446 ms in total
30 ms
143 ms
273 ms
Click here to check amazing HETDEX content for United States. Otherwise, check out these important facts you probably never knew about hetdex.org
HETDEX will be the first major experiment to search for dark energy. It will use the giant Hobby-Eberly Telescope at McDonald Observatory and a set of spectrographs to map the three-dimensional positi...
Visit hetdex.orgWe analyzed Hetdex.org page load time and found that the first response time was 30 ms and then it took 416 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
hetdex.org performance score
name
value
score
weighting
Value3.0 s
50/100
10%
Value5.3 s
22/100
25%
Value3.0 s
94/100
10%
Value0 ms
100/100
30%
Value0.002
100/100
15%
Value3.0 s
96/100
10%
30 ms
6 ms
4 ms
18 ms
6 ms
Our browser made a total of 32 requests to load all elements on the main page. We found that 94% of them (30 requests) were addressed to the original Hetdex.org, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (62 ms) belongs to the original domain Hetdex.org.
Page size can be reduced by 229.8 kB (36%)
634.2 kB
404.4 kB
In fact, the total size of Hetdex.org main page is 634.2 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. 40% of websites need less resources to load. Images take 347.9 kB which makes up the majority of the site volume.
Potential reduce by 12.5 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. 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 12.5 kB or 71% of the original size.
Potential reduce by 24.7 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. HETDEX images are well optimized though.
Potential reduce by 180.2 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 180.2 kB or 71% of the original size.
Potential reduce by 12.5 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. Hetdex.org needs all CSS files to be minified and compressed as it can save up to 12.5 kB or 85% of the original size.
Number of requests can be reduced by 6 (19%)
31
25
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HETDEX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
hetdex.org
30 ms
modal.js
6 ms
modal.css
4 ms
prototype.js
18 ms
hetdex-styles.css
6 ms
AC_RunActiveContent.js
6 ms
jwplayer.js
28 ms
swfobject.js
7 ms
xajax.js
9 ms
ga.js
20 ms
body_background.jpg
13 ms
overlay.png
15 ms
close.gif
13 ms
container.gif
13 ms
logo_hetdex.jpg
16 ms
main_nav.gif
14 ms
sidebar1_hex_home.gif
16 ms
HET_bluesky_GTAG.jpg
61 ms
Dark_Energy_640_still.jpg
56 ms
d_gary&phillip.jpg
60 ms
external.png
56 ms
McDO_UT_Lckp_E_RGB.png
57 ms
lmu_usm.jpg
59 ms
AIP-logo.jpg
60 ms
mpe-bw.jpg
60 ms
texas-a+m.jpg
61 ms
psulogo.jpg
62 ms
IAG_Logo.png
61 ms
2258_ox_brand_blue_pos_rect.gif
62 ms
nsf-logo.png
58 ms
planck_logo.gif
59 ms
__utm.gif
14 ms
hetdex.org accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
hetdex.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
hetdex.org SEO score
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
Document uses plugins
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hetdex.org 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 Hetdex.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.
hetdex.org
Open Graph description is not detected on the main page of HETDEX. 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: