3.6 sec in total
499 ms
2.9 sec
216 ms
Click here to check amazing Aphms Caltech content for United States. Otherwise, check out these important facts you probably never knew about aphms.caltech.edu
Visit aphms.caltech.eduWe analyzed Aphms.caltech.edu page load time and found that the first response time was 499 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
aphms.caltech.edu performance score
name
value
score
weighting
Value3.7 s
30/100
10%
Value6.9 s
6/100
25%
Value5.0 s
63/100
10%
Value130 ms
96/100
30%
Value0
100/100
15%
Value4.8 s
79/100
10%
499 ms
271 ms
137 ms
409 ms
142 ms
Our browser made a total of 65 requests to load all elements on the main page. We found that 86% of them (56 requests) were addressed to the original Aphms.caltech.edu, 6% (4 requests) were made to Google.com and 5% (3 requests) were made to News.eas.caltech.edu. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Aphms.caltech.edu.
Page size can be reduced by 247.6 kB (18%)
1.4 MB
1.1 MB
In fact, the total size of Aphms.caltech.edu 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 22.6 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. This page needs HTML code to be minified as it can gain 3.3 kB, which is 12% 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 22.6 kB or 79% of the original size.
Potential reduce by 127.4 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. Obviously, Aphms Caltech needs image optimization as it can save up to 127.4 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 60.4 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 60.4 kB or 56% of the original size.
Potential reduce by 37.1 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. Aphms.caltech.edu needs all CSS files to be minified and compressed as it can save up to 37.1 kB or 83% of the original size.
Number of requests can be reduced by 17 (27%)
64
47
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aphms Caltech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
aphms.caltech.edu
499 ms
all.css
271 ms
slimbox2.css
137 ms
jquery-1.4.2.min.js
409 ms
jquery.main.js
142 ms
slimbox2.js
142 ms
jsapi
44 ms
search.js
267 ms
13 ms
print.css
138 ms
default+en.css
4 ms
default+en.I.js
10 ms
andrei-faraon.jpg
438 ms
apms-logo.png
168 ms
aph-rotate-atwater.jpg
172 ms
aph-rotate8.jpg
306 ms
aph-rotate2.jpg
173 ms
aph-rotate3.jpg
173 ms
aph-rotate4.jpg
276 ms
aph-rotate5.jpg
438 ms
aph-rotate6.jpg
441 ms
aph-rotate7.jpg
442 ms
aph-rotate9.jpg
446 ms
aph-rotate-minnich.jpg
480 ms
ms-rotate1.jpg
440 ms
ms-rotate2.jpg
575 ms
ms-rotate3.jpg
641 ms
ms-rotate4.jpg
579 ms
ms-rotate5.jpg
721 ms
ms-rotate6.jpg
713 ms
ms-rotate7.jpg
750 ms
ms-rotate8.jpg
909 ms
apms-adtile-home.jpg
849 ms
people-rotate1.jpg
915 ms
people-rotate2.jpg
980 ms
people-rotate3.jpg
922 ms
people-rotate4.jpg
1015 ms
people-rotate5.jpg
1119 ms
people-rotate6.jpg
1246 ms
people-rotate7.jpg
1247 ms
people-rotate8.jpg
1328 ms
people-rotate9.jpg
1319 ms
engenious.jpg
1236 ms
bg-header.gif
1268 ms
bg-division.gif
1373 ms
home-icon.png
1377 ms
btn-search.png
1377 ms
aphms-logotype.png
1408 ms
engenious-metal-cover.jpg
274 ms
paul-dimotakis.jpg
275 ms
ga.js
26 ms
__utm.gif
12 ms
banner-1.jpg
1519 ms
banner-2.jpg
1443 ms
banner-3.jpg
1554 ms
banner-4.jpg
1492 ms
banner-5.jpg
1495 ms
banner-6.jpg
1426 ms
banner-7.jpg
1649 ms
banner-8.jpg
1445 ms
banner-9.jpg
1495 ms
none.gif
1361 ms
Caltech_LOGO-BLACK.png
1395 ms
bg-top.gif
1414 ms
divider8.gif
1458 ms
aphms.caltech.edu accessibility score
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-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
aphms.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
aphms.caltech.edu SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aphms.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 Aphms.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.
aphms.caltech.edu
Open Graph description is not detected on the main page of Aphms 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: