Tools & Wizards About Us

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

harrisontelescopes.co.uk

Harrison Telescopes Ltd - UK Astronomy Telescope Shop

Page Load Speed

3.7 sec in total

First Response

203 ms

Resources Loaded

2.1 sec

Page Rendered

1.4 sec

About Website

Click here to check amazing Harrison Telescopes content for United Kingdom. Otherwise, check out these important facts you probably never knew about harrisontelescopes.co.uk

Buy Telescopes online UK, SkyWatcher, Celestron, Explore Scientific, Bresser, Lunt, Altair Astro, Vixen, ZWO, Dwarflab and Baader astronomical telescopes, binoculars and accessories

Visit harrisontelescopes.co.uk

Key Findings

We analyzed Harrisontelescopes.co.uk page load time and found that the first response time was 203 ms and then it took 3.5 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

harrisontelescopes.co.uk performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value1.045

2/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

Network Requests Diagram

harrisontelescopes.co.uk

203 ms

www.harrisontelescopes.co.uk

434 ms

bootstrap.min.css

88 ms

actinic.css

179 ms

font-awesome.min.css

24 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 82% of them (73 requests) were addressed to the original Harrisontelescopes.co.uk, 8% (7 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (835 ms) belongs to the original domain Harrisontelescopes.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 284.8 kB (12%)

Content Size

2.4 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Harrisontelescopes.co.uk 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. 65% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 83.6 kB

  • Original 101.5 kB
  • After minification 100.8 kB
  • After compression 17.9 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 83.6 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 85.7 kB

  • Original 1.9 MB
  • After minification 1.8 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. Harrison Telescopes images are well optimized though.

JavaScript Optimization

-33%

Potential reduce by 94.5 kB

  • Original 282.6 kB
  • After minification 282.5 kB
  • After compression 188.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 94.5 kB or 33% of the original size.

CSS Optimization

-26%

Potential reduce by 21.0 kB

  • Original 79.8 kB
  • After minification 79.8 kB
  • After compression 58.8 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. Harrisontelescopes.co.uk needs all CSS files to be minified and compressed as it can save up to 21.0 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (36%)

Requests Now

80

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Harrison Telescopes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

harrisontelescopes.co.uk accessibility score

83

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.

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

harrisontelescopes.co.uk 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

High

Page has valid source maps

SEO Factors

harrisontelescopes.co.uk SEO score

77

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

High

Image elements do not have [alt] attributes

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Harrisontelescopes.co.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 Harrisontelescopes.co.uk main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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