2.9 sec in total
343 ms
2.2 sec
283 ms
Visit sealevel-nexus.jpl.nasa.gov now to see the best up-to-date Sea Level Nexus JPL Nasa content for United States and also check out these interesting facts you probably never knew about sealevel-nexus.jpl.nasa.gov
Visit sealevel-nexus.jpl.nasa.govWe analyzed Sealevel-nexus.jpl.nasa.gov page load time and found that the first response time was 343 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
sealevel-nexus.jpl.nasa.gov performance score
name
value
score
weighting
Value2.1 s
81/100
10%
Value5.0 s
27/100
25%
Value2.4 s
98/100
10%
Value2,810 ms
3/100
30%
Value0
100/100
15%
Value5.5 s
71/100
10%
343 ms
421 ms
473 ms
238 ms
371 ms
Our browser made a total of 21 requests to load all elements on the main page. We found that 95% of them (20 requests) were addressed to the original Sealevel-nexus.jpl.nasa.gov, 5% (1 request) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (646 ms) belongs to the original domain Sealevel-nexus.jpl.nasa.gov.
Page size can be reduced by 883.2 kB (64%)
1.4 MB
493.0 kB
In fact, the total size of Sealevel-nexus.jpl.nasa.gov 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. 25% of websites need less resources to load. HTML takes 438.9 kB which makes up the majority of the site volume.
Potential reduce by 357.6 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 357.6 kB or 81% of the original size.
Potential reduce by 16.4 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. Sea Level Nexus JPL Nasa images are well optimized though.
Potential reduce by 161.1 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 161.1 kB or 67% of the original size.
Potential reduce by 348.0 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. Sealevel-nexus.jpl.nasa.gov needs all CSS files to be minified and compressed as it can save up to 348.0 kB or 85% of the original size.
Number of requests can be reduced by 11 (58%)
19
8
The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sea Level Nexus JPL Nasa. 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 from 8 to 1 for CSS and as a result speed up the page load time.
sealevel-nexus.jpl.nasa.gov
343 ms
sealevel-nexus.jpl.nasa.gov
421 ms
manifest.css
473 ms
toolspecific.css
238 ms
jquery.fancybox.css
371 ms
public_manifest.js
646 ms
not_ie8_manifest.js
452 ms
jquery.fancybox.js
382 ms
mb_manifest.js
381 ms
addthis_widget.js
42 ms
manifest.css
258 ms
toolspecific.css
117 ms
jquery.fancybox.css
219 ms
print.css
129 ms
logo_nasa_trio_white@2x.png
203 ms
logo_nasa_trio_black@2x.png
204 ms
menu_button_jpl@2x.png
124 ms
social_media_sprite.png
125 ms
1_1_DAT_2.jpg
387 ms
envelope.png
201 ms
print.css
69 ms
sealevel-nexus.jpl.nasa.gov 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.
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
sealevel-nexus.jpl.nasa.gov best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
sealevel-nexus.jpl.nasa.gov SEO score
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sealevel-nexus.jpl.nasa.gov 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 Sealevel-nexus.jpl.nasa.gov 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.
sealevel-nexus.jpl.nasa.gov
Open Graph description is not detected on the main page of Sea Level Nexus JPL Nasa. 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: