Tools & Wizards About Us
dark-star.it screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

dark-star.it

sito di astronomia generale, test strumentali, telescopi, montature astronomiche, fotografia planetaria, deep sky

Page Load Speed

3.8 sec in total

First Response

709 ms

Resources Loaded

2.8 sec

Page Rendered

276 ms

dark-star.it screenshot

About Website

Click here to check amazing Dark Star content for Italy. Otherwise, check out these important facts you probably never knew about dark-star.it

sito di astronomia generale: prove strumentali, fotografia astronomica, tecniche osservative, test, telescopi, fotografia astronomica, stelle doppie, autocostruzione

Visit dark-star.it

Key Findings

We analyzed Dark-star.it page load time and found that the first response time was 709 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

dark-star.it performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

43/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value4.5 s

83/100

10%

Network Requests Diagram

www.dark-star.it

709 ms

style.css

428 ms

theming.css

185 ms

web.css

439 ms

common,facebook,socialbookmark,counter,shoppingbasket

443 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 61% of them (23 requests) were addressed to the original Dark-star.it, 34% (13 requests) were made to Cdn.website-start.de and 5% (2 requests) were made to 104.sb.mywebsite-editor.com. The less responsive or slowest element that took the longest time to load (931 ms) belongs to the original domain Dark-star.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 115.3 kB (25%)

Content Size

453.9 kB

After Optimization

338.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dark-star.it main page is 453.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 296.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 93.9 kB

  • Original 112.4 kB
  • After minification 109.5 kB
  • After compression 18.5 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 93.9 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 730 B

  • Original 296.5 kB
  • After minification 295.7 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. Dark Star images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 18.9 kB

  • Original 38.7 kB
  • After minification 38.7 kB
  • After compression 19.7 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 18.9 kB or 49% of the original size.

CSS Optimization

-28%

Potential reduce by 1.7 kB

  • Original 6.3 kB
  • After minification 6.3 kB
  • After compression 4.6 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. Dark-star.it needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (57%)

Requests Now

37

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dark Star. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.dark-star.it

www.dark-star.it

709 ms

style.css

style.css

428 ms

theming.css

theming.css

185 ms

web.css

web.css

439 ms

common,facebook,socialbookmark,counter,shoppingbasket

common,facebook,socialbookmark,counter,shoppingbasket

443 ms

mobilenavigation.css

mobilenavigation.css

456 ms

logstate2-css.php

logstate2-css.php

451 ms

logstate-js.php

logstate-js.php

461 ms

web.js

web.js

867 ms

web.bundle.js

web.bundle.js

459 ms

mobilenavigation.js

mobilenavigation.js

528 ms

common,facebook,socialbookmark,counter,shoppingbasket

common,facebook,socialbookmark,counter,shoppingbasket

737 ms

757 ms

pfcsupport.js

pfcsupport.js

561 ms

background.jpg

background.jpg

420 ms

cache_60165047.jpg

cache_60165047.jpg

110 ms

print.css

print.css

103 ms

cache_52190064.JPG

cache_52190064.JPG

193 ms

cache_52477080.jpg

cache_52477080.jpg

312 ms

cache_52291125.jpeg

cache_52291125.jpeg

299 ms

cache_51927692.jpg

cache_51927692.jpg

299 ms

cache_74826391.JPG

cache_74826391.JPG

534 ms

cache_76234623.jpg

cache_76234623.jpg

309 ms

cache_76234666.jpg

cache_76234666.jpg

508 ms

facebook-share-icon.png

facebook-share-icon.png

509 ms

facebook.png

facebook.png

541 ms

twitter.png

twitter.png

484 ms

delicious.png

delicious.png

568 ms

digg.png

digg.png

672 ms

reddit.png

reddit.png

741 ms

folkd.png

folkd.png

733 ms

misterwong.png

misterwong.png

839 ms

stumbleupon.png

stumbleupon.png

767 ms

tumblr.png

tumblr.png

863 ms

diigo.png

diigo.png

909 ms

friendfeed.png

friendfeed.png

931 ms

printer.gif

printer.gif

99 ms

logo.gif

logo.gif

103 ms

Accessibility Review

dark-star.it accessibility score

71

Accessibility Issues

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dark-star.it best practices score

83

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

Page has valid source maps

SEO Factors

dark-star.it SEO score

75

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

High

robots.txt is not valid

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

    IT

  • Language Claimed

    IT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dark-star.it can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and it matches the claimed language. Our system also found out that Dark-star.it 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

dark-star.it

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