Access dguha.info. Debatosh Guha | Professor | Institute of radio physics and electronics, University of Calcutta

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value20.7 s

0/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.457

19/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

dguha.info

227 ms

www.dguha.info

454 ms

bootstrap.min.css

234 ms

owl.carousel.min.css

229 ms

magnific-popup.css

233 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 65% of them (58 requests) were addressed to the original Dguha.info, 26% (23 requests) were made to Fonts.gstatic.com and 9% (8 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (668 ms) belongs to the original domain Dguha.info.

Content Size

4.0 MB

After Optimization

3.0 MB

In fact, the total size of Dguha.info main page is 4.0 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 37.2 kB

Original 42.9 kB
After minification 26.7 kB
After compression 5.7 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 16.2 kB, which is 38% 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 37.2 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 344 B

Original 2.7 MB
After minification 2.7 MB

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. D Guha images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 418.0 kB

Original 571.4 kB
After minification 538.2 kB
After compression 153.5 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 418.0 kB or 73% of the original size.

CSS Optimization

-90%

Potential reduce by 548.0 kB

Original 609.9 kB
After minification 414.3 kB
After compression 61.8 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. Dguha.info needs all CSS files to be minified and compressed as it can save up to 548.0 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D Guha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

EN
Language Claimed

ZX
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dguha.info can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed language. Our system also found out that Dguha.info 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

dguha.info

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Debatosh Guha | Professor | Institute of radio physics and electronics, University of Calcutta

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

dguha.info

www.dguha.info

bootstrap.min.css

owl.carousel.min.css

magnific-popup.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

dguha.info

www.dguha.info

bootstrap.min.css

owl.carousel.min.css

magnific-popup.css

font-awesome.min.css

themify-icons.css

nice-select.css

flaticon.css

gijgo.css

animate.css

slicknav.css

style.css

css2

GUHA-SIR-LOGO-1.png

D-GUHA-IMAGE-1.jpg

ieee-logo-80X80.jpg

APS-LOGO-80X80.jpg

new-book-80X80.jpg

dg-img-80X80-new.jpg

IEICE-Annual-Conference-2024.jpg

D-GUHA-IMAGE-4.jpg

D-GUHA-IMAGE-2.jpg

D-GUHA-IMAGE-3.jpg

D-GUHA-IMAGE-5.jpg

modernizr-3.5.0.min.js

jquery-1.12.4.min.js

popper.min.js

bootstrap.min.js

owl.carousel.min.js

isotope.pkgd.min.js

ajax-form.js

waypoints.min.js

jquery.counterup.min.js

imagesloaded.pkgd.min.js

scrollIt.js

jquery.scrollUp.min.js

wow.min.js

nice-select.min.js

jquery.slicknav.min.js

jquery.magnific-popup.min.js

plugins.js

gijgo.min.js