Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

rainbowresource.com

Rainbow Resource

Page Load Speed

32.2 sec in total

First Response

723 ms

Resources Loaded

17.8 sec

Page Rendered

13.7 sec

rainbowresource.com screenshot

About Website

Click here to check amazing Rainbow Resource content for United States. Otherwise, check out these important facts you probably never knew about rainbowresource.com

We offer over 40,000 homeschooling and educational products at discount prices, while providing friendly customer service and homeschool consultants to answer your curriculum questions.

Visit rainbowresource.com

Key Findings

We analyzed Rainbowresource.com page load time and found that the first response time was 723 ms and then it took 31.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

rainbowresource.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value24.6 s

0/100

10%

TBT (Total Blocking Time)

Value62,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.11

87/100

15%

TTI (Time to Interactive)

Value86.5 s

0/100

10%

Network Requests Diagram

rainbowresource.com

723 ms

www.rainbowresource.com

2718 ms

analytics.js

1753 ms

style-new.css

3313 ms

jquery-1.9.1.js

3312 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 5% of them (4 requests) were addressed to the original Rainbowresource.com, 75% (65 requests) were made to Cdn-rainbowresource.netdna-ssl.com and 9% (8 requests) were made to I.vimeocdn.com. The less responsive or slowest element that took the longest time to load (6.4 sec) relates to the external source Cdn-rainbowresource.netdna-ssl.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (34%)

Content Size

4.6 MB

After Optimization

3.1 MB

In fact, the total size of Rainbowresource.com main page is 4.6 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. 70% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 315.7 kB

  • Original 362.1 kB
  • After minification 347.9 kB
  • After compression 46.4 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 315.7 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 68.9 kB

  • Original 2.6 MB
  • After minification 2.5 MB

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. Rainbow Resource images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 973.1 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 447.1 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 973.1 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 190.9 kB

  • Original 226.9 kB
  • After minification 191.7 kB
  • After compression 36.0 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. Rainbowresource.com needs all CSS files to be minified and compressed as it can save up to 190.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (38%)

Requests Now

85

After Optimization

53

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rainbow Resource. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rainbowresource.com accessibility score

71

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Tables and lists

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

Impact

Issue

High

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

Best Practices

rainbowresource.com best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

rainbowresource.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rainbowresource.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 Rainbowresource.com main page’s claimed encoding is iso-8859-1. 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 Rainbow Resource. 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: