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rotc.blackboard.com screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

rotc.blackboard.com

Page Load Speed

1.5 sec in total

First Response

147 ms

Resources Loaded

1.3 sec

Page Rendered

72 ms

rotc.blackboard.com screenshot

About Website

Welcome to rotc.blackboard.com homepage info - get ready to check Rotc Blackboard best content for United States right away, or after learning these important things about rotc.blackboard.com

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Key Findings

We analyzed Rotc.blackboard.com page load time and found that the first response time was 147 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

rotc.blackboard.com performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value1.007

2/100

15%

TTI (Time to Interactive)

Value8.2 s

41/100

10%

Network Requests Diagram

rotc.blackboard.com

147 ms

rotc.blackboard.com

337 ms

ultra.css

131 ms

multi_factor_authentication.css

190 ms

prism.css

191 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Rotc.blackboard.com and no external sources were called. The less responsive or slowest element that took the longest time to load (503 ms) belongs to the original domain Rotc.blackboard.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.3 kB (29%)

Content Size

510.3 kB

After Optimization

361.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rotc.blackboard.com main page is 510.3 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. 30% of websites need less resources to load. Javascripts take 290.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 136.5 kB

  • Original 163.5 kB
  • After minification 162.3 kB
  • After compression 26.9 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 136.5 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 756 B

  • Original 19.6 kB
  • After minification 18.9 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. Rotc Blackboard images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 10.7 kB

  • Original 290.1 kB
  • After minification 289.9 kB
  • After compression 279.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 1.3 kB

  • Original 37.2 kB
  • After minification 37.2 kB
  • After compression 35.9 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. Rotc.blackboard.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (79%)

Requests Now

19

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rotc Blackboard. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rotc.blackboard.com

rotc.blackboard.com

147 ms

rotc.blackboard.com

rotc.blackboard.com

337 ms

ultra.css

ultra.css

131 ms

multi_factor_authentication.css

multi_factor_authentication.css

190 ms

prism.css

prism.css

191 ms

video-integration.css

video-integration.css

195 ms

i18n.js

i18n.js

199 ms

cookie.js

cookie.js

209 ms

cdn.js

cdn.js

214 ms

44C587DF41BFE942C59AF2FE9CA0590D.js

44C587DF41BFE942C59AF2FE9CA0590D.js

503 ms

UserDataDWRFacade.js

UserDataDWRFacade.js

253 ms

MashupDWRFacade.js

MashupDWRFacade.js

258 ms

hide-focus-outline.js

hide-focus-outline.js

258 ms

login-page.js

login-page.js

273 ms

145748B07AE719E00DD302F7539EE4F3.js

145748B07AE719E00DD302F7539EE4F3.js

349 ms

cookieConsent.js

cookieConsent.js

320 ms

25012E16C84FDEEF1702BA345635CFE2.js

25012E16C84FDEEF1702BA345635CFE2.js

326 ms

qrcode.min.js

qrcode.min.js

323 ms

bb-corp-logo.png

bb-corp-logo.png

66 ms

complete.svg

complete.svg

66 ms

open-sans-regular.woff

open-sans-regular.woff

66 ms

open-sans-300.woff

open-sans-300.woff

71 ms

open-sans-600.woff

open-sans-600.woff

134 ms

open-sans-700.woff

open-sans-700.woff

127 ms

open-sans-800.woff

open-sans-800.woff

115 ms

noto-serif-regular.woff

noto-serif-regular.woff

163 ms

noto-serif-700.woff

noto-serif-700.woff

117 ms

bb-icons.woff

bb-icons.woff

184 ms

print.css

print.css

65 ms

Accessibility Review

rotc.blackboard.com accessibility score

93

Accessibility Issues

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

rotc.blackboard.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

rotc.blackboard.com SEO score

75

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

High

Page is blocked from indexing

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 Rotc.blackboard.com 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 Rotc.blackboard.com 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

rotc.blackboard.com

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