Access slackin-itc.herokuapp.com. Join Irish Tech Community on Slack!

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value32.0 s

0/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

93/100

10%

slackin-itc.herokuapp.com

247 ms

374693882835_1e6801fd8dd2a92a7971_132.png

98 ms

socket.io-1.4.4.js

107 ms

superagent.js

160 ms

client.js

172 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 71% of them (5 requests) were addressed to the original Slackin-itc.herokuapp.com, 14% (1 request) were made to Avatars.slack-edge.com and 14% (1 request) were made to Cdn.socket.io. The less responsive or slowest element that took the longest time to load (247 ms) belongs to the original domain Slackin-itc.herokuapp.com.

Content Size

38.6 kB

After Optimization

6.8 kB

In fact, the total size of Slackin-itc.herokuapp.com main page is 38.6 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. 20% of websites need less resources to load. Javascripts take 33.7 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 2.9 kB

Original 4.9 kB
After minification 4.9 kB
After compression 2.0 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. 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 2.9 kB or 60% of the original size.

JavaScript Optimization

-86%

Potential reduce by 28.9 kB

Original 33.7 kB
After minification 15.6 kB
After compression 4.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 28.9 kB or 86% of the original size.

Requests Now

After Optimization

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

Accessibility Issues

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 the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

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 Slackin-itc.herokuapp.com 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 Slackin-itc.herokuapp.com 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 Slack Initc Herokuapp. 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: