2.9 sec in total
731 ms
1.8 sec
275 ms
Welcome to cdl.org homepage info - get ready to check Cdl best content for United States right away, or after learning these important things about cdl.org
The Center for Literacy and Learning is a results driven nonprofit organization. We specialize in the development of leading-edge scientific research, knowledge, & best practices that improve teaching...
Visit cdl.orgWe analyzed Cdl.org page load time and found that the first response time was 731 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
cdl.org performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value11.6 s
0/100
25%
Value5.2 s
59/100
10%
Value100 ms
98/100
30%
Value0.506
16/100
15%
Value7.9 s
44/100
10%
731 ms
46 ms
49 ms
47 ms
87 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 80% of them (47 requests) were addressed to the original Cdl.org, 10% (6 requests) were made to Google-analytics.com and 3% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (731 ms) belongs to the original domain Cdl.org.
Page size can be reduced by 754.8 kB (52%)
1.5 MB
702.2 kB
In fact, the total size of Cdl.org main page is 1.5 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. 60% of websites need less resources to load. Javascripts take 803.4 kB which makes up the majority of the site volume.
Potential reduce by 67.3 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 67.3 kB or 73% of the original size.
Potential reduce by 11.6 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. Cdl images are well optimized though.
Potential reduce by 530.4 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 530.4 kB or 66% of the original size.
Potential reduce by 145.5 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. Cdl.org needs all CSS files to be minified and compressed as it can save up to 145.5 kB or 82% of the original size.
Number of requests can be reduced by 45 (78%)
58
13
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdl. 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 15 to 1 for CSS and as a result speed up the page load time.
www.cdl.org
731 ms
style.css
46 ms
grid.css
49 ms
base.css
47 ms
layout.css
87 ms
slideshow.css
50 ms
shortcodes.css
69 ms
prettyPhoto.css
89 ms
style.css
66 ms
woocommerce-mod.css
125 ms
colorbox.css
121 ms
styles.css
122 ms
wpgmza_style.css
122 ms
jquery.js
179 ms
jquery-migrate.min.js
138 ms
jquery.colorbox-min.js
138 ms
custom.js
140 ms
projekktor.min.js
197 ms
avia.js
204 ms
css
24 ms
custom.css
86 ms
addthis_widget.js
37 ms
wp-emoji-release.min.js
46 ms
output.css
28 ms
woocommerce-mod.js
107 ms
jquery.prettyPhoto.js
106 ms
adaptavia.js
109 ms
comment-reply.min.js
106 ms
jquery.blockUI.min.js
105 ms
woocommerce.min.js
106 ms
jquery.cookie.min.js
105 ms
cart-fragments.min.js
107 ms
wp-embed.min.js
106 ms
ga.js
30 ms
download-pdf-gold_155.png
312 ms
pageBG.gif
304 ms
icon-cart.png
303 ms
CDL_horizontallogo_300.png
302 ms
loading.gif
304 ms
PTVideoslider2-930x320.jpg
310 ms
cdl_slider1.jpg
305 ms
CCSSbooklet_slider-new-1-930x320.jpg
311 ms
slider_930-2.jpg
313 ms
color-bar_new-4.8.15.jpg
306 ms
pt_gold_56.png
305 ms
icon-search.png
307 ms
icon-mail.png
307 ms
icon-twitter.png
309 ms
icon-facebook.png
309 ms
icon-rss.png
310 ms
printfriendly.js
251 ms
analytics.js
236 ms
__utm.gif
99 ms
__utm.gif
97 ms
overlay.png
99 ms
collect
14 ms
300lo.json
104 ms
collect
4 ms
sh.8e5f85691f9aaa082472a194.html
78 ms
cdl.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.
cdl.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
Page has valid source maps
cdl.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
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 Cdl.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 Cdl.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.
cdl.org
Open Graph description is not detected on the main page of Cdl. 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: