Tools & Wizards About Us
isic-reservation.epfl.ch screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    95% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

isic-reservation.epfl.ch

Login for the service ISIC Reservation website

Page Load Speed

2.6 sec in total

First Response

498 ms

Resources Loaded

1.9 sec

Page Rendered

278 ms

isic-reservation.epfl.ch screenshot

About Website

Click here to check amazing ISIC Reservation Epfl content for Switzerland. Otherwise, check out these important facts you probably never knew about isic-reservation.epfl.ch

Visit isic-reservation.epfl.ch

Key Findings

We analyzed Isic-reservation.epfl.ch page load time and found that the first response time was 498 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

isic-reservation.epfl.ch performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

97/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

isic-reservation.epfl.ch

498 ms

grr

185 ms

day.php

933 ms

style.css

190 ms

admin_grr.css

188 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Isic-reservation.epfl.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (933 ms) belongs to the original domain Isic-reservation.epfl.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.7 kB (75%)

Content Size

22.2 kB

After Optimization

5.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isic-reservation.epfl.ch main page is 22.2 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 13.5 kB which makes up the majority of the site volume.

HTML Optimization

-27%

Potential reduce by 89 B

  • Original 332 B
  • After minification 327 B
  • After compression 243 B

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 89 B or 27% of the original size.

Image Optimization

-0%

Potential reduce by 3 B

  • Original 1.2 kB
  • After minification 1.2 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. ISIC Reservation Epfl images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 10.6 kB

  • Original 13.5 kB
  • After minification 8.4 kB
  • After compression 2.9 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 10.6 kB or 79% of the original size.

CSS Optimization

-83%

Potential reduce by 6.0 kB

  • Original 7.2 kB
  • After minification 3.8 kB
  • After compression 1.2 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. Isic-reservation.epfl.ch needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISIC Reservation Epfl. According to our analytics all requests are already optimized.

Network Requests Diagram

isic-reservation.epfl.ch

isic-reservation.epfl.ch

498 ms

grr

grr

185 ms

day.php

day.php

933 ms

style.css

style.css

190 ms

admin_grr.css

admin_grr.css

188 ms

functions.js

functions.js

187 ms

clock_fr.js

clock_fr.js

188 ms

details.png

details.png

201 ms

Accessibility Review

isic-reservation.epfl.ch accessibility score

84

Accessibility Issues

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

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

Best Practices

isic-reservation.epfl.ch best practices score

85

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

isic-reservation.epfl.ch SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isic-reservation.epfl.ch can be misinterpreted by Google and other search engines. Our service has detected that English 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 Isic-reservation.epfl.ch main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

isic-reservation.epfl.ch

Open Graph description is not detected on the main page of ISIC Reservation Epfl. 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: