5.3 sec in total
1.4 sec
3.7 sec
240 ms
Welcome to lis.um.ac.ir homepage info - get ready to check Lis Um best content for Iran right away, or after learning these important things about lis.um.ac.ir
Ferdowsi University of Mashhad
Visit lis.um.ac.irWe analyzed Lis.um.ac.ir page load time and found that the first response time was 1.4 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
lis.um.ac.ir performance score
name
value
score
weighting
Value2.7 s
62/100
10%
Value2.7 s
86/100
25%
Value4.9 s
66/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value2.7 s
97/100
10%
1441 ms
451 ms
1660 ms
1451 ms
2453 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Lis.um.ac.ir and no external sources were called. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Lis.um.ac.ir.
Page size can be reduced by 119.0 kB (19%)
621.9 kB
502.9 kB
In fact, the total size of Lis.um.ac.ir main page is 621.9 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. 15% of websites need less resources to load. Images take 523.5 kB which makes up the majority of the site volume.
Potential reduce by 57.0 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 57.0 kB or 85% of the original size.
Potential reduce by 34.9 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. Lis Um images are well optimized though.
Potential reduce by 12.7 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 12.7 kB or 83% of the original size.
Potential reduce by 14.4 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. Lis.um.ac.ir needs all CSS files to be minified and compressed as it can save up to 14.4 kB or 88% of the original size.
Number of requests can be reduced by 8 (44%)
18
10
The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lis Um. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
lis.um.ac.ir
1441 ms
style.css
451 ms
header.jpg
1660 ms
transparent.png
1451 ms
down-arrow.png
2453 ms
lft_tr.gif
2460 ms
lft_tl.gif
671 ms
93307143.jpg
648 ms
lft_br.gif
864 ms
lft_bl.gif
864 ms
d.jpg
1855 ms
neshast.jpg
2311 ms
layersmenu-library.js
1460 ms
layersmenu.js
1667 ms
layerstreemenu-cookies.js
1672 ms
__________.jpg
2465 ms
bullet_r.gif
1609 ms
quadrato.gif
1617 ms
forward-arrow.png
1814 ms
lis.um.ac.ir accessibility score
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
Document doesn't have a <title> element
Image elements do not have [alt] attributes
lis.um.ac.ir 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
lis.um.ac.ir SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Document doesn't have a <title> element
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
FA
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lis.um.ac.ir can be misinterpreted by Google and other search engines. Our service has detected that Persian 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 Lis.um.ac.ir 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.
lis.um.ac.ir
Open Graph description is not detected on the main page of Lis Um. 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: