Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

Page Load Speed

2.3 sec in total

First Response

969 ms

Resources Loaded

1.2 sec

Page Rendered

156 ms

redcss.com screenshot

About Website

Click here to check amazing Redcss content. Otherwise, check out these important facts you probably never knew about redcss.com

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Key Findings

We analyzed Redcss.com page load time and found that the first response time was 969 ms and then it took 1.4 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

redcss.com performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value22.1 s

0/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.156

74/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

redcss.com

969 ms

px.js

65 ms

px.js

67 ms

caf.js

40 ms

newcafv2.js

7 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 25% of them (3 requests) were addressed to the original Redcss.com, 17% (2 requests) were made to D.rmgserving.com and 17% (2 requests) were made to Dp.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (969 ms) belongs to the original domain Redcss.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 36.1 kB (29%)

Content Size

122.4 kB

After Optimization

86.4 kB

In fact, the total size of Redcss.com main page is 122.4 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. 15% of websites need less resources to load. Javascripts take 66.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 18.2 kB

  • Original 25.3 kB
  • After minification 25.0 kB
  • After compression 7.1 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 18.2 kB or 72% of the original size.

Image Optimization

-29%

Potential reduce by 8.9 kB

  • Original 30.2 kB
  • After minification 21.4 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. Obviously, Redcss needs image optimization as it can save up to 8.9 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 9.0 kB

  • Original 66.9 kB
  • After minification 62.0 kB
  • After compression 57.9 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 9.0 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (27%)

Requests Now

11

After Optimization

8

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Redcss. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

redcss.com accessibility score

47

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

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

redcss.com best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

redcss.com SEO score

89

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    >

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Redcss.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Redcss.com main page’s claimed encoding is >. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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