Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

stuk.io

Learn how to code and create amazing Instagram followers & likes apps

Page Load Speed

2.8 sec in total

First Response

144 ms

Resources Loaded

2.3 sec

Page Rendered

339 ms

stuk.io screenshot

About Website

Welcome to stuk.io homepage info - get ready to check Stuk best content for Russia right away, or after learning these important things about stuk.io

Turn ideas into real Instagram apps. Learn step-by-step how to code apps that you can use to launch your next photo or video startup or create a great portfolio to get a job as web developer.

Visit stuk.io

Key Findings

We analyzed Stuk.io page load time and found that the first response time was 144 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

stuk.io performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.08

94/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

stuk.io

144 ms

www.codeplace.com

579 ms

braintree.js

206 ms

algoliasearch.min.js

130 ms

autocomplete.min.js

129 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Stuk.io, 42% (30 requests) were made to Codeplace.com and 8% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (608 ms) relates to the external source S3-us-west-2.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (64%)

Content Size

2.2 MB

After Optimization

779.5 kB

In fact, the total size of Stuk.io main page is 2.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Javascripts take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 39.9 kB

  • Original 59.4 kB
  • After minification 56.1 kB
  • After compression 19.5 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 39.9 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 186.4 kB
  • After minification 186.4 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. Stuk images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 1.0 MB

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 513.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.0 MB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 315.0 kB

  • Original 375.6 kB
  • After minification 374.4 kB
  • After compression 60.6 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. Stuk.io needs all CSS files to be minified and compressed as it can save up to 315.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (56%)

Requests Now

61

After Optimization

27

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stuk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

stuk.io accessibility score

95

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.

Best Practices

stuk.io best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

stuk.io SEO score

98

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stuk.io 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 Stuk.io 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 data is detected on the main page of Stuk. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: