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description for your awesome landing page

Page load speed analysis

  • 74/100

    Good result
  • 8

    Successful tests
  • 0

    Failed test
  • First response

    106 ms

  • Resources loaded

    1.3 sec

  • Page rendered

    402 ms

  • Total page load time

    1.8 sec

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

We analyzed page load time and found that the first response time was 106 ms and then it took 1.7 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.

Page optimization

  • HTML 59.4 kB
    Images 1.4 MB
    Javascripts 350.7 kB
    CSS 264.3 kB

    In fact, the total size of main page is 2.0 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. 45% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

    • Original 59.4 kB
    • After minification 48.6 kB
    • After compression 9.8 kB

    HTML optimization

    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. This page needs HTML code to be minified as it can gain 10.8 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 49.6 kB or 84% of the original size.

    • Original 1.4 MB
    • After optimization 1.2 MB

    Image optimization

    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.

    • Original 350.7 kB
    • After minification 348.4 kB
    • After compression 118.9 kB

    JavaScript optimization

    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 231.8 kB or 66% of the original size.

    • Original 264.3 kB
    • After minification 235.6 kB
    • After compression 39.2 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 225.1 kB or 85% of the original size.

Network requests diagram

  • modernizr.custom.js
  • bootstrap.min.css
  • jquery.fancybox.css
  • flickity.css
  • animate.css
  • font-awesome.min.css
  • css
  • styles.css
  • queries.css
  • w3.css
  • page.js
  • toucheffects-min.js
  • jquery.min.js
  • flickity.pkgd.min.js
  • jquery.fancybox.pack.js
  • retina.js
  • waypoints.min.js
  • bootstrap.min.js
  • scripts-min.js
  • hero-01.jpg
  • sm13.html
  • Math-makes-your-life-add-up.png
  • logo_login.png
  • English-Language-Arts-300x253.jpg
  • History3.jpg
  • Science-300x168.jpg
  • Puzzle.png
  • Pi-Day-250x300.jpg
  • cropped-physics.jpg
  • cropped-cropped-Live-Oak-Ridge-Class-of-2019may_2015.jpg
  • logo.png
  • ourstoryplay.png
  • icons.34.png
  • analytics.js
  • fontawesome-webfont.woff
  • ga.js
  • collect
  • collect
  • ga-audiences

Our browser made a total of 40 requests to load all elements on the main page. We found that 43% of them (17 requests) were addressed to the original, 20% (8 requests) were made to and 8% (3 requests) were made to The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source

Additional info on


The browser has sent 36 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 12 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result

IP address

This IP address is dedicated to This is the best domain hosting practice .

Good result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 600
NS 3600
NS 3600

600 Mname:
Serial: 2017111003
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum-ttl: 600
MX 3600 Pri: 10

Language and encoding

Normal result


EN en language flag


N/A  language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that 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.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 27.2% of all visits is United States. Unfortunately, we cannot track the location of server and thus cannot define if the distance between their user base and server can potentially affect the page load time

Good result

Good result

Social Sharing Optimization

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:

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