421 ms in total
91 ms
206 ms
124 ms
Click here to check amazing MESSENGER Jhuapl content for United States. Otherwise, check out these important facts you probably never knew about messenger.jhuapl.edu
Understanding Mercury and how it formed is critical to better understanding the conditions on and evolution of the inner planets. Fortified against the searing conditions near the Sun, MESSENGER (MErc...
Visit messenger.jhuapl.eduWe analyzed Messenger.jhuapl.edu page load time and found that the first response time was 91 ms and then it took 330 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
messenger.jhuapl.edu performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value18.6 s
0/100
25%
Value4.4 s
74/100
10%
Value1,100 ms
23/100
30%
Value0.004
100/100
15%
Value19.1 s
3/100
10%
91 ms
27 ms
20 ms
18 ms
20 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 95% of them (35 requests) were addressed to the original Messenger.jhuapl.edu, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (91 ms) belongs to the original domain Messenger.jhuapl.edu.
Page size can be reduced by 147.3 kB (34%)
431.0 kB
283.7 kB
In fact, the total size of Messenger.jhuapl.edu main page is 431.0 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. 20% of websites need less resources to load. Images take 329.3 kB which makes up the majority of the site volume.
Potential reduce by 19.5 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 5.4 kB, which is 23% 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 19.5 kB or 82% of the original size.
Potential reduce by 75.7 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, MESSENGER Jhuapl needs image optimization as it can save up to 75.7 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 47.6 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 47.6 kB or 66% of the original size.
Potential reduce by 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. Messenger.jhuapl.edu needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 82% of the original size.
Number of requests can be reduced by 12 (33%)
36
24
The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MESSENGER Jhuapl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
messenger.jhuapl.edu
91 ms
header.js
27 ms
header_styles.css
20 ms
styles.css
18 ms
slideshow2.js
20 ms
content.js
29 ms
analytics.js
21 ms
messenger_logo.jpg
36 ms
nasa-logo.png
34 ms
ciw.png
38 ms
apl-logo.png
34 ms
app_banner.gif
34 ms
quickmap_banner.gif
34 ms
QnA_banner.gif
35 ms
orbinst_end_banner_ani.gif
36 ms
where_messenger.gif
34 ms
where_mercury.gif
36 ms
enews.gif
36 ms
File0a.jpg
62 ms
3c.gif
39 ms
9c.gif
40 ms
2c.gif
36 ms
1c.gif
38 ms
0c.gif
41 ms
5c.gif
43 ms
4c.gif
43 ms
8c.gif
42 ms
6f862571-0761-4f65-8eea-b1fa33779853.jpg
43 ms
Final_impact_20150603.png
50 ms
15-01479_MESSENGER_38.jpg
50 ms
caloris-perspective_w-text.jpg
51 ms
First_and_Last.jpg
52 ms
spacer.gif
52 ms
collect
12 ms
mercury_on.jpg
14 ms
gallery_on.jpg
11 ms
File1a.jpg
20 ms
messenger.jhuapl.edu 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.
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 IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
messenger.jhuapl.edu SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Messenger.jhuapl.edu 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 Messenger.jhuapl.edu 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.
messenger.jhuapl.edu
Open Graph description is not detected on the main page of MESSENGER Jhuapl. 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: