1.8 sec in total
20 ms
1.6 sec
176 ms
Welcome to galaxyzoo.org homepage info - get ready to check Galaxyzoo best content for United States right away, or after learning these important things about galaxyzoo.org
Visit galaxyzoo.orgWe analyzed Galaxyzoo.org page load time and found that the first response time was 20 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
galaxyzoo.org performance score
name
value
score
weighting
Value19.4 s
0/100
10%
Value25.9 s
0/100
25%
Value20.5 s
0/100
10%
Value8,000 ms
0/100
30%
Value0.005
100/100
15%
Value28.7 s
0/100
10%
20 ms
182 ms
11 ms
9 ms
10 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 40% of them (21 requests) were addressed to the original Galaxyzoo.org, 21% (11 requests) were made to Static.zooniverse.org and 15% (8 requests) were made to Galaxyzoo.org.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (867 ms) relates to the external source Galaxyzoo.org.s3.amazonaws.com.
Page size can be reduced by 739.0 kB (54%)
1.4 MB
623.0 kB
In fact, the total size of Galaxyzoo.org 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. Javascripts take 660.4 kB which makes up the majority of the site volume.
Potential reduce by 7.8 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 1.2 kB, which is 11% 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 7.8 kB or 67% of the original size.
Potential reduce by 14.5 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. Galaxyzoo images are well optimized though.
Potential reduce by 478.7 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 478.7 kB or 72% of the original size.
Potential reduce by 238.0 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. Galaxyzoo.org needs all CSS files to be minified and compressed as it can save up to 238.0 kB or 90% of the original size.
Number of requests can be reduced by 4 (14%)
29
25
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Galaxyzoo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
galaxyzoo.org
20 ms
www.galaxyzoo.org
182 ms
application-2016-02-22_19-44-07.css
11 ms
font-awesome.min.css
9 ms
application-2016-02-22_19-44-07.js
10 ms
css
23 ms
gz_headerimage.jpg
132 ms
gtm.js
133 ms
ga.js
44 ms
proxy
39 ms
icons.png
14 ms
workflow.png
14 ms
examples.jpg
24 ms
gz-icon-hubble.png
21 ms
gz-icon-sdss.png
20 ms
gz-icon-ukidss.png
27 ms
gz-icon-quizzes.png
23 ms
zoo-icon.png
25 ms
gz_logo.png
27 ms
gz_slider1.jpg
25 ms
gz_headerimage.jpg
139 ms
icons.png
133 ms
workflow.png
137 ms
api-cb2090271be4f48643a394566a5e4d4b.js
81 ms
gz-icon-sdss.png
125 ms
gz-icon-hubble.png
129 ms
gz-icon-quizzes.png
159 ms
examples.jpg
179 ms
zoo-icon.png
162 ms
gz_slider1.jpg
182 ms
gz-icon-ukidss.png
179 ms
gz_logo.png
264 ms
__utm.gif
12 ms
fontawesome-webfont.woff
7 ms
50251c3b516bcb6ecb000002
143 ms
50251c3b516bcb6ecb000001
150 ms
current_user
150 ms
subjects
168 ms
recents
149 ms
analytics.js
12 ms
J163305.12%2B114541.0_thumbnail.jpeg
80 ms
J075150.78%2B274203.3_thumbnail.jpeg
867 ms
J093319.97%2B264650.8_thumbnail.jpeg
54 ms
collect
11 ms
J235955.50%2B003042.2_standard.jpeg
69 ms
J213312.28-002425.0_standard.jpeg
99 ms
J154526.93%2B070649.0_standard.jpeg
152 ms
J214954.49%2B003617.0_standard.jpeg
95 ms
J221311.27-003924.5_standard.jpeg
131 ms
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collect
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collect
11 ms
galaxyzoo.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
galaxyzoo.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
galaxyzoo.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Galaxyzoo.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Galaxyzoo.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.
galaxyzoo.org
Open Graph description is not detected on the main page of Galaxyzoo. 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: