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icalendar.org screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

icalendar.org

iCalendar.org - iCalendar.org - iCalendar Resources, Specifications and Tools

Page Load Speed

664 ms in total

First Response

145 ms

Resources Loaded

400 ms

Page Rendered

119 ms

icalendar.org screenshot

About Website

Click here to check amazing ICalendar content for United States. Otherwise, check out these important facts you probably never knew about icalendar.org

This site is devoted to promoting the iCalendar standard, which includes specifications, resources, a validation tool and PHP library. iCalendar is an open stan

Visit icalendar.org

Key Findings

We analyzed Icalendar.org page load time and found that the first response time was 145 ms and then it took 519 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

icalendar.org performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.917

3/100

15%

TTI (Time to Interactive)

Value13.7 s

10/100

10%

Network Requests Diagram

icalendar.org

145 ms

bootstrap.min.css

25 ms

joomla-alert.min.css

33 ms

content.css

33 ms

joomla-fontawesome.css

46 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 94% of them (29 requests) were addressed to the original Icalendar.org, 3% (1 request) were made to Pagead2.googlesyndication.com and 3% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (145 ms) belongs to the original domain Icalendar.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.5 kB (8%)

Content Size

273.2 kB

After Optimization

252.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Icalendar.org main page is 273.2 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. 25% of websites need less resources to load. Javascripts take 156.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 14.5 kB

  • Original 21.8 kB
  • After minification 20.5 kB
  • After compression 7.3 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. 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 14.5 kB or 67% of the original size.

Image Optimization

-19%

Potential reduce by 3.8 kB

  • Original 20.5 kB
  • After minification 16.6 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, ICalendar needs image optimization as it can save up to 3.8 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 269 B

  • Original 156.0 kB
  • After minification 156.0 kB
  • After compression 155.8 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

-3%

Potential reduce by 1.9 kB

  • Original 74.8 kB
  • After minification 74.8 kB
  • After compression 73.0 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. Icalendar.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (87%)

Requests Now

30

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ICalendar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

icalendar.org

icalendar.org

145 ms

bootstrap.min.css

bootstrap.min.css

25 ms

joomla-alert.min.css

joomla-alert.min.css

33 ms

content.css

content.css

33 ms

joomla-fontawesome.css

joomla-fontawesome.css

46 ms

fontawesome.css

fontawesome.css

40 ms

brands.css

brands.css

35 ms

solid.css

solid.css

37 ms

template.css

template.css

36 ms

blue.css

blue.css

37 ms

custom.css

custom.css

44 ms

core.min.js

core.min.js

44 ms

bootstrap-es5.min.js

bootstrap-es5.min.js

112 ms

messages-es5.min.js

messages-es5.min.js

53 ms

alert.min.js

alert.min.js

53 ms

button.min.js

button.min.js

54 ms

carousel.min.js

carousel.min.js

54 ms

collapse.min.js

collapse.min.js

55 ms

dropdown.min.js

dropdown.min.js

57 ms

modal.min.js

modal.min.js

58 ms

offcanvas.min.js

offcanvas.min.js

60 ms

popover.min.js

popover.min.js

61 ms

scrollspy.min.js

scrollspy.min.js

62 ms

tab.min.js

tab.min.js

65 ms

toast.min.js

toast.min.js

67 ms

messages.min.js

messages.min.js

111 ms

template.js

template.js

68 ms

adsbygoogle.js

adsbygoogle.js

60 ms

analytics.js

analytics.js

47 ms

icalendar600.png

icalendar600.png

39 ms

calendars_200.jpg

calendars_200.jpg

40 ms

Accessibility Review

icalendar.org accessibility score

86

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.

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

icalendar.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Page has valid source maps

SEO Factors

icalendar.org SEO score

92

Search Engine Optimization Advices

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Icalendar.org 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 Icalendar.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

icalendar.org

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