Tools & Wizards About Us
go.courses screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

go.courses

Go Courses | Live Online Training | Microsoft Teams | Microsoft Excel | Business Skills Training

Page Load Speed

3.5 sec in total

First Response

338 ms

Resources Loaded

2.1 sec

Page Rendered

1.1 sec

go.courses screenshot

About Website

Visit go.courses now to see the best up-to-date Go content and also check out these interesting facts you probably never knew about go.courses

Go Courses provides a comprehensive range of IT and personal development training courses running at centres in the UK and also delivered at customer offices

Visit go.courses

Key Findings

We analyzed Go.courses page load time and found that the first response time was 338 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

go.courses performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value24.7 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value940 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.083

93/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

go.courses

338 ms

foundation.css

91 ms

gct.css

244 ms

ck.css

321 ms

enterprise.js

46 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 94% of them (47 requests) were addressed to the original Go.courses, 4% (2 requests) were made to Googletagmanager.com and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Go.courses.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (34%)

Content Size

6.3 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Go.courses main page is 6.3 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 6.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 50.7 kB

  • Original 60.5 kB
  • After minification 43.7 kB
  • After compression 9.8 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 16.8 kB, which is 28% 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 50.7 kB or 84% of the original size.

Image Optimization

-33%

Potential reduce by 2.0 MB

  • Original 6.1 MB
  • After minification 4.0 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, Go needs image optimization as it can save up to 2.0 MB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 42.7 kB

  • Original 142.2 kB
  • After minification 142.2 kB
  • After compression 99.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 42.7 kB or 30% of the original size.

CSS Optimization

-47%

Potential reduce by 35.7 kB

  • Original 75.2 kB
  • After minification 75.2 kB
  • After compression 39.5 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. Go.courses needs all CSS files to be minified and compressed as it can save up to 35.7 kB or 47% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (8%)

Requests Now

49

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Go. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

go.courses

go.courses

338 ms

foundation.css

foundation.css

91 ms

gct.css

gct.css

244 ms

ck.css

ck.css

321 ms

enterprise.js

enterprise.js

46 ms

main-body-pre.min.js

main-body-pre.min.js

326 ms

main-body-post.min.js

main-body-post.min.js

550 ms

js

js

56 ms

js

js

111 ms

logo-white.png

logo-white.png

83 ms

menu-box-icon-xls.png

menu-box-icon-xls.png

83 ms

menu-box-icon-aws.png

menu-box-icon-aws.png

81 ms

home-top-graphic.png

home-top-graphic.png

89 ms

microsoft-logo.png

microsoft-logo.png

159 ms

frontia-logo-white-cropped.svg

frontia-logo-white-cropped.svg

156 ms

video-poster-frame.jpg

video-poster-frame.jpg

367 ms

logo-footer.png

logo-footer.png

165 ms

diagonal-lines.png

diagonal-lines.png

1266 ms

aws-background.jpg

aws-background.jpg

358 ms

play-button.png

play-button.png

349 ms

home-signpost-bkgd.jpg

home-signpost-bkgd.jpg

324 ms

new-spotlight-skills.png

new-spotlight-skills.png

85 ms

new-spotlight-people.png

new-spotlight-people.png

80 ms

new-spotlight-prospects.png

new-spotlight-prospects.png

84 ms

new-spotlight-certificate.png

new-spotlight-certificate.png

81 ms

new-signpost.jpg

new-signpost.jpg

164 ms

new-signpost-2.jpg

new-signpost-2.jpg

232 ms

signpost.jpg

signpost.jpg

233 ms

signpost-2.jpg

signpost-2.jpg

164 ms

Screenshot-2024-02-21-at-10.01.45.png

Screenshot-2024-02-21-at-10.01.45.png

235 ms

Screenshot-2024-02-20-at-13.58.04.png

Screenshot-2024-02-20-at-13.58.04.png

316 ms

Screenshot-2024-02-20-at-13.50.35.png

Screenshot-2024-02-20-at-13.50.35.png

242 ms

shutterstock_1724713963-scaled.jpg

shutterstock_1724713963-scaled.jpg

541 ms

Screenshot-2024-02-02-at-14.26.26.png

Screenshot-2024-02-02-at-14.26.26.png

321 ms

Screenshot-2023-07-20-at-10.36.56.png

Screenshot-2023-07-20-at-10.36.56.png

323 ms

GoCoursesHeaderYotiCaseStudy.jpg

GoCoursesHeaderYotiCaseStudy.jpg

323 ms

GoCoursesHeaderRybrookBentleyCaseStudy-1.jpg

GoCoursesHeaderRybrookBentleyCaseStudy-1.jpg

691 ms

GoCoursesHeaderBabcockCaseStudy-1.jpg

GoCoursesHeaderBabcockCaseStudy-1.jpg

398 ms

ChildrensalonTrainingCourse1-1.jpg

ChildrensalonTrainingCourse1-1.jpg

400 ms

GoCoursesHeaderWellsInteriorsCaseStudy-1.jpg

GoCoursesHeaderWellsInteriorsCaseStudy-1.jpg

402 ms

GoCoursesHeaderMediacomCaseStudy.jpg

GoCoursesHeaderMediacomCaseStudy.jpg

479 ms

GoCoursesBlogHeaderLondonTrainingVenue.jpg

GoCoursesBlogHeaderLondonTrainingVenue.jpg

475 ms

GoCoursesBlogHeaderMicrosoftAzureCertification-1.jpg

GoCoursesBlogHeaderMicrosoftAzureCertification-1.jpg

477 ms

GoCoursesBlogHeaderLearnMicrosoftVBA-1.jpg

GoCoursesBlogHeaderLearnMicrosoftVBA-1.jpg

569 ms

GoCoursesBlogHeaderBePowerPointPro.jpg

GoCoursesBlogHeaderBePowerPointPro.jpg

569 ms

GoCoursesBlogHeaderLearnExcelQuickly-1.jpg

GoCoursesBlogHeaderLearnExcelQuickly-1.jpg

571 ms

bentley-case-study.jpg

bentley-case-study.jpg

694 ms

our-nps.jpg

our-nps.jpg

656 ms

microsoft-azure.jpg

microsoft-azure.jpg

651 ms

the-mural.jpg

the-mural.jpg

723 ms

Accessibility Review

go.courses accessibility score

86

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

go.courses 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

go.courses SEO score

83

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

    N/A

  • Encoding

    UTF-8

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

go.courses

Open Graph description is not detected on the main page of Go. 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: