5.1 sec in total
345 ms
4.2 sec
483 ms
Click here to check amazing Class Do content for United States. Otherwise, check out these important facts you probably never knew about classdo.com
ClassDo is an award-winning one-stop platform for you to deliver participatory and personalised learning effectively anywhere
Visit classdo.comWe analyzed Classdo.com page load time and found that the first response time was 345 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
classdo.com performance score
name
value
score
weighting
Value4.3 s
18/100
10%
Value5.0 s
26/100
25%
Value10.7 s
7/100
10%
Value780 ms
38/100
30%
Value0.025
100/100
15%
Value18.9 s
3/100
10%
345 ms
606 ms
151 ms
310 ms
732 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 56% of them (25 requests) were addressed to the original Classdo.com, 9% (4 requests) were made to Js.intercomcdn.com and 7% (3 requests) were made to Api.segment.io. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Classdo.com.
Page size can be reduced by 927.2 kB (56%)
1.7 MB
734.8 kB
In fact, the total size of Classdo.com main page is 1.7 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. 50% of websites need less resources to load. Javascripts take 640.2 kB which makes up the majority of the site volume.
Potential reduce by 205.1 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 205.1 kB or 78% of the original size.
Potential reduce by 28.5 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. Class Do images are well optimized though.
Potential reduce by 435.1 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 435.1 kB or 68% of the original size.
Potential reduce by 258.5 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. Classdo.com needs all CSS files to be minified and compressed as it can save up to 258.5 kB or 84% of the original size.
Number of requests can be reduced by 8 (24%)
34
26
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Class Do. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
classdo.com
345 ms
classdo.com
606 ms
en
151 ms
student
310 ms
application-ce1d6f1dabbf1a5588292bfd71873b909353a2a78a2cc7e5e52fe199893e5eb8.css
732 ms
application-12496d0fc5a904b86973226e0c64f5d13e391ac0e5c987765be93efb876a8a11.js
1459 ms
analytics.min.js
332 ms
logo_header_white-fadbe2e578aa4feaff48fde92cced7bb53204eae30c3ec51c6dbd4e9763e3aa3.png
165 ms
ClassDo_student_temptop-3e1f5e8fe9077c8c1645cb89a426042fbb53a8ad5ac3bfb8ddfbf36057578e01.jpg
325 ms
ClassDo_student-7b16df2aa917abce391a2a421c18848334793dc1460e0d35b2e35e1c1c7b5834.png
561 ms
step1both.en-2f8ee5be4acfcafbbd7012a57548cc64a8eeb2c5043861a395a506a11b2d4b2f.jpg
906 ms
step2student.en-1d38c9a07f6eb94e051675a51b4e1f9fb148a1767d485cda0137bb78a738c615.jpg
788 ms
step3both.en-1bebd6356e2b135d1375ab8e0a96b63b99fb10db63936ff6e39b8c3d3f967d32.jpg
907 ms
step4student.en-b082ddda66951904a6dc89377c6fc2cebe2d074394968545ab716b619853ef6f.jpg
787 ms
2-5d87288292458e1be736fcc03398877cbc6bbe40566fac7c4bc2471ac2498ea1.jpg
560 ms
3-306b37c003fd6cb5836fe0ab5c1cf914f56161bd3416d35d575ca0f497b1c192.jpg
614 ms
4-076123f4a85699d3bca381183b0a24305fb2bf674a84dd9f01220d6dc4e51048.jpg
618 ms
1-512b01796aabf514758a4ae5d7777474e8c0c1ec075a4870cb03b44b6cc05bd7.jpg
786 ms
classdo_student_promo-ceafbe867d58166e56a72407d01f91a7664eb8deba0f529113ea382b409072a3.jpg
787 ms
logo_footer-9c21f742e94c81a51da1994817d44d539c90be413c20be56dd2043f37e0d2dae.png
906 ms
Canaro-Light-50c058ecf46deeab7281a1ab4b15c1a207ff9b62b3ec307b40c3cb99348167d4.otf
1196 ms
Canaro-Medium-02dc003d66de8d882d3408c3f27377d7ce7062fac823670f785d5c49ebfa1c2b.otf
1205 ms
Canaro-Bold-ad869fb4841687fbc2a50037cc60e8ee9145ee0ae86efccceb36ebd9e98dce5a.otf
924 ms
Simple-Line-Icons-f6f562666a73dd0b908ca0a1b522473a5b4f1bc25caa3aa9be09c9f114abdfa2.ttf
1047 ms
icomoon-a8fb6570537ffec796b2671bb051149be69a68a237ba755b8e29b04ddff78d28.ttf
1049 ms
glyphicons-halflings-regular-a26394f7ede100ca118eff2eda08596275a9839b959c226e15439557a5a80742.woff
1050 ms
i
474 ms
p
475 ms
t
570 ms
amplitude-2.9.0-min.gz.js
56 ms
qbfdb6f9
99 ms
raven.min.js
98 ms
w.js
242 ms
api.amplitude.com
508 ms
intercom.ff24bba5.js
39 ms
echo.515e8809.js
21 ms
ping
171 ms
213 ms
212 ms
2015-07-12-12-25-02_deco.jpg
119 ms
icon-launcher-acquire.8a742481.png
20 ms
client-test
104 ms
client-test
89 ms
icon-preview-close.ec1a68fc.png
19 ms
api.amplitude.com
217 ms
classdo.com accessibility score
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
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
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
classdo.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
classdo.com 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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Classdo.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Classdo.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.
classdo.com
Open Graph description is not detected on the main page of Class Do. 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: