Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

randi.io

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Page Load Speed

1.8 sec in total

First Response

191 ms

Resources Loaded

1.2 sec

Page Rendered

391 ms

randi.io screenshot

About Website

Click here to check amazing Randi content for United States. Otherwise, check out these important facts you probably never knew about randi.io

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Visit randi.io

Key Findings

We analyzed Randi.io page load time and found that the first response time was 191 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

randi.io performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.096

91/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

randi.io

191 ms

blog.randi.io

18 ms

blog.randi.io

277 ms

165 ms

css

114 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Randi.io, 14% (6 requests) were made to S0.wp.com and 12% (5 requests) were made to S1.wp.com. The less responsive or slowest element that took the longest time to load (419 ms) relates to the external source S2.wp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.4 kB (55%)

Content Size

747.8 kB

After Optimization

339.3 kB

In fact, the total size of Randi.io main page is 747.8 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. 55% of websites need less resources to load. Javascripts take 451.1 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 36.3 kB

  • Original 49.3 kB
  • After minification 47.6 kB
  • After compression 12.9 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 36.3 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 1.5 kB

  • Original 205.1 kB
  • After minification 203.7 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. Randi images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 338.3 kB

  • Original 451.1 kB
  • After minification 331.7 kB
  • After compression 112.8 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 338.3 kB or 75% of the original size.

CSS Optimization

-76%

Potential reduce by 32.3 kB

  • Original 42.3 kB
  • After minification 39.7 kB
  • After compression 10.0 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. Randi.io needs all CSS files to be minified and compressed as it can save up to 32.3 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (60%)

Requests Now

30

After Optimization

12

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Randi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

randi.io accessibility score

52

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

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

randi.io 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

SEO Factors

randi.io SEO score

83

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

    TH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Randi.io can be misinterpreted by Google and other search engines. Our service has detected that Thai is used on the page, and it does not match the claimed English language. Our system also found out that Randi.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 Randi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: