Tools & Wizards About Us
flippedclassroom.org screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

flippedclassroom.org

Preply - Best online language tutors and classes

Page Load Speed

1.5 sec in total

First Response

34 ms

Resources Loaded

680 ms

Page Rendered

783 ms

flippedclassroom.org screenshot

About Website

Visit flippedclassroom.org now to see the best up-to-date Flippedclassroom content for India and also check out these interesting facts you probably never knew about flippedclassroom.org

Looking for a tutor? Preply is the best platform for private online lessons with a flexible payment system and affordable prices. Book your first lesson.

Visit flippedclassroom.org

Key Findings

We analyzed Flippedclassroom.org page load time and found that the first response time was 34 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

flippedclassroom.org performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value1,960 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

flippedclassroom.org

34 ms

preply.com

228 ms

datadog-rum.js

31 ms

qwe.gif

453 ms

qweqwe.gif

158 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Flippedclassroom.org, 85% (47 requests) were made to Static.preply.com and 11% (6 requests) were made to Preply.com. The less responsive or slowest element that took the longest time to load (453 ms) relates to the external source Preply.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (20%)

Content Size

5.5 MB

After Optimization

4.4 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Flippedclassroom.org main page is 5.5 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. 75% 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 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 1.1 MB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 283.5 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 1.1 MB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 6.6 kB

  • Original 2.6 MB
  • After minification 2.6 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. Flippedclassroom images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 528 B

  • Original 1.5 MB
  • After minification 1.5 MB
  • After compression 1.5 MB

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.

Requests Breakdown

Number of requests can be reduced by 36 (68%)

Requests Now

53

After Optimization

17

  • Images
  • JavaScript

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Flippedclassroom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

flippedclassroom.org

flippedclassroom.org

34 ms

preply.com

preply.com

228 ms

datadog-rum.js

datadog-rum.js

31 ms

qwe.gif

qwe.gif

453 ms

qweqwe.gif

qweqwe.gif

158 ms

default-tokyo-ui.svg

default-tokyo-ui.svg

75 ms

hero-23-0802150dbe518540999c5757ad16d400.jpg

hero-23-0802150dbe518540999c5757ad16d400.jpg

86 ms

polyfills-c67a75d1b6f99dc8.js

polyfills-c67a75d1b6f99dc8.js

37 ms

webpack-421b1654bff0fcac.js

webpack-421b1654bff0fcac.js

54 ms

framework-19fa3454641a47fe.js

framework-19fa3454641a47fe.js

102 ms

main-d8b483719da160af.js

main-d8b483719da160af.js

58 ms

_app-a4666307551a6400.js

_app-a4666307551a6400.js

82 ms

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65 ms

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74 ms

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73fb9bb1-ea462687eccc16c8.js

69 ms

styles-54a8fdd305f89f60.js

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80 ms

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91 ms

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95 ms

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97 ms

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2273-b4343a1c007de7c5.js

129 ms

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130 ms

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2332-5b2907a11319a90c.js

99 ms

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8463-46bbf0ae90786f89.js

130 ms

6897-0a76f22653b0f523.js

6897-0a76f22653b0f523.js

174 ms

3575-fda787bf3b4225de.js

3575-fda787bf3b4225de.js

130 ms

5211-04577d2d0abfcbf0.js

5211-04577d2d0abfcbf0.js

131 ms

4076-ef84c9bf83746ea4.js

4076-ef84c9bf83746ea4.js

131 ms

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6177-9535d69b94f3dbd7.js

134 ms

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3659-1cc75dfd7f0b0703.js

175 ms

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9040-ddf213dab0f3f84a.js

134 ms

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7236-c8d4cb773894eb21.js

135 ms

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138 ms

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176 ms

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173 ms

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9478-2fd377ff27d34c04.js

176 ms

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176 ms

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178 ms

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1123-7f349ca82c037dcf.js

177 ms

9781-8c8e86d8512eb3f7.js

9781-8c8e86d8512eb3f7.js

197 ms

2924-7f5ad7398185ca7e.js

2924-7f5ad7398185ca7e.js

193 ms

home-76954b7b5080da1b.js

home-76954b7b5080da1b.js

195 ms

card-2-da929e1032468274fff3c7a827157232.jpg

card-2-da929e1032468274fff3c7a827157232.jpg

51 ms

card-3-0bab46dd6b35951f6fc2e87968b6e3ea.jpg

card-3-0bab46dd6b35951f6fc2e87968b6e3ea.jpg

193 ms

suitcase-9c13b3cdf1648a554ae467044e456b3b.jpg

suitcase-9c13b3cdf1648a554ae467044e456b3b.jpg

61 ms

_buildManifest.js

_buildManifest.js

169 ms

_ssgManifest.js

_ssgManifest.js

148 ms

Bree-975f02dc03b8de3fd69f2b5f28437893.jpg

Bree-975f02dc03b8de3fd69f2b5f28437893.jpg

155 ms

Liv-471717f87382729e5bacae5072ad556f.jpg

Liv-471717f87382729e5bacae5072ad556f.jpg

156 ms

Ash-c8d8273fa488c713dd42b75e4109cd7c.jpg

Ash-c8d8273fa488c713dd42b75e4109cd7c.jpg

148 ms

Milena-6565f848c6ee914e0d7c853e6aab5b3b.jpg

Milena-6565f848c6ee914e0d7c853e6aab5b3b.jpg

145 ms

Bassel-61d8f18fa66d8bb94d172bede9abfdc7.jpg

Bassel-61d8f18fa66d8bb94d172bede9abfdc7.jpg

139 ms

Sophia-b96057aa0eb60c3dd1995d0212f1f514.jpg

Sophia-b96057aa0eb60c3dd1995d0212f1f514.jpg

137 ms

tutor-23-ff1686e2d5b9b40017cfeb0afa8e15f8.jpg

tutor-23-ff1686e2d5b9b40017cfeb0afa8e15f8.jpg

139 ms

app_store_badge_en-79b8b5a578eb1f4d7bf116fad64f53e6.svg

app_store_badge_en-79b8b5a578eb1f4d7bf116fad64f53e6.svg

159 ms

google_play_badge_en-99874120ff7b66206b0188ae0e2801ac.png

google_play_badge_en-99874120ff7b66206b0188ae0e2801ac.png

122 ms

Accessibility Review

flippedclassroom.org accessibility score

74

Accessibility Issues

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-*] attributes do not match their roles

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

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

flippedclassroom.org best practices score

75

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

flippedclassroom.org SEO score

80

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Flippedclassroom.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 Flippedclassroom.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

flippedclassroom.org

Open Graph data is detected on the main page of Flippedclassroom. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: