suffixtree.png
1514 ms
suffixarray.png
1516 ms
geometry.png
1698 ms
slkscr-webfont.woff
1727 ms
collect
26 ms
sorting.gif
1675 ms
bitmask.gif
1685 ms
list.gif
1685 ms
hashtable.gif
1858 ms
heap.gif
1959 ms
bst.gif
1921 ms
graphds.gif
1937 ms
collect
64 ms
ufds.gif
1781 ms
segmenttree.gif
1939 ms
fenwicktree.gif
2006 ms
recursion.gif
1989 ms
dfsbfs.gif
1793 ms
mst.gif
1836 ms
sssp.gif
1910 ms
maxflow.gif
2088 ms
matching.gif
2034 ms
cyclefinding.gif
1780 ms
suffixtree.gif
1777 ms
suffixarray.gif
1870 ms
geometry.gif
1813 ms
visualgo.net 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.
visualgo.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
visualgo.net SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Visualgo.net 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 Visualgo.net 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.
visualgo.net
Open Graph description is not detected on the main page of Visu Algo. 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: