Tools & Wizards About Us

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jsu.ac.ir

دانشگاه صنعتی جندی شاپور دزفول

Page Load Speed

16.1 sec in total

First Response

2.5 sec

Resources Loaded

13.4 sec

Page Rendered

182 ms

About Website

Click here to check amazing Jsu content for Iran. Otherwise, check out these important facts you probably never knew about jsu.ac.ir

جندی شاپور در شهر کهن و دانش گستر دزفول که در ادوار باستان پایتخت علوم

Visit jsu.ac.ir

Key Findings

We analyzed Jsu.ac.ir page load time and found that the first response time was 2.5 sec and then it took 13.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

jsu.ac.ir performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value17.7 s

0/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.783

5/100

15%

TTI (Time to Interactive)

Value37.6 s

0/100

10%

Network Requests Diagram

jsu.ac.ir

2482 ms

jquery.js

3622 ms

tabmenu.js

532 ms

highcmsaccording.js

817 ms

tabmenu55.css

557 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that all of those requests were addressed to Jsu.ac.ir and no external sources were called. The less responsive or slowest element that took the longest time to load (6.7 sec) belongs to the original domain Jsu.ac.ir.

Page Optimization Overview & Recommendations

Page size can be reduced by 753.5 kB (49%)

Content Size

1.5 MB

After Optimization

782.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jsu.ac.ir main page is 1.5 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. 25% of websites need less resources to load. Images take 821.1 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 393.1 kB

  • Original 431.2 kB
  • After minification 428.8 kB
  • After compression 38.1 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 393.1 kB or 91% of the original size.

Image Optimization

-20%

Potential reduce by 166.1 kB

  • Original 821.1 kB
  • After minification 655.1 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, Jsu needs image optimization as it can save up to 166.1 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 171.7 kB

  • Original 257.8 kB
  • After minification 251.6 kB
  • After compression 86.1 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 171.7 kB or 67% of the original size.

CSS Optimization

-88%

Potential reduce by 22.7 kB

  • Original 25.8 kB
  • After minification 18.2 kB
  • After compression 3.1 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. Jsu.ac.ir needs all CSS files to be minified and compressed as it can save up to 22.7 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (26%)

Requests Now

61

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jsu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jsu.ac.ir accessibility score

73

Accessibility Issues

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

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

jsu.ac.ir best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jsu.ac.ir SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    FA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jsu.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 Jsu.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Jsu. 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: