1.9 sec in total
131 ms
873 ms
884 ms
Click here to check amazing Cdn Kastatic content for Malaysia. Otherwise, check out these important facts you probably never knew about cdn.kastatic.org
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, wo...
Visit cdn.kastatic.orgWe analyzed Cdn.kastatic.org page load time and found that the first response time was 131 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
cdn.kastatic.org performance score
name
value
score
weighting
Value2.3 s
73/100
10%
Value14.4 s
0/100
25%
Value7.9 s
23/100
10%
Value5,610 ms
0/100
30%
Value0.028
100/100
15%
Value19.6 s
2/100
10%
131 ms
205 ms
238 ms
331 ms
318 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 94% of them (60 requests) were addressed to the original Cdn.kastatic.org, 3% (2 requests) were made to Googletagmanager.com and 2% (1 request) were made to Khanacademy.org. The less responsive or slowest element that took the longest time to load (389 ms) belongs to the original domain Cdn.kastatic.org.
Page size can be reduced by 210.5 kB (9%)
2.3 MB
2.1 MB
In fact, the total size of Cdn.kastatic.org main page is 2.3 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 207.1 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 207.1 kB or 87% of the original size.
Potential reduce by 39 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. Cdn Kastatic images are well optimized though.
Potential reduce by 191 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 3.1 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. Cdn.kastatic.org needs all CSS files to be minified and compressed as it can save up to 3.1 kB or 19% of the original size.
Number of requests can be reduced by 19 (34%)
56
37
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdn Kastatic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.
www.khanacademy.org
131 ms
analytics.js
205 ms
gtm.js
238 ms
webpack-dev.297054d8010bce5fb4e6.css
331 ms
student-entry.088b234232eb46986c8c.css
318 ms
header-entry.65c49e11cc8e7522c9a0.css
317 ms
runtime.ddf05d0088a3c012506b.js
341 ms
corelibs.03e18c61f4b9bfd4e159.js
364 ms
moment.fafc84393660fdd16237.js
360 ms
webpack-dev.e97a707766f20190632f.js
343 ms
shared-intl.2dd7de15841b41a51791.js
359 ms
shared.e8537238503aa322580c.js
357 ms
wonder-blocks.2d038dbec21b772854bb.js
360 ms
shared-components.18b082c7d457d3bfd2d9.js
342 ms
j~d6ac60fb.2b157e91bb6bfc11c7ca.js
360 ms
67L4.e18cbe52fecbcec2fbd3.js
370 ms
sat-mission-entry~~417810a9.71a55c278545f72baf50.js
364 ms
topicsa~7eb6fd7e.62c0347c4955ff4d9ae8.js
389 ms
page-pa~367f70e7.dc83f8ba8c95c734930d.js
372 ms
student-entry.600f212ede92a18cc3b8.js
373 ms
header-entry.2c669f486fbca8fe6151.js
388 ms
1zNw.a859171755b687d9ef1d.js
388 ms
app-entry.913367675a4526ac126f.js
386 ms
browser_firefox.png
388 ms
browser_edge.png
386 ms
browser_chrome.png
388 ms
js
143 ms
left-background.png
113 ms
right-background.png
113 ms
hero_student_collage_compressed.png
119 ms
personalized_learning_icon.png
113 ms
trusted_content_icon.png
115 ms
empower_teachers_icon.png
116 ms
graph_collage@2x.png
121 ms
faces_collage@2x.png
138 ms
laptop_collage@2x.png
118 ms
anjali-2.png
116 ms
math-unicorn-donate-collage.png
123 ms
bank-of-america-dark-gray@2x.png
124 ms
college-board-dark-gray@2x.png
121 ms
ann-and-john-doerr-dark-gray@2x.png
120 ms
gates-foundation-dark-gray@2x.png
129 ms
lemann-foundation-dark-gray@2x.png
124 ms
carlos-rodriguez-pastor-dark-gray@2x.png
123 ms
tata-trusts-dark-gray@2x.png
122 ms
valhalla-dark-gray@2x.png
110 ms
att-dark-gray@2x.png
110 ms
google-dark-gray@2x.png
123 ms
novartis-dark-gray@2x.png
111 ms
fastly-dark-gray@2x.png
111 ms
gm-dark-gray@2x.png
107 ms
adobe-dark-gray@2x.png
111 ms
us-flag.png
106 ms
india-flag.png
105 ms
mexico-flag.png
105 ms
brazil-flag.png
93 ms
LatoLatinExtended-Bold.woff2
96 ms
LatoLatinExtended-Black.woff2
91 ms
LatoLatinExtended-Regular.woff2
92 ms
NotoSerifHebrew-Regular.woff2
93 ms
NotoSerif-Regular.woff2
92 ms
NotoSerifArmenian-Regular.woff2
92 ms
NotoNaskhArabic-Regular.woff2
93 ms
last_chance_collage@2x.png
97 ms
cdn.kastatic.org 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.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
cdn.kastatic.org 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
Missing source maps for large first-party JavaScript
cdn.kastatic.org SEO score
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdn.kastatic.org 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 Cdn.kastatic.org 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.
cdn.kastatic.org
Open Graph data is detected on the main page of Cdn Kastatic. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: