2.4 sec in total
883 ms
1.3 sec
231 ms
Visit grouplens.org now to see the best up-to-date Group Lens content for China and also check out these interesting facts you probably never knew about grouplens.org
Social Computing Research at the University of Minnesota
Visit grouplens.orgWe analyzed Grouplens.org page load time and found that the first response time was 883 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.
grouplens.org performance score
name
value
score
weighting
Value2.7 s
61/100
10%
Value3.1 s
75/100
25%
Value2.7 s
97/100
10%
Value30 ms
100/100
30%
Value0
100/100
15%
Value4.4 s
83/100
10%
883 ms
32 ms
55 ms
97 ms
25 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 61% of them (23 requests) were addressed to the original Grouplens.org, 8% (3 requests) were made to S.gravatar.com and 8% (3 requests) were made to Duckduckgo.com. The less responsive or slowest element that took the longest time to load (883 ms) belongs to the original domain Grouplens.org.
Page size can be reduced by 359.8 kB (23%)
1.6 MB
1.2 MB
In fact, the total size of Grouplens.org main page is 1.6 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. 55% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 12.8 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 12.8 kB or 67% of the original size.
Potential reduce by 113.6 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. Group Lens images are well optimized though.
Potential reduce by 93.9 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 93.9 kB or 62% of the original size.
Potential reduce by 139.5 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. Grouplens.org needs all CSS files to be minified and compressed as it can save up to 139.5 kB or 82% of the original size.
Number of requests can be reduced by 17 (49%)
35
18
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Group Lens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
grouplens.org
883 ms
wp-emoji-release.min.js
32 ms
screen.min.css
55 ms
main.min.css
97 ms
css
25 ms
jetpack.css
71 ms
default-styles.css
66 ms
jquery.min.js
34 ms
modernizr-2.6.2.min.js
67 ms
form.js
67 ms
front.min.js
79 ms
devicepx-jetpack.js
60 ms
gprofiles.js
60 ms
wpgroho.js
90 ms
scripts.min.js
155 ms
wp-embed.min.js
158 ms
e-201609.js
4 ms
search.html
127 ms
logo-161.png
116 ms
fig-screenshot-tuner-no-highlight-e1443104695986.png
238 ms
enwp-frontpage.png
217 ms
ml-logo.png
115 ms
cyclopath.png
116 ms
lenskit.png
116 ms
joe.jpg
140 ms
loren.jpg
163 ms
brent.jpg
117 ms
lana.jpg
141 ms
haiyi-300x300.jpg
159 ms
2Q-AW1e_taO6pHwMXcXW5w.ttf
112 ms
0ihfXUL2emPh0ROJezvraKCWcynf_cDxXwCLxiixG1c.ttf
113 ms
analytics.js
106 ms
hovercard.css
42 ms
services.css
56 ms
logo_icon60.v101.png
11 ms
search_dropdown_homepage.v102.png
12 ms
g.gif
32 ms
collect
12 ms
grouplens.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.
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
grouplens.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
grouplens.org 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
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 Grouplens.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 Grouplens.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.
grouplens.org
Open Graph data is detected on the main page of Group Lens. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: