Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 70

    SEO

    Google-friendlier than
    30% of websites

columbia.aurorak12.org

Home - Columbia Middle School

Page Load Speed

7 sec in total

First Response

2.9 sec

Resources Loaded

3.7 sec

Page Rendered

339 ms

columbia.aurorak12.org screenshot

About Website

Click here to check amazing Columbia Aurorak 12 content for United States. Otherwise, check out these important facts you probably never knew about columbia.aurorak12.org

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Key Findings

We analyzed Columbia.aurorak12.org page load time and found that the first response time was 2.9 sec and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

columbia.aurorak12.org performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value7,090 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.389

26/100

15%

TTI (Time to Interactive)

Value30.5 s

0/100

10%

Network Requests Diagram

columbia.aurorak12.org

2936 ms

script.js

73 ms

style.css

116 ms

skin.css

75 ms

style.css

157 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 76% of them (45 requests) were addressed to the original Columbia.aurorak12.org, 7% (4 requests) were made to Aurorak12.org and 5% (3 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Columbia.aurorak12.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 639.1 kB (60%)

Content Size

1.1 MB

After Optimization

417.3 kB

In fact, the total size of Columbia.aurorak12.org main page is 1.1 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. 35% of websites need less resources to load. CSS take 451.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 43.7 kB

  • Original 53.6 kB
  • After minification 50.9 kB
  • After compression 9.9 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 43.7 kB or 82% of the original size.

Image Optimization

-12%

Potential reduce by 14.4 kB

  • Original 125.5 kB
  • After minification 111.0 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, Columbia Aurorak 12 needs image optimization as it can save up to 14.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-55%

Potential reduce by 234.6 kB

  • Original 425.9 kB
  • After minification 408.2 kB
  • After compression 191.3 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 234.6 kB or 55% of the original size.

CSS Optimization

-77%

Potential reduce by 346.4 kB

  • Original 451.5 kB
  • After minification 403.7 kB
  • After compression 105.1 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. Columbia.aurorak12.org needs all CSS files to be minified and compressed as it can save up to 346.4 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (71%)

Requests Now

56

After Optimization

16

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Columbia Aurorak 12. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

columbia.aurorak12.org accessibility score

70

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

Best Practices

columbia.aurorak12.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

columbia.aurorak12.org SEO score

70

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

Links do not have descriptive text

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 doesn't use 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 Columbia.aurorak12.org 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 Columbia.aurorak12.org 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 Columbia Aurorak 12. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: