4 sec in total
439 ms
3.3 sec
312 ms
Visit isrn.it now to see the best up-to-date ISRN content and also check out these interesting facts you probably never knew about isrn.it
Visit isrn.itWe analyzed Isrn.it page load time and found that the first response time was 439 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
isrn.it performance score
name
value
score
weighting
Value7.0 s
1/100
10%
Value8.3 s
2/100
25%
Value15.9 s
0/100
10%
Value990 ms
27/100
30%
Value0.666
8/100
15%
Value19.7 s
2/100
10%
439 ms
1523 ms
227 ms
228 ms
228 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 83% of them (39 requests) were addressed to the original Isrn.it, 6% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Isrn.it.
Page size can be reduced by 357.6 kB (45%)
797.2 kB
439.6 kB
In fact, the total size of Isrn.it main page is 797.2 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. 40% of websites need less resources to load. Images take 510.4 kB which makes up the majority of the site volume.
Potential reduce by 41.1 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 41.1 kB or 78% of the original size.
Potential reduce by 147.9 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, ISRN needs image optimization as it can save up to 147.9 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 122.1 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 122.1 kB or 69% of the original size.
Potential reduce by 46.4 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. Isrn.it needs all CSS files to be minified and compressed as it can save up to 46.4 kB or 83% of the original size.
Number of requests can be reduced by 17 (40%)
42
25
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISRN. 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.
isrn.it
439 ms
www.isrn.it
1523 ms
style.css
227 ms
validationEngine.jquery.css
228 ms
front.css
228 ms
thickbox.css
222 ms
css
27 ms
smc_front.css
229 ms
jquery.js
645 ms
jquery-migrate.min.js
332 ms
front.js
300 ms
itro-scripts.js
300 ms
superfish.js
296 ms
selectnav.min.js
299 ms
jquery.flexslider-min.js
508 ms
scripts.js
404 ms
thickbox.js
243 ms
wp-embed.min.js
244 ms
style.css
431 ms
wp-emoji-release.min.js
255 ms
LOGO-ISRN.png
124 ms
informatica.jpg
181 ms
7-plafo-02-italia-960x350.jpg
397 ms
appunti-promemoria-480x350.jpg
356 ms
Ponte-di-Mostar-650x435-650x350.jpg
387 ms
mostra-giorno-della-memoria2015-300x160.jpg
356 ms
pietre-300x160.jpg
403 ms
filmatobecky-300x160.jpg
357 ms
informatica-100x60.jpg
387 ms
7-plafo-02-italia-100x60.jpg
575 ms
appunti-promemoria-100x60.jpg
535 ms
fcrt-logo-little.png
481 ms
x.gif
486 ms
facebook.png
506 ms
youtube.png
719 ms
rss.png
696 ms
close-icon.png
609 ms
all.js
352 ms
sprite-contact-icons-white.png
591 ms
cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf
31 ms
MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf
31 ms
k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf
30 ms
back-featured-480.png
525 ms
loadingAnimation.gif
566 ms
237 ms
xd_arbiter.php
212 ms
xd_arbiter.php
419 ms
isrn.it 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.
isrn.it 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
isrn.it SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
IT
IT
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isrn.it can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and it matches the claimed language. Our system also found out that Isrn.it 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.
isrn.it
Open Graph description is not detected on the main page of ISRN. 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: