1.4 sec in total
14 ms
626 ms
783 ms
Visit aavso.org now to see the best up-to-date Aavso content for United States and also check out these interesting facts you probably never knew about aavso.org
The mission of the AAVSO is to enable anyone, anywhere, to participate in scientific discovery through variable star astronomy.
Visit aavso.orgWe analyzed Aavso.org page load time and found that the first response time was 14 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
aavso.org performance score
name
value
score
weighting
Value2.0 s
86/100
10%
Value7.6 s
4/100
25%
Value3.0 s
94/100
10%
Value140 ms
95/100
30%
Value0.271
46/100
15%
Value6.6 s
58/100
10%
14 ms
20 ms
302 ms
14 ms
15 ms
Our browser made a total of 103 requests to load all elements on the main page. We found that 96% of them (99 requests) were addressed to the original Aavso.org, 2% (2 requests) were made to Ssl.google-analytics.com and 1% (1 request) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (302 ms) belongs to the original domain Aavso.org.
Page size can be reduced by 440.8 kB (33%)
1.3 MB
889.1 kB
In fact, the total size of Aavso.org main page is 1.3 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 870.9 kB which makes up the majority of the site volume.
Potential reduce by 99.6 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 99.6 kB or 86% of the original size.
Potential reduce by 72.3 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. Aavso images are well optimized though.
Potential reduce by 144.0 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 144.0 kB or 74% of the original size.
Potential reduce by 124.9 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. Aavso.org needs all CSS files to be minified and compressed as it can save up to 124.9 kB or 83% of the original size.
Number of requests can be reduced by 64 (64%)
100
36
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aavso. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.
aavso.org
14 ms
www.aavso.org
20 ms
www.aavso.org
302 ms
book.css
14 ms
node.css
15 ms
defaults.css
18 ms
system.css
19 ms
system-menus.css
21 ms
user.css
19 ms
content-module.css
19 ms
ckeditor.css
21 ms
aavso.css
22 ms
chet.css
20 ms
date.css
22 ms
datepicker.1.7.css
23 ms
jquery.timeentry.css
24 ms
filefield.css
24 ms
mollom.css
24 ms
quote.css
24 ms
forum.css
25 ms
fieldgroup.css
26 ms
views.css
26 ms
ddblock.css
26 ms
base.css
27 ms
layout.css
30 ms
edit-links.css
29 ms
blocks.css
30 ms
comments.css
32 ms
nodes.css
31 ms
page.css
33 ms
style.css
36 ms
dropdown.css
35 ms
ddblock-cycle-upright40.css
38 ms
jquery.js
45 ms
drupal.js
39 ms
aavso.js
40 ms
googleanalytics.js
40 ms
image_caption.js
39 ms
jquery.cycle.all.min.js
38 ms
jquery.easing.1.1.1.js
39 ms
json2.pack.js
37 ms
ddblock.js
46 ms
aria-roles.js
46 ms
jquery.corner.js
45 ms
jquery.hoverIntent.minified.js
44 ms
marinellidropdown.js
45 ms
cse.js
171 ms
ga.js
157 ms
body_back2.gif
18 ms
searchback.jpg
19 ms
login-icon.gif
16 ms
menu-expanded.png
18 ms
header9.jpg
23 ms
title.png
20 ms
facebook-icon.png
20 ms
twitter-icon.png
21 ms
rss-icon.png
23 ms
logo.jpg
26 ms
leaf.gif
25 ms
biggestblueback.jpg
30 ms
St%20Louis%20skyline%20dusk.jpg
28 ms
UMen-lightcurve-green.png
30 ms
v404_cygni_creditESA_0.jpg
29 ms
Argelander_0.jpg
31 ms
Tyler%20Olcott.jpg
32 ms
transparent_bg.png
31 ms
St%20Louis%20skyline%20dusk.jpg
32 ms
UMen-lightcurve-green.png
33 ms
v404_cygni_creditESA_0.jpg
32 ms
Argelander_0.jpg
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Tyler%20Olcott.jpg
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doublegreenarrow.png
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greenarrow_sm.png
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orangebar.jpg
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bottomleftorangecorner.jpg
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orangearrowbutton.gif
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feed.png
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counter_back.png
39 ms
toprightorangecorner.jpg
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bluebarback.jpg
38 ms
Variable%20VLMs.png
44 ms
T%20CrB_0.png
47 ms
eclipse-illustration_0.jpg
40 ms
SN2010%20imposter_0.jpg
33 ms
jaavso401cover-generic-small.jpg
73 ms
nsf.png
35 ms
nasa.png
34 ms
SkyTel.png
38 ms
footer-top.jpg
35 ms
footer-middle.jpg
34 ms
menu-leaf.png
36 ms
footer-bottom.jpg
36 ms
tl.png
37 ms
tr.png
34 ms
orange-arrow.gif
34 ms
bl.png
50 ms
br.png
51 ms
dark-button.png
50 ms
menushadow.png
50 ms
blog-shadow.jpg
49 ms
jsapi
49 ms
__utm.gif
17 ms
aavso.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 input fields do not have accessible names
[role]s do not have all required [aria-*] attributes
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
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
aavso.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
aavso.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aavso.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Aavso.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.
aavso.org
Open Graph data is detected on the main page of Aavso. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: