2.5 sec in total
429 ms
1.9 sec
124 ms
Click here to check amazing Pma Caltech content for United States. Otherwise, check out these important facts you probably never knew about pma.caltech.edu
Visit pma.caltech.eduWe analyzed Pma.caltech.edu page load time and found that the first response time was 429 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
pma.caltech.edu performance score
name
value
score
weighting
Value3.0 s
51/100
10%
Value12.9 s
0/100
25%
Value9.0 s
15/100
10%
Value2,280 ms
5/100
30%
Value0.007
100/100
15%
Value15.1 s
7/100
10%
429 ms
189 ms
199 ms
199 ms
204 ms
Our browser made a total of 76 requests to load all elements on the main page. We found that 82% of them (62 requests) were addressed to the original Pma.caltech.edu, 14% (11 requests) were made to S3-us-west-1.amazonaws.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (876 ms) belongs to the original domain Pma.caltech.edu.
Page size can be reduced by 576.1 kB (62%)
923.3 kB
347.2 kB
In fact, the total size of Pma.caltech.edu main page is 923.3 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. CSS take 330.3 kB which makes up the majority of the site volume.
Potential reduce by 60.2 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 60.2 kB or 87% of the original size.
Potential reduce by 10.8 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. Pma Caltech images are well optimized though.
Potential reduce by 213.0 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 213.0 kB or 69% of the original size.
Potential reduce by 292.1 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. Pma.caltech.edu needs all CSS files to be minified and compressed as it can save up to 292.1 kB or 88% of the original size.
Number of requests can be reduced by 47 (63%)
75
28
The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pma 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 21 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.
pma.caltech.edu
429 ms
system.base.css
189 ms
system.menus.css
199 ms
system.messages.css
199 ms
system.theme.css
204 ms
views_slideshow.css
210 ms
calendar_multiday.css
281 ms
date.css
438 ms
datepicker.1.7.css
263 ms
skin.css
268 ms
field.css
277 ms
master_calendar.css
282 ms
node.css
330 ms
search.css
340 ms
user.css
353 ms
views.css
353 ms
colorbox_style.css
357 ms
ctools.css
398 ms
panels.css
413 ms
shib_auth.css
447 ms
views_slideshow_controls_text.css
435 ms
views_slideshow_cycle.css
435 ms
divisions_banner.css
466 ms
ds_2col.css
487 ms
style.css
549 ms
divisions.css
876 ms
divisions_print.css
627 ms
divisions_course.css
521 ms
working_papers.css
534 ms
jquery.min.js
33 ms
jquery.once.js
560 ms
drupal.js
669 ms
views_slideshow.js
668 ms
divisions_social_media_footer.js
667 ms
jquery.jcarousel.min.js
703 ms
media_colorbox.js
746 ms
jquery.colorbox-min.js
787 ms
colorbox.js
746 ms
analytics.js
23 ms
colorbox_style.js
612 ms
colorbox_load.js
590 ms
jquery.cycle.all.js
720 ms
json2.js
715 ms
views_slideshow_cycle.js
724 ms
divisions_course.js
655 ms
divisions_banner.js
603 ms
page--front.js
671 ms
modernizr-2.6.1.min.js
677 ms
underscore-min.js
707 ms
divisions.js
666 ms
search-mag-white.png
83 ms
Alicea-Jason_and_Lee-Shu-Ping_7138_0.jpg
162 ms
orange-pixel.png
78 ms
carrot_right.png
96 ms
bg_tab.png
94 ms
math_matilde_marcolli.jpg
226 ms
moonjuplgs_a%20%282%29.jpg
182 ms
About_Us-BLURB-ORANGE.jpg
167 ms
feynman-diagrams-rev.jpg
167 ms
NEOWISE-NEWS-WEB.jpg
237 ms
PMAL-gw_global_detector_map_1000w.jpg
272 ms
hubble-galaxy_cluster_abell_68.jpg
322 ms
CALT-0041_web_banner_r1v2_ah.jpg
309 ms
Kasliwal-Mansi-8133-RT-NEWS-WEB.jpg
435 ms
LHC%20at%20CERN.jpg
389 ms
menu-button-dark.png
103 ms
caltech-new-logo.png
137 ms
slideshow-left-arrow.png
146 ms
slideshow-right-arrow.png
176 ms
menu-pointer.png
153 ms
collect
12 ms
VaudBook-webfont.woff
149 ms
VaudUltra-webfont.woff
137 ms
VaudExtraBold-webfont.woff
79 ms
LTCCaslonLongWeb.woff
287 ms
KievitSlabWebPro-Medium.woff
270 ms
pma.caltech.edu 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.
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
pma.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
pma.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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pma.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 Pma.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.
pma.caltech.edu
Open Graph description is not detected on the main page of Pma 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: