1.6 sec in total
249 ms
1.2 sec
157 ms
Visit community.isa.nl now to see the best up-to-date Community ISA content for Netherlands and also check out these interesting facts you probably never knew about community.isa.nl
Member Login - International School of Amsterdam
Visit community.isa.nlWe analyzed Community.isa.nl page load time and found that the first response time was 249 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
community.isa.nl performance score
name
value
score
weighting
Value2.2 s
78/100
10%
Value3.2 s
73/100
25%
Value3.4 s
90/100
10%
Value390 ms
69/100
30%
Value0
100/100
15%
Value3.3 s
93/100
10%
249 ms
116 ms
117 ms
152 ms
176 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 41% of them (9 requests) were addressed to the original Community.isa.nl, 32% (7 requests) were made to Securejs.finalsite.com and 9% (2 requests) were made to Securecss.finalsite.com. The less responsive or slowest element that took the longest time to load (249 ms) belongs to the original domain Community.isa.nl.
Page size can be reduced by 374.7 kB (71%)
526.3 kB
151.6 kB
In fact, the total size of Community.isa.nl main page is 526.3 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. 30% of websites need less resources to load. Javascripts take 394.0 kB which makes up the majority of the site volume.
Potential reduce by 16.5 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 16.5 kB or 70% of the original size.
Potential reduce by 38.5 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. Obviously, Community ISA needs image optimization as it can save up to 38.5 kB or 78% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 269.1 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 269.1 kB or 68% of the original size.
Potential reduce by 50.6 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. Community.isa.nl needs all CSS files to be minified and compressed as it can save up to 50.6 kB or 86% of the original size.
Number of requests can be reduced by 10 (48%)
21
11
The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Community ISA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
userlogin.cfm
249 ms
styles.cfm
116 ms
ss.css
117 ms
jquery.min.js
152 ms
fs_global.js
176 ms
jquery.ui.1.8rc3.css
182 ms
global_vars.js
149 ms
main_2013.css
181 ms
jquery.ui.min.js
181 ms
loginform.js
185 ms
flash_headers.js
123 ms
ga.js
119 ms
cornertrust.gif
165 ms
poweredBy.svg
51 ms
FS_ISAtopbanner_2013.png
94 ms
searchbutton_2013.png
140 ms
page_tools.png
92 ms
error.png
95 ms
ui-bg_flat_75_ffffff_40x100.png
28 ms
ui-icons_222222_256x240.png
39 ms
__utm.gif
18 ms
nr-885.min.js
96 ms
community.isa.nl 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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
community.isa.nl 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
community.isa.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
robots.txt is not valid
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
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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Community.isa.nl 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 Community.isa.nl 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.
community.isa.nl
Open Graph description is not detected on the main page of Community ISA. 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: