1.4 sec in total
368 ms
852 ms
135 ms
Visit biophot.caltech.edu now to see the best up-to-date Biophot Caltech content for United States and also check out these interesting facts you probably never knew about biophot.caltech.edu
Biophotonics Laboratory at Caltech
Visit biophot.caltech.eduWe analyzed Biophot.caltech.edu page load time and found that the first response time was 368 ms and then it took 987 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
biophot.caltech.edu performance score
name
value
score
weighting
Value3.8 s
27/100
10%
Value4.0 s
48/100
25%
Value3.8 s
84/100
10%
Value100 ms
98/100
30%
Value0
100/100
15%
Value4.8 s
78/100
10%
368 ms
138 ms
98 ms
287 ms
269 ms
Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Biophot.caltech.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (400 ms) belongs to the original domain Biophot.caltech.edu.
Page size can be reduced by 44.6 kB (25%)
178.6 kB
134.0 kB
In fact, the total size of Biophot.caltech.edu main page is 178.6 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. Only 5% of websites need less resources to load. Images take 161.9 kB which makes up the majority of the site volume.
Potential reduce by 9.5 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 2.4 kB, which is 19% 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 9.5 kB or 74% of the original size.
Potential reduce by 31.9 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, Biophot Caltech needs image optimization as it can save up to 31.9 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 3.2 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. Biophot.caltech.edu needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 85% of the original size.
We found no issues to fix!
10
10
The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biophot Caltech. According to our analytics all requests are already optimized.
biophot.caltech.edu
368 ms
styles.css
138 ms
background.jpg
98 ms
top2.jpg
287 ms
MooreLab1.jpg
269 ms
fpm_100px.jpg
240 ms
epetri4.jpg
234 ms
om.jpg
352 ms
WFOV_A.jpg
400 ms
tsopc.jpg
394 ms
cdps.jpg
394 ms
biophot.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-*] attributes do not match their roles
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
biophot.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
biophot.caltech.edu SEO score
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
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Biophot.caltech.edu 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 Biophot.caltech.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
biophot.caltech.edu
Open Graph description is not detected on the main page of Biophot 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: