2.5 sec in total
498 ms
1.8 sec
198 ms
Click here to check amazing ISS Astroviewer content for Germany. Otherwise, check out these important facts you probably never knew about iss.astroviewer.net
The current position of the ISS and its ground track.
Visit iss.astroviewer.netWe analyzed Iss.astroviewer.net page load time and found that the first response time was 498 ms and then it took 2 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.
iss.astroviewer.net performance score
name
value
score
weighting
Value1.7 s
93/100
10%
Value1.7 s
99/100
25%
Value2.7 s
96/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value1.7 s
100/100
10%
498 ms
121 ms
424 ms
43 ms
204 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 24% of them (14 requests) were addressed to the original Iss.astroviewer.net, 45% (26 requests) were made to Maps.googleapis.com and 10% (6 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (498 ms) belongs to the original domain Iss.astroviewer.net.
Page size can be reduced by 417.4 kB (57%)
733.6 kB
316.2 kB
In fact, the total size of Iss.astroviewer.net main page is 733.6 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. 50% of websites need less resources to load. Javascripts take 540.7 kB which makes up the majority of the site volume.
Potential reduce by 33.9 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 33.9 kB or 86% of the original size.
Potential reduce by 8.0 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. ISS Astroviewer images are well optimized though.
Potential reduce by 362.8 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 362.8 kB or 67% of the original size.
Potential reduce by 12.7 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. Iss.astroviewer.net needs all CSS files to be minified and compressed as it can save up to 12.7 kB or 81% of the original size.
Number of requests can be reduced by 31 (58%)
53
22
The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISS Astroviewer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
iss.astroviewer.net
498 ms
iss.css
121 ms
orbit
424 ms
js
43 ms
daynightoverlay.js
204 ms
orbit.js
311 ms
slim_base.css
117 ms
nav_shinybuttons.css
189 ms
basemod.css
205 ms
content.css
306 ms
bg_blue.gif
120 ms
av-iss-logo.png
105 ms
iss-schematic2a.png
106 ms
background.png
108 ms
background_active.png
107 ms
common.js
20 ms
map.js
20 ms
util.js
81 ms
geometry.js
78 ms
poly.js
79 ms
marker.js
77 ms
StaticMapService.GetMapImage
150 ms
onion.js
34 ms
ViewportInfoService.GetViewportInfo
71 ms
stats.js
66 ms
transparent.png
64 ms
kh
62 ms
kh
63 ms
controls.js
53 ms
ViewportInfoService.GetViewportInfo
55 ms
kh
95 ms
kh
95 ms
kh
96 ms
kh
92 ms
undo_poly.png
71 ms
css
48 ms
google4.png
44 ms
crosshair.png
140 ms
vt
16 ms
vt
13 ms
vt
14 ms
vt
16 ms
vt
15 ms
vt
16 ms
vt
24 ms
vt
24 ms
vt
29 ms
vt
27 ms
vt
27 ms
vt
29 ms
mapcnt6.png
20 ms
sv5.png
29 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
33 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
51 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
60 ms
d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf
59 ms
google_white5.png
21 ms
AuthenticationService.Authenticate
31 ms
iss.astroviewer.net 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.
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
Form elements do not have associated labels
iss.astroviewer.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
iss.astroviewer.net SEO score
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 Iss.astroviewer.net 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 Iss.astroviewer.net 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.
iss.astroviewer.net
Open Graph description is not detected on the main page of ISS Astroviewer. 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: