Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

e3s-conferences.org

E3S Web of Conferences

Page Load Speed

6.6 sec in total

First Response

191 ms

Resources Loaded

6.2 sec

Page Rendered

253 ms

e3s-conferences.org screenshot

About Website

Click here to check amazing E3S Conferences content for India. Otherwise, check out these important facts you probably never knew about e3s-conferences.org

E3S Web of Conferences, open access proceedings in environment, energy and earth sciences

Visit e3s-conferences.org

Key Findings

We analyzed E3s-conferences.org page load time and found that the first response time was 191 ms and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

e3s-conferences.org performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

e3s-conferences.org

191 ms

www.e3s-conferences.org

3419 ms

jquery.multiselect.css

29 ms

jquery-ui.css

57 ms

accueil.css

41 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 86% of them (43 requests) were addressed to the original E3s-conferences.org, 8% (4 requests) were made to Ajax.googleapis.com and 6% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain E3s-conferences.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 421.7 kB (46%)

Content Size

907.0 kB

After Optimization

485.3 kB

In fact, the total size of E3s-conferences.org main page is 907.0 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. 50% of websites need less resources to load. Images take 554.8 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 77.9 kB

  • Original 85.9 kB
  • After minification 62.8 kB
  • After compression 8.0 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. This page needs HTML code to be minified as it can gain 23.1 kB, which is 27% 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 77.9 kB or 91% of the original size.

Image Optimization

-29%

Potential reduce by 161.1 kB

  • Original 554.8 kB
  • After minification 393.8 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, E3S Conferences needs image optimization as it can save up to 161.1 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-62%

Potential reduce by 100.7 kB

  • Original 162.0 kB
  • After minification 139.2 kB
  • After compression 61.3 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 100.7 kB or 62% of the original size.

CSS Optimization

-79%

Potential reduce by 82.0 kB

  • Original 104.3 kB
  • After minification 90.4 kB
  • After compression 22.2 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. E3s-conferences.org needs all CSS files to be minified and compressed as it can save up to 82.0 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (48%)

Requests Now

48

After Optimization

25

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of E3S Conferences. 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 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

e3s-conferences.org accessibility score

92

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

e3s-conferences.org best practices score

83

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

Page has valid source maps

SEO Factors

e3s-conferences.org SEO score

91

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise E3s-conferences.org 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 E3s-conferences.org 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 E3S Conferences. 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: