Tools & Wizards About Us

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

sourcelens.com.au

SourceLens-Coding and IT admin courses in Sydney NSW

Page Load Speed

1.9 sec in total

First Response

113 ms

Resources Loaded

1.1 sec

Page Rendered

645 ms

About Website

Visit sourcelens.com.au now to see the best up-to-date Source Lens content and also check out these interesting facts you probably never knew about sourcelens.com.au

SourceLens deliver Advanced computer science training courses on different areas of computer programming and IT administration at a very affordable cost. Classroom, instructor-led training courses fro...

Visit sourcelens.com.au

Key Findings

We analyzed Sourcelens.com.au page load time and found that the first response time was 113 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 35% of websites can load faster.

Performance Metrics

sourcelens.com.au performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value330 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

sourcelens.com.au

113 ms

sourcelens.com.au

281 ms

js

59 ms

gtm.js

98 ms

css

30 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 62% of them (16 requests) were addressed to the original Sourcelens.com.au, 15% (4 requests) were made to Googletagmanager.com and 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (526 ms) belongs to the original domain Sourcelens.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 258.0 kB (43%)

Content Size

594.5 kB

After Optimization

336.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sourcelens.com.au main page is 594.5 kB. 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 265.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.1 kB

  • Original 27.4 kB
  • After minification 20.6 kB
  • After compression 6.2 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. This page needs HTML code to be minified as it can gain 6.8 kB, which is 25% 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 21.1 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 12.7 kB

  • Original 265.0 kB
  • After minification 252.3 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. Source Lens images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 62.8 kB

  • Original 108.4 kB
  • After minification 102.8 kB
  • After compression 45.6 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 62.8 kB or 58% of the original size.

CSS Optimization

-83%

Potential reduce by 161.3 kB

  • Original 193.7 kB
  • After minification 191.0 kB
  • After compression 32.4 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. Sourcelens.com.au needs all CSS files to be minified and compressed as it can save up to 161.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (62%)

Requests Now

21

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Source Lens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sourcelens.com.au accessibility score

98

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.

Best Practices

sourcelens.com.au 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

High

Page has valid source maps

SEO Factors

sourcelens.com.au SEO score

86

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

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

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 Sourcelens.com.au 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 Sourcelens.com.au 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 description is not detected on the main page of Source Lens. 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: