1.6 sec in total
645 ms
733 ms
220 ms
Click here to check amazing Clark Planetarium content for United States. Otherwise, check out these important facts you probably never knew about clarkplanetarium.org
Clark Planetarium offers free interactive exhibits, plus educational shows in the IMAX® and dome theatres. Learn about science, planet Earth and the ever-expansive Solar System at Clark Planetarium. ...
Visit clarkplanetarium.orgWe analyzed Clarkplanetarium.org page load time and found that the first response time was 645 ms and then it took 953 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.
clarkplanetarium.org performance score
name
value
score
weighting
Value5.0 s
9/100
10%
Value10.0 s
0/100
25%
Value8.6 s
17/100
10%
Value370 ms
70/100
30%
Value0
100/100
15%
Value15.3 s
7/100
10%
645 ms
8 ms
6 ms
10 ms
9 ms
Our browser made a total of 62 requests to load all elements on the main page. We found that 89% of them (55 requests) were addressed to the original Clarkplanetarium.org, 6% (4 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (645 ms) belongs to the original domain Clarkplanetarium.org.
Page size can be reduced by 163.4 kB (35%)
470.4 kB
307.0 kB
In fact, the total size of Clarkplanetarium.org main page is 470.4 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. 55% of websites need less resources to load. Images take 275.1 kB which makes up the majority of the site volume.
Potential reduce by 32.6 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 32.6 kB or 82% of the original size.
Potential reduce by 32.6 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, Clark Planetarium needs image optimization as it can save up to 32.6 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 48.6 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 48.6 kB or 51% of the original size.
Potential reduce by 49.6 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. Clarkplanetarium.org needs all CSS files to be minified and compressed as it can save up to 49.6 kB or 83% of the original size.
Number of requests can be reduced by 21 (34%)
61
40
The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clark Planetarium. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
clarkplanetarium.org
645 ms
core.css
8 ms
reset.css
6 ms
superfish.css
10 ms
blog.css
9 ms
style.css
10 ms
jquery.min.js
32 ms
modernizr.js
11 ms
swfobject_extended.js
11 ms
style.css
15 ms
analytics.js
26 ms
get_flash_player.gif
15 ms
bgStar.jpg
12 ms
bgGalaxy.gif
68 ms
Day22.gif
15 ms
branding.gif
13 ms
gNav.gif
16 ms
hNav.png
55 ms
hNavSubBG.png
53 ms
btnFind.png
56 ms
bg1pxGray.png
55 ms
bg1pxBtmBdr.png
56 ms
btnTheatre.png
59 ms
btnPricing.png
56 ms
bgCarousel.png
58 ms
btnArrows.png
58 ms
AA981.gif
58 ms
btnHansenHover.png
59 ms
btnBuyTickets.png
60 ms
005437e1a11b6a5d3647a52fe59ee973.gif
60 ms
1c69dc21be72ccbb69e7ae2d975a7ead.gif
60 ms
btnCosmicHover.png
63 ms
d376436aae6ecd3250ee75fc15565832.jpg
66 ms
Journey-Into-Space-098.jpg
65 ms
btnImaxHover.png
65 ms
6f83f160b78375eff362ebcf1d00bdd3.jpg
65 ms
NationalParksAdventure_98W.jpg
66 ms
2011NightVision981.jpg
67 ms
PLPPoster98.jpg
66 ms
4b755200700f30354238179ec54099801.gif
67 ms
The-Last-Reef-3d-098.jpg
67 ms
collect
33 ms
superfish.js
6 ms
supersubs.js
8 ms
jCarouselLite.js
6 ms
dc1cbfb892e6df352750decfe12ea5b51.gif
7 ms
3ca7560e2667c1543a6a3bb7b51d0e411.gif
33 ms
WAS98.jpg
33 ms
btnReadMore.png
32 ms
Chelyabinsk-Web-Feature.gif
39 ms
skyTonight.jpg
34 ms
members2.jpg
33 ms
btnJoinToday.png
34 ms
SpecialEventsandParties.jpg
36 ms
btnBookEvent.png
34 ms
dot.png
35 ms
btnNewsletter.png
34 ms
ajax-loading.gif
36 ms
btnSocial.png
38 ms
ga.js
31 ms
gtm.js
60 ms
__utm.gif
10 ms
clarkplanetarium.org accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Image elements do not have [alt] attributes
clarkplanetarium.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
clarkplanetarium.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clarkplanetarium.org 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 Clarkplanetarium.org 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.
clarkplanetarium.org
Open Graph data is detected on the main page of Clark Planetarium. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: