Access arcseminar.eventzilla.net. noevent

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value18,380 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value28.6 s

0/100

10%

arcseminar.eventzilla.net

16 ms

arcseminar.eventzilla.net

46 ms

default.aspx

17 ms

noevent

12 ms

noevent

47 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 10% of them (3 requests) were addressed to the original Arcseminar.eventzilla.net, 17% (5 requests) were made to D2poexpdc5y9vj.cloudfront.net and 10% (3 requests) were made to Cdn.iubenda.com. The less responsive or slowest element that took the longest time to load (717 ms) relates to the external source Usetiful.com.

Content Size

238.1 kB

After Optimization

159.8 kB

In fact, the total size of Arcseminar.eventzilla.net main page is 238.1 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. 40% of websites need less resources to load. Images take 183.2 kB which makes up the majority of the site volume.

HTML Optimization

-58%

Potential reduce by 4.7 kB

Original 8.0 kB
After minification 7.6 kB
After compression 3.4 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 4.7 kB or 58% of the original size.

Image Optimization

-40%

Potential reduce by 73.1 kB

Original 183.2 kB
After minification 110.0 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, Arcseminar Eventzilla needs image optimization as it can save up to 73.1 kB or 40% 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 171 B

Original 44.2 kB
After minification 44.2 kB
After compression 44.1 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

-10%

Potential reduce by 268 B

Original 2.7 kB
After minification 2.7 kB
After compression 2.4 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. Arcseminar.eventzilla.net has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Arcseminar Eventzilla. 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 as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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

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

High

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

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

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Arcseminar.eventzilla.net 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 Arcseminar.eventzilla.net 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 Arcseminar Eventzilla. 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: