Tools & Wizards About Us
iblocks.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 66

    SEO

    Google-friendlier than
    26% of websites

iblocks.com

Project Based Learning iBlocks

Page Load Speed

1.5 sec in total

First Response

48 ms

Resources Loaded

746 ms

Page Rendered

709 ms

iblocks.com screenshot

About Website

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

Empower students with iBlocks’ project based learning—hands-on, student-led modules that build STEM, SEL, and career-ready skills.

Visit iblocks.com

Key Findings

We analyzed Iblocks.com page load time and found that the first response time was 48 ms and then it took 1.5 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

iblocks.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value3,470 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value28.7 s

0/100

10%

Network Requests Diagram

iblocks.com

48 ms

iblocks.com

52 ms

wp-emoji-release.min.js

5 ms

style.min.css

32 ms

shared.css

57 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 49% of them (33 requests) were addressed to the original Iblocks.com, 9% (6 requests) were made to Use.typekit.net and 9% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (210 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 288.3 kB (7%)

Content Size

4.1 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iblocks.com main page is 4.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 47.4 kB

  • Original 69.3 kB
  • After minification 63.7 kB
  • After compression 21.9 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 47.4 kB or 68% of the original size.

Image Optimization

-1%

Potential reduce by 18.1 kB

  • Original 3.4 MB
  • After minification 3.4 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. IBlocks images are well optimized though.

JavaScript Optimization

-41%

Potential reduce by 218.7 kB

  • Original 531.6 kB
  • After minification 531.4 kB
  • After compression 312.8 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 218.7 kB or 41% of the original size.

CSS Optimization

-7%

Potential reduce by 4.0 kB

  • Original 59.4 kB
  • After minification 59.4 kB
  • After compression 55.4 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. Iblocks.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (56%)

Requests Now

55

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IBlocks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iblocks.com

iblocks.com

48 ms

iblocks.com

iblocks.com

52 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

5 ms

style.min.css

style.min.css

32 ms

shared.css

shared.css

57 ms

jquery-ui.css

jquery-ui.css

83 ms

jquery.min.js

jquery.min.js

86 ms

jquery-ui.js

jquery-ui.js

106 ms

ajax-script.js

ajax-script.js

33 ms

script.js

script.js

56 ms

iblocks-teq-style.css

iblocks-teq-style.css

70 ms

iblocks-teq-style-v2.css

iblocks-teq-style-v2.css

56 ms

css

css

100 ms

yal1ewy.css

yal1ewy.css

177 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

100 ms

js

js

129 ms

v2.js

v2.js

128 ms

v2.js

v2.js

133 ms

m1k52vhxh3.jsonp

m1k52vhxh3.jsonp

95 ms

E-v1.js

E-v1.js

128 ms

aj3ye44pes.jsonp

aj3ye44pes.jsonp

102 ms

wp-embed.min.js

wp-embed.min.js

72 ms

182596.js

182596.js

125 ms

p.css

p.css

41 ms

obtp.js

obtp.js

151 ms

bullseye.svg

bullseye.svg

31 ms

dollar_sign.svg

dollar_sign.svg

30 ms

mail.svg

mail.svg

30 ms

iBlocks_PBL_Logo.svg

iBlocks_PBL_Logo.svg

38 ms

now_available.svg

now_available.svg

34 ms

iBlocks_Coming_Soon_Teaser.png

iBlocks_Coming_Soon_Teaser.png

197 ms

school-icon.svg

school-icon.svg

32 ms

teacher-icon.svg

teacher-icon.svg

33 ms

student-icon.svg

student-icon.svg

31 ms

02_transform.svg

02_transform.svg

37 ms

02_create.svg

02_create.svg

35 ms

02_spark.svg

02_spark.svg

34 ms

rubegoldberg-section-build-a-chain-reaction.jpg

rubegoldberg-section-build-a-chain-reaction.jpg

56 ms

rubegoldberg-section-partnership-logos.jpg

rubegoldberg-section-partnership-logos.jpg

56 ms

ESSA_Level_IV.png

ESSA_Level_IV.png

56 ms

iblocks-teq-logo_transparent.png

iblocks-teq-logo_transparent.png

83 ms

Equal_Opportunity_Employer_Logo-white.svg

Equal_Opportunity_Employer_Logo-white.svg

57 ms

loader.js

loader.js

165 ms

iBlocks_homepage_bg.jpg

iBlocks_homepage_bg.jpg

122 ms

d

d

88 ms

d

d

108 ms

d

d

106 ms

d

d

107 ms

d

d

107 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

150 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

182 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

210 ms

KFOkCnqEu92Fr1MmgVxIIzc.ttf

KFOkCnqEu92Fr1MmgVxIIzc.ttf

209 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

209 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

209 ms

Homepage_Feature.html

Homepage_Feature.html

85 ms

why-iblocks-bg.jpg

why-iblocks-bg.jpg

84 ms

web-interactives-embed.js

web-interactives-embed.js

102 ms

banner.js

banner.js

74 ms

182596.js

182596.js

102 ms

fb.js

fb.js

101 ms

createjs.min.js

createjs.min.js

126 ms

Homepage_Feature.js

Homepage_Feature.js

43 ms

app.js

app.js

22 ms

3735-773-10-4460.js

3735-773-10-4460.js

9 ms

application2.js

application2.js

19 ms

_preloader.gif

_preloader.gif

4 ms

Homepage_Feature_atlas_1.png

Homepage_Feature_atlas_1.png

93 ms

Accessibility Review

iblocks.com accessibility score

88

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

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

iblocks.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

iblocks.com SEO score

66

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Iblocks.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 Iblocks.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

iblocks.com

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