Tools & Wizards About Us
chemeng-ntua.gr screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

chemeng-ntua.gr

ChemEng NTUA - forum Χημικών Μηχανικών ΕΜΠ - Ευρετήριο

Page Load Speed

4 sec in total

First Response

365 ms

Resources Loaded

3.2 sec

Page Rendered

367 ms

chemeng-ntua.gr screenshot

About Website

Click here to check amazing Chem Eng NTUA content for Greece. Otherwise, check out these important facts you probably never knew about chemeng-ntua.gr

Ηλεκτρονική κοινότητα Χημικών Μηχανικών ΕΜΠ. Μια κοινότητα ανοιχτή σε όλους, ανεπίσημο forum συζητήσεων για τη Σχολή Χημικών Μηχανικών ΕΜΠ, μια βασική πύλη ενημέρωσης για τη Σχολή και μία σημαντική συ...

Visit chemeng-ntua.gr

Key Findings

We analyzed Chemeng-ntua.gr page load time and found that the first response time was 365 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

chemeng-ntua.gr performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.093

91/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

chemeng-ntua.gr

365 ms

forum.chemeng.ntua.gr

1161 ms

stylesheet.min.css

153 ms

css2

35 ms

all.css

37 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Chemeng-ntua.gr, 71% (27 requests) were made to Forum.chemeng.ntua.gr and 11% (4 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Forum.chemeng.ntua.gr.

Page Optimization Overview & Recommendations

Page size can be reduced by 197.9 kB (33%)

Content Size

599.9 kB

After Optimization

402.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemeng-ntua.gr main page is 599.9 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. 50% of websites need less resources to load. Images take 229.5 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 174.5 kB

  • Original 199.4 kB
  • After minification 173.3 kB
  • After compression 24.9 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 26.1 kB, which is 13% 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 174.5 kB or 88% of the original size.

Image Optimization

-9%

Potential reduce by 20.5 kB

  • Original 229.5 kB
  • After minification 208.9 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. Chem Eng NTUA images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 2.1 kB

  • Original 133.9 kB
  • After minification 133.8 kB
  • After compression 131.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 690 B

  • Original 37.2 kB
  • After minification 37.2 kB
  • After compression 36.5 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. Chemeng-ntua.gr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (71%)

Requests Now

28

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Eng NTUA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemeng-ntua.gr

chemeng-ntua.gr

365 ms

forum.chemeng.ntua.gr

forum.chemeng.ntua.gr

1161 ms

stylesheet.min.css

stylesheet.min.css

153 ms

css2

css2

35 ms

all.css

all.css

37 ms

perfect-scrollbar.css

perfect-scrollbar.css

297 ms

katex.min.css

katex.min.css

420 ms

colors.min.css

colors.min.css

422 ms

recenttopics.css

recenttopics.css

421 ms

boardannouncements.css

boardannouncements.css

420 ms

collapsiblecategories.css

collapsiblecategories.css

436 ms

custom.css

custom.css

500 ms

jquery.min.js

jquery.min.js

23 ms

core.min.js

core.min.js

639 ms

perfect-scrollbar.jquery.js

perfect-scrollbar.jquery.js

639 ms

katex.min.js

katex.min.js

853 ms

auto-render.min.js

auto-render.min.js

638 ms

recenttopics.js

recenttopics.js

639 ms

collapsiblecategories.js

collapsiblecategories.js

640 ms

boardannouncements.js

boardannouncements.js

764 ms

forum_fn.min.js

forum_fn.min.js

763 ms

ajax.min.js

ajax.min.js

764 ms

bootstrap.min.js

bootstrap.min.js

764 ms

chosen.jquery.min.js

chosen.jquery.min.js

765 ms

jquery.sticky.min.js

jquery.sticky.min.js

851 ms

ra_head_index_img_0.jpg

ra_head_index_img_0.jpg

1252 ms

heart.gif

heart.gif

852 ms

heart75.png

heart75.png

1008 ms

no_avatar.gif

no_avatar.gif

920 ms

site_logo.svg

site_logo.svg

482 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

32 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

34 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

118 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4k.woff

118 ms

fa-regular-400.woff

fa-regular-400.woff

12 ms

fa-solid-900.woff

fa-solid-900.woff

32 ms

fa-brands-400.woff

fa-brands-400.woff

30 ms

file.php

file.php

440 ms

Accessibility Review

chemeng-ntua.gr accessibility score

77

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

The document uses <meta http-equiv="refresh">

Best Practices

chemeng-ntua.gr 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

High

Browser errors were logged to the console

SEO Factors

chemeng-ntua.gr SEO score

79

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

    EL

  • Language Claimed

    EL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemeng-ntua.gr can be misinterpreted by Google and other search engines. Our service has detected that Greek is used on the page, and it matches the claimed language. Our system also found out that Chemeng-ntua.gr 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

chemeng-ntua.gr

Open Graph description is not detected on the main page of Chem Eng NTUA. 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: