Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

cogc.ac.uk

City of Glasgow College | Full Time, Part Time, Evening and Weekend College Courses

Page Load Speed

7.9 sec in total

First Response

361 ms

Resources Loaded

6.9 sec

Page Rendered

569 ms

cogc.ac.uk screenshot

About Website

Welcome to cogc.ac.uk homepage info - get ready to check Cogc best content right away, or after learning these important things about cogc.ac.uk

City of Glasgow College in Scotland has a wide range of full time and part time college courses, as well as evening and Saturday classes to choose from.

Visit cogc.ac.uk

Key Findings

We analyzed Cogc.ac.uk page load time and found that the first response time was 361 ms and then it took 7.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

cogc.ac.uk performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

cogc.ac.uk

361 ms

www.cityofglasgowcollege.ac.uk

1489 ms

js

606 ms

js

71 ms

8fcd96d265.js

91 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cogc.ac.uk, 71% (55 requests) were made to Cityofglasgowcollege.ac.uk and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Cityofglasgowcollege.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 219.9 kB (18%)

Content Size

1.2 MB

After Optimization

995.3 kB

In fact, the total size of Cogc.ac.uk main page is 1.2 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. 60% of websites need less resources to load. Images take 845.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 169.9 kB

  • Original 192.7 kB
  • After minification 125.3 kB
  • After compression 22.8 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 67.4 kB, which is 35% 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 169.9 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 38.8 kB

  • Original 845.6 kB
  • After minification 806.8 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. Cogc images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 11.1 kB

  • Original 118.2 kB
  • After minification 118.2 kB
  • After compression 107.1 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 67 B

  • Original 58.7 kB
  • After minification 58.7 kB
  • After compression 58.6 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. Cogc.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (24%)

Requests Now

62

After Optimization

47

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cogc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

cogc.ac.uk accessibility score

100

Accessibility Issues

Best Practices

cogc.ac.uk best practices score

67

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

cogc.ac.uk SEO score

84

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

High

Tap targets are not sized appropriately

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 Cogc.ac.uk 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 Cogc.ac.uk 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 Cogc. 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: