1.4 sec in total
51 ms
1.1 sec
235 ms
Visit course-notes.org now to see the best up-to-date Course Notes content for India and also check out these interesting facts you probably never knew about course-notes.org
Visit course-notes.orgWe analyzed Course-notes.org page load time and found that the first response time was 51 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
course-notes.org performance score
name
value
score
weighting
Value1.6 s
95/100
10%
Value4.1 s
46/100
25%
Value24.9 s
0/100
10%
Value8,970 ms
0/100
30%
Value0.056
98/100
15%
Value41.9 s
0/100
10%
51 ms
181 ms
40 ms
92 ms
42 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 68% of them (38 requests) were addressed to the original Course-notes.org, 5% (3 requests) were made to Google-analytics.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (435 ms) relates to the external source Rum-static.pingdom.net.
Page size can be reduced by 87.8 kB (21%)
423.6 kB
335.8 kB
In fact, the total size of Course-notes.org main page is 423.6 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. 30% of websites need less resources to load. Javascripts take 157.3 kB which makes up the majority of the site volume.
Potential reduce by 65.2 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 65.2 kB or 78% of the original size.
Potential reduce by 6.3 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. Course Notes images are well optimized though.
Potential reduce by 16.2 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. This website has mostly compressed JavaScripts.
Potential reduce by 10 B
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. Course-notes.org has all CSS files already compressed.
Number of requests can be reduced by 31 (58%)
53
22
The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Course Notes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
course-notes.org
51 ms
course-notes.org
181 ms
css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css
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css_5Edpn3XkP5QNQ5yowi6lq4NH48leS23kZVCBJHuafCI.css
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respond.min.js
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pubfig.min.js
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course-notes.org 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
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.
course-notes.org 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
course-notes.org 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
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 Course-notes.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 Course-notes.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.
course-notes.org
Open Graph description is not detected on the main page of Course Notes. 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: