Tools & Wizards About Us
celestia4all.com screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 46

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

celestia4all.com

HOME - SkyMarvels.com

Page Load Speed

4.4 sec in total

First Response

329 ms

Resources Loaded

3.2 sec

Page Rendered

934 ms

celestia4all.com screenshot

About Website

Click here to check amazing Celestia 4 All content. Otherwise, check out these important facts you probably never knew about celestia4all.com

SkyMarvels HOME. SkyMarvels: Your Key to the Sky and the Universe! Your gateway to astronomy interactives, animations and videos galore! Streak through the universe in stunning 3-D! Trek to planet...

Visit celestia4all.com

Key Findings

We analyzed Celestia4all.com page load time and found that the first response time was 329 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

celestia4all.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

19/100

10%

LCP (Largest Contentful Paint)

Value26.1 s

0/100

25%

SI (Speed Index)

Value12.2 s

4/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value29.5 s

0/100

10%

Network Requests Diagram

celestia4all.com

329 ms

www.skymarvels.com

750 ms

celestia4all%20001.css

130 ms

celestia4all%20002%20SkyMarvelsBanr.jpg

334 ms

Top%20Right%20Earth.jpg

286 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Celestia4all.com, 94% (67 requests) were made to Skymarvels.com and 3% (2 requests) were made to Paypalobjects.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Skymarvels.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 139.3 kB (39%)

Content Size

355.2 kB

After Optimization

215.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Celestia4all.com main page is 355.2 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. 30% of websites need less resources to load. Images take 232.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 56.3 kB

  • Original 68.8 kB
  • After minification 54.7 kB
  • After compression 12.5 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. This page needs HTML code to be minified as it can gain 14.1 kB, which is 21% 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 56.3 kB or 82% of the original size.

Image Optimization

-15%

Potential reduce by 33.8 kB

  • Original 232.7 kB
  • After minification 198.9 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, Celestia 4 All needs image optimization as it can save up to 33.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-92%

Potential reduce by 49.2 kB

  • Original 53.7 kB
  • After minification 27.1 kB
  • After compression 4.5 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. Celestia4all.com needs all CSS files to be minified and compressed as it can save up to 49.2 kB or 92% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (19%)

Requests Now

69

After Optimization

56

  • Images
  • CSS

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Celestia 4 All. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

celestia4all.com

celestia4all.com

329 ms

www.skymarvels.com

www.skymarvels.com

750 ms

celestia4all%20001.css

celestia4all%20001.css

130 ms

celestia4all%20002%20SkyMarvelsBanr.jpg

celestia4all%20002%20SkyMarvelsBanr.jpg

334 ms

Top%20Right%20Earth.jpg

Top%20Right%20Earth.jpg

286 ms

Menu%20Bar%20Main%20002.jpg

Menu%20Bar%20Main%20002.jpg

291 ms

MenuTopWhole%20003.gif

MenuTopWhole%20003.gif

291 ms

MenuBottomWhole%20003.gif

MenuBottomWhole%20003.gif

290 ms

Galax01.gif

Galax01.gif

284 ms

KeyDescender.jpg

KeyDescender.jpg

438 ms

KeyEnd.jpg

KeyEnd.jpg

438 ms

TopStreak.jpg

TopStreak.jpg

429 ms

BottomStreak.jpg

BottomStreak.jpg

443 ms

StarsTop.gif

StarsTop.gif

423 ms

StarsBottom.gif

StarsBottom.gif

431 ms

menu-homeMouseOver.gif

menu-homeMouseOver.gif

563 ms

menu-introMouseOver.gif

menu-introMouseOver.gif

564 ms

menu-newsMouseOver.gif

menu-newsMouseOver.gif

564 ms

menu-galleryMouseOver.gif

menu-galleryMouseOver.gif

561 ms

menu-ourshopMouseOver.gif

menu-ourshopMouseOver.gif

564 ms

menu-freebiesMouseOver.gif

menu-freebiesMouseOver.gif

944 ms

menu-tipsMouseOver.gif

menu-tipsMouseOver.gif

737 ms

menu-learningctrMouseOver.gif

menu-learningctrMouseOver.gif

876 ms

menu-helpMouseOver.gif

menu-helpMouseOver.gif

875 ms

menu-linksMouseOver.gif

menu-linksMouseOver.gif

886 ms

menu-creditsMouseOver.gif

menu-creditsMouseOver.gif

941 ms

menu-legalMouseOver.gif

menu-legalMouseOver.gif

1030 ms

menu-contactusMouseOver.gif

menu-contactusMouseOver.gif

1258 ms

MenuVertical%20Separator%20Left.jpg

MenuVertical%20Separator%20Left.jpg

973 ms

MenuVertical%20Separator%20Right.jpg

MenuVertical%20Separator%20Right.jpg

1028 ms

Rotating%20Earth%20Final.gif

Rotating%20Earth%20Final.gif

1461 ms

Search%20Button%20002%20small.jpg

Search%20Button%20002%20small.jpg

1263 ms

SVSmall.jpg

SVSmall.jpg

1127 ms

Exclamation%20Flush%20Left%20Small%20001.gif

Exclamation%20Flush%20Left%20Small%20001.gif

1248 ms

spectrum%20001.jpg

spectrum%20001.jpg

1093 ms

PageSymbol.gif

PageSymbol.gif

1161 ms

Earth

Earth

314 ms

btn_donateCC_LG.gif

btn_donateCC_LG.gif

163 ms

pixel.gif

pixel.gif

180 ms

StarsTop%20Background.gif

StarsTop%20Background.gif

1102 ms

SkyMarvels%20Banner%20002.png

SkyMarvels%20Banner%20002.png

1139 ms

BoxTabTopLeftBanr.png

BoxTabTopLeftBanr.png

1413 ms

226-wide%20Gradient.jpg

226-wide%20Gradient.jpg

1282 ms

BoxTabTopMiddleWide.gif

BoxTabTopMiddleWide.gif

1146 ms

434-wide%20Gradient.jpg

434-wide%20Gradient.jpg

1308 ms

Molecule%20TINY%20-%20SkyMarvels.gif

Molecule%20TINY%20-%20SkyMarvels.gif

1250 ms

BlackSpacer.gif

BlackSpacer.gif

1280 ms

SkyViewing%20-%20SkyMarvels.gif

SkyViewing%20-%20SkyMarvels.gif

1244 ms

PlanetComparison.jpg

PlanetComparison.jpg

1367 ms

Milky%20Way%20Anatomy%20Poster%20Website%20Small%20003.jpg

Milky%20Way%20Anatomy%20Poster%20Website%20Small%20003.jpg

1457 ms

Our%20Corner%20of%20the%20Cosmos%20Small.jpg

Our%20Corner%20of%20the%20Cosmos%20Small.jpg

1401 ms

TimeZonesLeftSmall.jpg

TimeZonesLeftSmall.jpg

1377 ms

TidesRightSmall.jpg

TidesRightSmall.jpg

1404 ms

Earth%20Structure.jpg

Earth%20Structure.jpg

1346 ms

Celes-Tools%20004.jpg

Celes-Tools%20004.jpg

1384 ms

celeSTARrium%20004.jpg

celeSTARrium%20004.jpg

1416 ms

UCS%20004.jpg

UCS%20004.jpg

1410 ms

RedOrbitLogo.gif

RedOrbitLogo.gif

1429 ms

New.gif

New.gif

1373 ms

First.gif

First.gif

1258 ms

Full.gif

Full.gif

1154 ms

Last.gif

Last.gif

1152 ms

ISS001.gif

ISS001.gif

1163 ms

Ovation003.jpg

Ovation003.jpg

1120 ms

Catalog%20Button%20003.png

Catalog%20Button%20003.png

1134 ms

Exclamation%20Flush%20Left%20001.gif

Exclamation%20Flush%20Left%20001.gif

1103 ms

Solar%20Eclipse%20Finder%200003%20tiniest.jpg

Solar%20Eclipse%20Finder%200003%20tiniest.jpg

1079 ms

Lunar%20Eclipse%20Finder%200002%20tiniest.jpg

Lunar%20Eclipse%20Finder%200002%20tiniest.jpg

1103 ms

Green%20Earth%20black%20background%20002.jpg

Green%20Earth%20black%20background%20002.jpg

1036 ms

BoxTabTopRightNarrow.gif

BoxTabTopRightNarrow.gif

1005 ms

horz_master_120pixels.gif

horz_master_120pixels.gif

986 ms

Accessibility Review

celestia4all.com accessibility score

60

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

celestia4all.com best practices score

46

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

celestia4all.com SEO score

58

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Celestia4all.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Celestia4all.com 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

celestia4all.com

Open Graph description is not detected on the main page of Celestia 4 All. 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: