Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

zenler.com

Zenler - Best All in One Online Course Platform to Create & Sell Courses, Community and Coaching

Page Load Speed

2.5 sec in total

First Response

85 ms

Resources Loaded

1.9 sec

Page Rendered

432 ms

zenler.com screenshot

About Website

Click here to check amazing Zenler content for India. Otherwise, check out these important facts you probably never knew about zenler.com

Everything you need to sell courses online from Course Creation, Marketing, Emails to Community without the tech hassle. Get started with Zenler today.

Visit zenler.com

Key Findings

We analyzed Zenler.com page load time and found that the first response time was 85 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

zenler.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value490 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

zenler.com

85 ms

www.zenler.com

216 ms

bootstrap.min.css

145 ms

bootstrap-responsive.min.css

113 ms

styles3.css

118 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 58% of them (46 requests) were addressed to the original Zenler.com, 8% (6 requests) were made to Fonts.gstatic.com and 6% (5 requests) were made to Fast.wistia.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Zenler.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 739.8 kB (44%)

Content Size

1.7 MB

After Optimization

951.1 kB

In fact, the total size of Zenler.com main page is 1.7 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. 50% of websites need less resources to load. Images take 648.6 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 22.9 kB

  • Original 32.2 kB
  • After minification 29.7 kB
  • After compression 9.3 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 22.9 kB or 71% of the original size.

Image Optimization

-19%

Potential reduce by 120.4 kB

  • Original 648.6 kB
  • After minification 528.2 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. Obviously, Zenler needs image optimization as it can save up to 120.4 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-45%

Potential reduce by 282.8 kB

  • Original 631.6 kB
  • After minification 625.9 kB
  • After compression 348.7 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 282.8 kB or 45% of the original size.

CSS Optimization

-83%

Potential reduce by 313.7 kB

  • Original 378.6 kB
  • After minification 375.4 kB
  • After compression 64.9 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. Zenler.com needs all CSS files to be minified and compressed as it can save up to 313.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (28%)

Requests Now

68

After Optimization

49

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zenler. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zenler.com 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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zenler.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

zenler.com SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

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

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