Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

am.iitd.ac.in

Home | Department of Applied Mechanics IIT Delhi

Page Load Speed

4.9 sec in total

First Response

919 ms

Resources Loaded

3.8 sec

Page Rendered

162 ms

am.iitd.ac.in screenshot

About Website

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Key Findings

We analyzed Am.iitd.ac.in page load time and found that the first response time was 919 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

am.iitd.ac.in performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value4.2 s

85/100

10%

Network Requests Diagram

am.iitd.ac.in

919 ms

reset.css

225 ms

node.css

444 ms

defaults.css

444 ms

system.css

452 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that all of those requests were addressed to Am.iitd.ac.in and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Am.iitd.ac.in.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.6 kB (48%)

Content Size

419.5 kB

After Optimization

220.0 kB

In fact, the total size of Am.iitd.ac.in main page is 419.5 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 179.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 20.5 kB

  • Original 25.3 kB
  • After minification 19.7 kB
  • After compression 4.8 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. This page needs HTML code to be minified as it can gain 5.6 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 20.5 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 381 B

  • Original 144.6 kB
  • After minification 144.3 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. Am IIT D images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 124.0 kB

  • Original 179.1 kB
  • After minification 158.7 kB
  • After compression 55.1 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 124.0 kB or 69% of the original size.

CSS Optimization

-78%

Potential reduce by 54.6 kB

  • Original 70.5 kB
  • After minification 53.0 kB
  • After compression 15.8 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. Am.iitd.ac.in needs all CSS files to be minified and compressed as it can save up to 54.6 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (64%)

Requests Now

50

After Optimization

18

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Am IIT D. 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 19 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

am.iitd.ac.in accessibility score

91

Accessibility Issues

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.

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

Links do not have a discernible name

Best Practices

am.iitd.ac.in best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

am.iitd.ac.in SEO score

62

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Am.iitd.ac.in can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Am.iitd.ac.in 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 Am IIT D. 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: