2.6 sec in total
235 ms
2.1 sec
172 ms
Visit ligo.caltech.edu now to see the best up-to-date LIGO Caltech content for United States and also check out these interesting facts you probably never knew about ligo.caltech.edu
The Laser Interferometer Gravitational-Wave Observatory (LIGO) consists of two widely separated installations within the United States — one in Hanford Washington and the other in Livingston, Louisian...
Visit ligo.caltech.eduWe analyzed Ligo.caltech.edu page load time and found that the first response time was 235 ms and then it took 2.3 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.
ligo.caltech.edu performance score
name
value
score
weighting
Value2.5 s
69/100
10%
Value3.8 s
54/100
25%
Value4.1 s
79/100
10%
Value30 ms
100/100
30%
Value0.367
29/100
15%
Value4.9 s
77/100
10%
235 ms
567 ms
72 ms
308 ms
217 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 79% of them (26 requests) were addressed to the original Ligo.caltech.edu, 12% (4 requests) were made to Fonts.gstatic.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Ligo.caltech.edu.
Page size can be reduced by 437.1 kB (19%)
2.3 MB
1.9 MB
In fact, the total size of Ligo.caltech.edu main page is 2.3 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. 30% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 16.9 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 16.9 kB or 74% of the original size.
Potential reduce by 10.3 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. LIGO Caltech images are well optimized though.
Potential reduce by 108.0 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 108.0 kB or 59% of the original size.
Potential reduce by 302.0 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. Ligo.caltech.edu needs all CSS files to be minified and compressed as it can save up to 302.0 kB or 91% of the original size.
We found no issues to fix!
26
26
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LIGO Caltech. According to our analytics all requests are already optimized.
ligo.caltech.edu
235 ms
www.ligo.caltech.edu
567 ms
css
72 ms
application-ab1d0419d3e5e0f832031e2e58a42f27.css
308 ms
ligo_signals-1638717264243aca66a201c1f0d50559.png
217 ms
DetectionSlide.jpg
575 ms
DetectionSlide.jpg
434 ms
DetectionSlide.jpg
653 ms
DetectionSlide.jpg
839 ms
ligo20160211_Tn.jpg
712 ms
ligo20160211_Tn.jpg
616 ms
ligo20160211_Tn.jpg
855 ms
ligo20160211_Tn.jpg
931 ms
ligoChipSlide.jpg
817 ms
ligoChipSlide.jpg
745 ms
ligoChipSlide.jpg
784 ms
ligoChipSlide.jpg
836 ms
application-ee380013684e1a3491edffdc74bc9484.js
933 ms
what_slide-ce3596915df0767051e5d7d29c27958a.jpg
1216 ms
congressional-testimony.png
1018 ms
footer_caltech-dffffad68d75521d67f82d4d77917573.png
990 ms
footer_mit-1089305c79c9fb3f86d3c36e6246efe5.png
991 ms
footer_nsf-b095d1e913dd555437f6682a15d70afb.png
1001 ms
footer_lsc-f75e18cb88af4537a57f048612242fd5.png
1004 ms
analytics.js
73 ms
purple_page_background.jpg
1017 ms
purple_site_navigation_bar.jpg
704 ms
cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff
84 ms
DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff
99 ms
k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff
107 ms
-SXnV4mZjf4oh1IBw13WZw.woff
128 ms
fontawesome-webfont-f2a9004d897733ee518fb3d48f0fbb53.woff
794 ms
collect
16 ms
ligo.caltech.edu accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
ligo.caltech.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ligo.caltech.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ligo.caltech.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 Ligo.caltech.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.
ligo.caltech.edu
Open Graph description is not detected on the main page of LIGO Caltech. 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: