767 ms in total
42 ms
562 ms
163 ms
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Codio is the evidence-based platform for high-quality computing education and tech skills development. Jump-start engagement, boost performance, save time.
Visit codio.comWe analyzed Codio.com page load time and found that the first response time was 42 ms and then it took 725 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
codio.com performance score
name
value
score
weighting
Value6.0 s
4/100
10%
Value6.2 s
12/100
25%
Value7.8 s
23/100
10%
Value13,650 ms
0/100
30%
Value0.054
98/100
15%
Value22.8 s
1/100
10%
42 ms
249 ms
129 ms
48 ms
68 ms
Our browser made a total of 24 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Codio.com, 33% (8 requests) were made to D2g7ua7d94r3fl.cloudfront.net and 29% (7 requests) were made to Fast.fonts.net. The less responsive or slowest element that took the longest time to load (249 ms) relates to the external source Connect.facebook.net.
Page size can be reduced by 184.1 kB (51%)
362.5 kB
178.4 kB
In fact, the total size of Codio.com main page is 362.5 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. 35% of websites need less resources to load. CSS take 198.3 kB which makes up the majority of the site volume.
Potential reduce by 5.9 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 5.9 kB or 66% of the original size.
Potential reduce by 0 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. Codio images are well optimized though.
Potential reduce by 90 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 178.0 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. Codio.com needs all CSS files to be minified and compressed as it can save up to 178.0 kB or 90% of the original size.
Number of requests can be reduced by 3 (21%)
14
11
The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Codio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
codio.com
42 ms
fbevents.js
249 ms
21a3910c-f5ae-441d-9be0-406da9f79901.css
129 ms
all-f52fe462.css
48 ms
all-4f532f96.js
68 ms
analytics.js
71 ms
logo-light-56f96ef2.svg
65 ms
atf-large-2b0a42a3.jpg
29 ms
partners-ocr-7050311f.png
26 ms
partners-cas-9bcd4b89.png
27 ms
partners-naace-4683e354.png
29 ms
logo-dark-ddc1f3fb.svg
26 ms
c6336333-577d-452e-a925-a3a69935c6ec.woff
35 ms
e9d28aa4-8570-45f8-b3d9-0344ea5c9d22.woff
70 ms
050c2cbf-b818-4b8e-b6d2-71b70478bd9d.woff
102 ms
9362bca5-b362-4543-a051-2129e2def911.woff
129 ms
4f2d0548-c7dc-459b-a2e0-e86656a10ded.woff
142 ms
f74a4823-b1ad-4887-9f8e-b02719f2972b.woff
142 ms
collect
14 ms
112 ms
collect
73 ms
ga-audiences
45 ms
ee8711023afa04b80a6b921ddb3939c1171e0f62
41 ms
intercom.c5a1eeb5.js
28 ms
codio.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.
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
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
codio.com 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
Browser errors were logged to the console
Page has valid source maps
codio.com 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
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 Codio.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 Codio.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.
codio.com
Open Graph description is not detected on the main page of Codio. 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: