1.7 sec in total
206 ms
1.3 sec
245 ms
Visit online.dr-chuck.com now to see the best up-to-date Online Dr Chuck content for United States and also check out these interesting facts you probably never knew about online.dr-chuck.com
Visit online.dr-chuck.comWe analyzed Online.dr-chuck.com page load time and found that the first response time was 206 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
online.dr-chuck.com performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value2.6 s
88/100
25%
Value4.8 s
67/100
10%
Value1,390 ms
16/100
30%
Value0
100/100
15%
Value9.6 s
29/100
10%
206 ms
152 ms
135 ms
85 ms
87 ms
Our browser made a total of 17 requests to load all elements on the main page. We found that 59% of them (10 requests) were addressed to the original Online.dr-chuck.com, 18% (3 requests) were made to Static.olark.com and 12% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (412 ms) relates to the external source En.gravatar.com.
Page size can be reduced by 192.5 kB (54%)
358.0 kB
165.5 kB
In fact, the total size of Online.dr-chuck.com main page is 358.0 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. 20% of websites need less resources to load. CSS take 169.2 kB which makes up the majority of the site volume.
Potential reduce by 7.7 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 1.4 kB, which is 11% 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 7.7 kB or 63% of the original size.
Potential reduce by 2.2 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. Online Dr Chuck images are well optimized though.
Potential reduce by 37.7 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 37.7 kB or 51% of the original size.
Potential reduce by 144.9 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. Online.dr-chuck.com needs all CSS files to be minified and compressed as it can save up to 144.9 kB or 86% of the original size.
Number of requests can be reduced by 8 (53%)
15
7
The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Dr Chuck. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
online.dr-chuck.com
206 ms
online.dr-chuck.com
152 ms
bootstrap.css
135 ms
bootstrap-responsive.css
85 ms
docs.css
87 ms
prettify.css
82 ms
jquery.min.js
146 ms
2d0a2f518066c5fd09d757a289b54307
412 ms
ga.js
65 ms
loader0.js
161 ms
glyphicons-halflings-white.png
113 ms
MOOCMap-8.jpg
209 ms
OpenBadges_Insignia_WeIssue.png
88 ms
__utm.gif
19 ms
1302-2115536-10-2739.js
28 ms
c
200 ms
application2.js
295 ms
online.dr-chuck.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
online.dr-chuck.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
online.dr-chuck.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 Online.dr-chuck.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 Online.dr-chuck.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.
online.dr-chuck.com
Open Graph description is not detected on the main page of Online Dr Chuck. 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: