Tools & Wizards About Us
telescopes.fr screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

telescopes.fr

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

Page Load Speed

6 sec in total

First Response

203 ms

Resources Loaded

5.5 sec

Page Rendered

348 ms

telescopes.fr screenshot

About Website

Welcome to telescopes.fr homepage info - get ready to check Telescope S best content right away, or after learning these important things about telescopes.fr

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 telescopes.fr

Key Findings

We analyzed Telescopes.fr page load time and found that the first response time was 203 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

telescopes.fr performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value5,600 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.191

64/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

telescopes.fr

203 ms

accueil

229 ms

3871 ms

analytics.js

8 ms

theme.min.css

474 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Telescopes.fr, 58% (31 requests) were made to Telescope.house and 15% (8 requests) were made to Toxid.explorescientific.de. The less responsive or slowest element that took the longest time to load (3.9 sec) relates to the external source Telescope.house.

Page Optimization Overview & Recommendations

Page size can be reduced by 625.0 kB (45%)

Content Size

1.4 MB

After Optimization

761.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Telescopes.fr main page is 1.4 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. 45% of websites need less resources to load. Images take 570.0 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 121.2 kB

  • Original 132.9 kB
  • After minification 72.6 kB
  • After compression 11.8 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 60.3 kB, which is 45% 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 121.2 kB or 91% of the original size.

Image Optimization

-11%

Potential reduce by 62.7 kB

  • Original 570.0 kB
  • After minification 507.2 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. Obviously, Telescope S needs image optimization as it can save up to 62.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 168.1 kB

  • Original 263.9 kB
  • After minification 262.9 kB
  • After compression 95.8 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 168.1 kB or 64% of the original size.

CSS Optimization

-65%

Potential reduce by 273.1 kB

  • Original 419.9 kB
  • After minification 419.6 kB
  • After compression 146.8 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. Telescopes.fr needs all CSS files to be minified and compressed as it can save up to 273.1 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (28%)

Requests Now

46

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Telescope S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

telescopes.fr

telescopes.fr

203 ms

accueil

accueil

229 ms

3871 ms

analytics.js

analytics.js

8 ms

theme.min.css

theme.min.css

474 ms

frontend.min.css

frontend.min.css

201 ms

jquery.min.js

jquery.min.js

381 ms

jquery-ui.custom.min.js

jquery-ui.custom.min.js

197 ms

theme.min.js

theme.min.js

296 ms

frontend.min.js

frontend.min.js

195 ms

collect

collect

4 ms

collect

collect

66 ms

fb.gif

fb.gif

240 ms

aktion_januar.jpg

aktion_januar.jpg

408 ms

logo.png

logo.png

507 ms

fr.png

fr.png

359 ms

de.png

de.png

366 ms

en.png

en.png

506 ms

es.png

es.png

506 ms

it.png

it.png

507 ms

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632 ms

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631 ms

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632 ms

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632 ms

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633 ms

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644 ms

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037ac73bcef95d141469253b52eff930_01-12087_m3_th.jpg

733 ms

2873941fee19acf2db326d7410b2850b_4676359_m_1_th.jpg

2873941fee19acf2db326d7410b2850b_4676359_m_1_th.jpg

733 ms

42c291011f6dec346ad9a683872709e8_0219917_m_1_th.jpg

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735 ms

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740 ms

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742 ms

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821 ms

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918 ms

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a0bdec2c693fa57447b10d14e43341be_4940800_m1_th.jpg

920 ms

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a679fffff5823d07ceb2b24dd6f2bfb0_0117300_m1_th.jpg

921 ms

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926 ms

twitter.png

twitter.png

231 ms

teleskope.jpg

teleskope.jpg

427 ms

zubehoer.jpg

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334 ms

spektiv_start.jpg

spektiv_start.jpg

236 ms

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sonstiges.jpg

336 ms

fernglas.jpg

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416 ms

zoom_start.jpg

zoom_start.jpg

325 ms

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403 ms

hexafoc.jpg

hexafoc.jpg

626 ms

ga-audiences

ga-audiences

34 ms

sprites.png

sprites.png

587 ms

DFB4248C90E852B.js

DFB4248C90E852B.js

236 ms

dsnr1xEUbJy+5cvHcOG3RYwIAAAC4Af+FsASNAA==

dsnr1xEUbJy+5cvHcOG3RYwIAAAC4Af+FsASNAA==

9 ms

hbAEjQA=

hbAEjQA=

8 ms

CLSXQ8+RjU3Z2JRlTQGZAjIFZArIFJApIFNM7QuiL4i+IPqC6OemHtTfBNQfsL+n+puABvJhIKCBgAbyYSDbDGSbQV8m26LJNgNBrAtiXRDCi57woie86AkvesKLnvCiJ7zorQtiKIihIIQUvaEghr3itKOvkUnBmv4gCCGFyaRg0RbREdEV0RNhiuiLGIhYFzEsbShOm6wKJUxZyxRKmEIJUyhhCiVMoYQplDDbsklHNukIQshgChlMIYMpZDCFDKaQwRQymEIGU8hgChlMIYMpZDAlfZldQXQF0RWEcMDsDv8LkjDfogABVME1bQAA

CLSXQ8+RjU3Z2JRlTQGZAjIFZArIFJApIFNM7QuiL4i+IPqC6OemHtTfBNQfsL+n+puABvJhIKCBgAbyYSDbDGSbQV8m26LJNgNBrAtiXRDCi57woie86AkvesKLnvCiJ7zorQtiKIihIIQUvaEghr3itKOvkUnBmv4gCCGFyaRg0RbREdEV0RNhiuiLGIhYFzEsbShOm6wKJUxZyxRKmEIJUyhhCiVMoYQplDDbsklHNukIQshgChlMIYMpZDCFDKaQwRQymEIGU8hgChlMIYMpZDAlfZldQXQF0RWEcMDsDv8LkjDfogABVME1bQAA

8 ms

DFB4248C90E852B-70x70.png

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80 ms

collect

collect

4 ms

Accessibility Review

telescopes.fr 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

telescopes.fr 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

telescopes.fr SEO score

91

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

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Telescopes.fr can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed French language. Our system also found out that Telescopes.fr 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

telescopes.fr

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