6.5 sec in total
83 ms
1.6 sec
4.8 sec
Visit k2datascience.com now to see the best up-to-date K2 Data Science content for United States and also check out these interesting facts you probably never knew about k2datascience.com
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Visit k2datascience.comWe analyzed K2datascience.com page load time and found that the first response time was 83 ms and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
k2datascience.com performance score
name
value
score
weighting
Value3.1 s
46/100
10%
Value8.6 s
1/100
25%
Value5.5 s
54/100
10%
Value1,970 ms
8/100
30%
Value0.009
100/100
15%
Value7.8 s
44/100
10%
83 ms
355 ms
99 ms
207 ms
201 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 74% of them (39 requests) were addressed to the original K2datascience.com, 6% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Stackpath.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (966 ms) belongs to the original domain K2datascience.com.
Page size can be reduced by 1.1 MB (19%)
5.8 MB
4.7 MB
In fact, the total size of K2datascience.com main page is 5.8 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. 70% of websites need less resources to load. Images take 5.7 MB which makes up the majority of the site volume.
Potential reduce by 43.0 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 18.2 kB, which is 35% 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 43.0 kB or 82% of the original size.
Potential reduce by 1.1 MB
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, K2 Data Science needs image optimization as it can save up to 1.1 MB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 82 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 9.0 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. K2datascience.com needs all CSS files to be minified and compressed as it can save up to 9.0 kB or 74% of the original size.
Number of requests can be reduced by 13 (27%)
48
35
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of K2 Data Science. 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 8 to 1 for CSS and as a result speed up the page load time.
k2datascience.com
83 ms
www.k2datascience.com
355 ms
bootstrap.min.css
99 ms
custom.css
207 ms
courses.css
201 ms
gradients.css
189 ms
padding.css
200 ms
internships.css
214 ms
site.js
252 ms
css
79 ms
css
108 ms
jquery-3.3.1.slim.min.js
82 ms
popper.min.js
106 ms
bootstrap.min.js
35 ms
js
175 ms
k2_blue_logo@3x.png
371 ms
ds-pipeline.png
317 ms
corporate-bunch.png
188 ms
cr-reviews.png
182 ms
student-outcomes.png
202 ms
video-lessons-lrg@3x.png
551 ms
ds-exercises@3x.png
658 ms
slack-community@3x.png
552 ms
mentor-trips@3x.png
664 ms
download-icon@3x.png
364 ms
democracy.jpg
484 ms
all_stations_schools.png
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pc2.png
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data-challenge.png
664 ms
discrete-200.png
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michael-nemke.png
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parable-200-v2.jpg
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gabriel-cypriano.png
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havenly-200.png
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christopher-mclaughlin.png
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mentor-based.png
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daniel-cardella.png
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william-ryan.png
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fidel-cuevas.png
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check_white.png
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benjamin-bertincourt.png
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nelson-colon.png
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samuel-turner.png
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michael-crown.png
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ross-blanchard.png
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ty-shaikh.png
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o-0NIpQlx3QUlC5A4PNjXhFVZNyE.ttf
164 ms
o-0IIpQlx3QUlC5A4PNr5TRF.ttf
179 ms
o-0OIpQlx3QUlC5A4PNr4ARCQ_w.ttf
281 ms
hotjar-967239.js
196 ms
analytics.js
87 ms
collect
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collect
40 ms
k2datascience.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.
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
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
k2datascience.com 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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
k2datascience.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise K2datascience.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 K2datascience.com 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.
k2datascience.com
Open Graph description is not detected on the main page of K2 Data Science. 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: