Tools & Wizards About Us
telescopehouse.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

telescopehouse.com

Telescope House - Telescope Specialist since 1785 | Home page | The UK 's Online Home of Astronomy. Telescope, Astronomical Equipment and Binocul...

Page Load Speed

5.1 sec in total

First Response

694 ms

Resources Loaded

4.2 sec

Page Rendered

280 ms

telescopehouse.com screenshot

About Website

Click here to check amazing Telescope House content for United Kingdom. Otherwise, check out these important facts you probably never knew about telescopehouse.com

Leading Online UK Telescope Specialists For Astronomy - Call 01342 837098. Normal Phoneline Hours: 9-5pm, Monday-Friday (phonelines closed Wednesdays). UK Dealer of Telescopes, Binoculars & Accessorie...

Visit telescopehouse.com

Key Findings

We analyzed Telescopehouse.com page load time and found that the first response time was 694 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

telescopehouse.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value740 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.172

70/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

www.telescopehouse.com

694 ms

css

25 ms

jquery-1.7.min.js

430 ms

superfish.js

178 ms

scripts.js

257 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 80% of them (69 requests) were addressed to the original Telescopehouse.com, 10% (9 requests) were made to Bresseruk.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Telescopehouse.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (49%)

Content Size

2.6 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Telescopehouse.com main page is 2.6 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. 35% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 96.0 kB

  • Original 107.9 kB
  • After minification 93.7 kB
  • After compression 11.9 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. This page needs HTML code to be minified as it can gain 14.2 kB, which is 13% 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 96.0 kB or 89% of the original size.

Image Optimization

-13%

Potential reduce by 151.3 kB

  • Original 1.2 MB
  • After minification 1.0 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, Telescope House needs image optimization as it can save up to 151.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-77%

Potential reduce by 673.2 kB

  • Original 868.8 kB
  • After minification 621.2 kB
  • After compression 195.6 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 673.2 kB or 77% of the original size.

CSS Optimization

-86%

Potential reduce by 341.9 kB

  • Original 398.7 kB
  • After minification 309.8 kB
  • After compression 56.8 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. Telescopehouse.com needs all CSS files to be minified and compressed as it can save up to 341.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (48%)

Requests Now

82

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Telescope House. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.telescopehouse.com

www.telescopehouse.com

694 ms

css

css

25 ms

jquery-1.7.min.js

jquery-1.7.min.js

430 ms

superfish.js

superfish.js

178 ms

scripts.js

scripts.js

257 ms

font-awesome.css

font-awesome.css

261 ms

jquery.bxslider.css

jquery.bxslider.css

184 ms

photoswipe.css

photoswipe.css

353 ms

bootstrap.css

bootstrap.css

689 ms

extra_style.css

extra_style.css

454 ms

styles.css

styles.css

766 ms

responsive.css

responsive.css

540 ms

superfish.css

superfish.css

528 ms

camera.css

camera.css

685 ms

widgets.css

widgets.css

609 ms

cloud-zoom.css

cloud-zoom.css

705 ms

catalogsale.css

catalogsale.css

716 ms

sagePaySuite.css

sagePaySuite.css

784 ms

prototype.js

prototype.js

1222 ms

ccard.js

ccard.js

863 ms

validation.js

validation.js

1040 ms

builder.js

builder.js

889 ms

effects.js

effects.js

1057 ms

dragdrop.js

dragdrop.js

1040 ms

controls.js

controls.js

1119 ms

slider.js

slider.js

1064 ms

js.js

js.js

1298 ms

form.js

form.js

1216 ms

translate.js

translate.js

1247 ms

cookies.js

cookies.js

1248 ms

cloud-zoom.1.0.2.js

cloud-zoom.1.0.2.js

1374 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

1393 ms

jquery.mobile.customized.min.js

jquery.mobile.customized.min.js

1478 ms

bootstrap.js

bootstrap.js

1575 ms

jquery.carouFredSel-6.2.1.js

jquery.carouFredSel-6.2.1.js

1657 ms

jquery.touchSwipe.js

jquery.touchSwipe.js

1673 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

1630 ms

carousel.js

carousel.js

1403 ms

camera.js

camera.js

465 ms

conversion.js

conversion.js

14 ms

ga.js

ga.js

61 ms

homepage-telescopes-1-1.jpg

homepage-telescopes-1-1.jpg

266 ms

homepage-binoculars-1-1.jpg

homepage-binoculars-1-1.jpg

268 ms

homepage-mounts-1-1.jpg

homepage-mounts-1-1.jpg

266 ms

homepage-eyepieces-1-1.jpg

homepage-eyepieces-1-1.jpg

272 ms

homepage-accessories-1-1.jpg

homepage-accessories-1-1.jpg

279 ms

homepage-imaging-1-1.jpg

homepage-imaging-1-1.jpg

361 ms

telescopehouse-logo-1-1.png

telescopehouse-logo-1-1.png

299 ms

youtube-logo-1-1.jpg

youtube-logo-1-1.jpg

222 ms

google-logo-1-1.jpg

google-logo-1-1.jpg

222 ms

twitter-logo-1-1.jpg

twitter-logo-1-1.jpg

222 ms

facebook-logo-1-1.jpg

facebook-logo-1-1.jpg

222 ms

cart-content-tail.gif

cart-content-tail.gif

221 ms

search-glass-1-1.jpg

search-glass-1-1.jpg

395 ms

bestsellers.png

bestsellers.png

399 ms

new-bestsellers-5se.png

new-bestsellers-5se.png

398 ms

bestseller-rev-12.png

bestseller-rev-12.png

401 ms

bestseller-nt130l.png

bestseller-nt130l.png

403 ms

bestsellers-besser-dob.png

bestsellers-besser-dob.png

474 ms

bestseller-starnavigator-90.png

bestseller-starnavigator-90.png

571 ms

bestseller-etx80.png

bestseller-etx80.png

575 ms

how-to-choose-new-site-374x170.png

how-to-choose-new-site-374x170.png

816 ms

newsletter-new-site-374x170.png

newsletter-new-site-374x170.png

738 ms

gallery-new-site-374x170.png

gallery-new-site-374x170.png

741 ms

4914911-1.jpg

4914911-1.jpg

646 ms

0112087_m3.jpg

0112087_m3.jpg

746 ms

lunt-ls50c-h-alpha-double-stack-filter-for-ls50tha-h-alpha-telescope.jpg

lunt-ls50c-h-alpha-double-stack-filter-for-ls50tha-h-alpha-telescope.jpg

751 ms

qfm-1008.png

qfm-1008.png

906 ms

4610149.png

4610149.png

998 ms

4710147.jpg

4710147.jpg

929 ms

4690129.jpg

4690129.jpg

931 ms

4512909_1.jpg

4512909_1.jpg

933 ms

credit-cards-1-1.jpg

credit-cards-1-1.jpg

1084 ms

content-bg.gif

content-bg.gif

1059 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1318 ms

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

54 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

55 ms

__utm.gif

__utm.gif

23 ms

footer-tail.gif

footer-tail.gif

1176 ms

90 ms

bresser-starter-homepage-main-banner.png

bresser-starter-homepage-main-banner.png

807 ms

camera-loader.gif

camera-loader.gif

1078 ms

34 ms

bresser-dob-homepage-main-banner.png

bresser-dob-homepage-main-banner.png

715 ms

print.css

print.css

187 ms

blank.gif

blank.gif

185 ms

Accessibility Review

telescopehouse.com accessibility score

97

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

telescopehouse.com best practices score

85

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

telescopehouse.com SEO score

92

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

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 Telescopehouse.com 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 Telescopehouse.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

telescopehouse.com

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