637 ms in total
76 ms
297 ms
264 ms
Click here to check amazing Rascal Columbia content for United States. Otherwise, check out these important facts you probably never knew about rascal.columbia.edu
Visit rascal.columbia.eduWe analyzed Rascal.columbia.edu page load time and found that the first response time was 76 ms and then it took 561 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.
rascal.columbia.edu performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value12.9 s
0/100
25%
Value3.2 s
92/100
10%
Value150 ms
94/100
30%
Value0.027
100/100
15%
Value9.8 s
28/100
10%
76 ms
83 ms
17 ms
27 ms
31 ms
Our browser made a total of 18 requests to load all elements on the main page. We found that 94% of them (17 requests) were addressed to the original Rascal.columbia.edu, 6% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (83 ms) belongs to the original domain Rascal.columbia.edu.
Page size can be reduced by 14.6 kB (36%)
40.2 kB
25.6 kB
In fact, the total size of Rascal.columbia.edu main page is 40.2 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. Only 10% of websites need less resources to load. Javascripts take 21.0 kB which makes up the majority of the site volume.
Potential reduce by 14.6 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 14.6 kB or 76% of the original size.
Potential reduce by 50 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.
We found no issues to fix!
16
16
The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rascal Columbia. According to our analytics all requests are already optimized.
rascal.columbia.edu
76 ms
rascal.columbia.edu
83 ms
rascal.css
17 ms
RSCL_menu.css
27 ms
RSCL_list.css
31 ms
list.js
34 ms
notice.js
32 ms
analytics.js
77 ms
bg.gif
20 ms
RSCL_home.jpg
50 ms
blank.gif
16 ms
btn01.jpg
19 ms
btn02.jpg
40 ms
btn03.jpg
40 ms
btn04.jpg
25 ms
secret.gif
27 ms
bg_list.jpg
28 ms
btnLOG.jpg
47 ms
rascal.columbia.edu accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
rascal.columbia.edu 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
Page has valid source maps
rascal.columbia.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rascal.columbia.edu 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 Rascal.columbia.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
rascal.columbia.edu
Open Graph description is not detected on the main page of Rascal Columbia. 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: