Tools & Wizards About Us
celloprofessor.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

celloprofessor.com

Cello Pedagogy & Technique | Videos Tutorials and Articles

Page Load Speed

2.6 sec in total

First Response

237 ms

Resources Loaded

2 sec

Page Rendered

372 ms

celloprofessor.com screenshot

About Website

Visit celloprofessor.com now to see the best up-to-date Cello Professor content and also check out these interesting facts you probably never knew about celloprofessor.com

Cello pedagogy and technique website. Ideas on how to teach and play the cello with instruction for beginners and advanced. Articles and videos!

Visit celloprofessor.com

Key Findings

We analyzed Celloprofessor.com page load time and found that the first response time was 237 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

celloprofessor.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

celloprofessor.com

237 ms

celloprofessor.com

482 ms

www.celloprofessor.com

687 ms

script.js

492 ms

Cello+Professor+Logo+13+December+2019+%281%29-1920w.png

39 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 17% of them (4 requests) were addressed to the original Celloprofessor.com, 26% (6 requests) were made to Static-cdn.website-editor.net and 22% (5 requests) were made to Le-cdn.website-editor.net. The less responsive or slowest element that took the longest time to load (687 ms) belongs to the original domain Celloprofessor.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 433.3 kB (18%)

Content Size

2.4 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Celloprofessor.com main page is 2.4 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 172.0 kB

  • Original 222.1 kB
  • After minification 216.9 kB
  • After compression 50.1 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 172.0 kB or 77% of the original size.

Image Optimization

-14%

Potential reduce by 260.9 kB

  • Original 1.8 MB
  • After minification 1.6 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. Obviously, Cello Professor needs image optimization as it can save up to 260.9 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 183 B

  • Original 263.6 kB
  • After minification 263.6 kB
  • After compression 263.5 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

-0%

Potential reduce by 278 B

  • Original 84.3 kB
  • After minification 84.3 kB
  • After compression 84.0 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. Celloprofessor.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (59%)

Requests Now

17

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cello Professor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

celloprofessor.com

celloprofessor.com

237 ms

celloprofessor.com

celloprofessor.com

482 ms

www.celloprofessor.com

www.celloprofessor.com

687 ms

script.js

script.js

492 ms

Cello+Professor+Logo+13+December+2019+%281%29-1920w.png

Cello+Professor+Logo+13+December+2019+%281%29-1920w.png

39 ms

120745-1920w.jpeg

120745-1920w.jpeg

57 ms

css2

css2

54 ms

d-css-runtime-desktop-one-package-structured-global.min.css

d-css-runtime-desktop-one-package-structured-global.min.css

58 ms

4630930732df92e8cc3970225d4d7010.css

4630930732df92e8cc3970225d4d7010.css

56 ms

3974f14672c149828790534a6740d8ee_withFlex_1.min.css

3974f14672c149828790534a6740d8ee_withFlex_1.min.css

68 ms

1and1-runtime.css

1and1-runtime.css

168 ms

3974f14672c149828790534a6740d8ee_home_withFlex_1.min.css

3974f14672c149828790534a6740d8ee_home_withFlex_1.min.css

85 ms

jquery.min.js

jquery.min.js

67 ms

d-js-one-runtime-unified-desktop.min.js

d-js-one-runtime-unified-desktop.min.js

85 ms

sitesearch360-v12.mjs

sitesearch360-v12.mjs

85 ms

sitesearch360-v12.min.js

sitesearch360-v12.min.js

94 ms

counter.js

counter.js

84 ms

Kid+cello-1920w.jpg

Kid+cello-1920w.jpg

39 ms

cello_choir-68998b07-1920w.jpg

cello_choir-68998b07-1920w.jpg

50 ms

125913-1920w.jpeg

125913-1920w.jpeg

41 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

40 ms

dm-social-icons.ttf

dm-social-icons.ttf

51 ms

dm-common-icons.ttf

dm-common-icons.ttf

263 ms

Accessibility Review

celloprofessor.com accessibility score

91

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-hidden="true"] elements contain focusable descendents

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.

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

Links do not have a discernible name

Best Practices

celloprofessor.com best practices score

75

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

Browser errors were logged to the console

SEO Factors

celloprofessor.com SEO score

93

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

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

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 Celloprofessor.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 Celloprofessor.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

celloprofessor.com

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