3.4 sec in total
203 ms
2.9 sec
217 ms
Visit aps.anl.gov now to see the best up-to-date APS Anl content for United States and also check out these interesting facts you probably never knew about aps.anl.gov
Advanced Photon Source - an Office of Science user facility
Visit aps.anl.govWe analyzed Aps.anl.gov page load time and found that the first response time was 203 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
aps.anl.gov performance score
name
value
score
weighting
Value2.2 s
78/100
10%
Value3.4 s
68/100
25%
Value2.8 s
96/100
10%
Value350 ms
73/100
30%
Value0.969
2/100
15%
Value6.4 s
60/100
10%
203 ms
1949 ms
67 ms
83 ms
133 ms
Our browser made a total of 70 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Aps.anl.gov, 89% (62 requests) were made to Www1.aps.anl.gov and 3% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Www1.aps.anl.gov.
Page size can be reduced by 396.9 kB (18%)
2.3 MB
1.9 MB
In fact, the total size of Aps.anl.gov 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. 35% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 38.3 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 7.7 kB, which is 17% 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 38.3 kB or 84% of the original size.
Potential reduce by 52.3 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. APS Anl images are well optimized though.
Potential reduce by 105.4 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 105.4 kB or 72% of the original size.
Potential reduce by 200.9 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. Aps.anl.gov needs all CSS files to be minified and compressed as it can save up to 200.9 kB or 83% of the original size.
Number of requests can be reduced by 41 (63%)
65
24
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of APS Anl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.
aps.anl.gov
203 ms
www1.aps.anl.gov
1949 ms
system.base.css
67 ms
jquery.ui.core.min.css
83 ms
jquery.ui.theme.min.css
133 ms
ldap_user.css
94 ms
collapsiblock.css
94 ms
date.css
107 ms
datepicker.1.7.css
118 ms
date_repeat_field.css
117 ms
field.css
120 ms
google_appliance.css
120 ms
node.css
132 ms
views.css
139 ms
ctools.css
140 ms
ldap_servers.admin.css
141 ms
taxonomy_access.css
143 ms
ddblock.css
156 ms
bootstrap.css
62 ms
overrides.min.css
179 ms
colors.css
160 ms
machine-status.css
162 ms
pages.css
162 ms
print.css
166 ms
style.css
179 ms
aps-red-banner.css
183 ms
font-awesome.min.css
209 ms
ddblock-cycle-upright10p.css
187 ms
jquery.min.js
68 ms
jquery.once.js
186 ms
drupal.js
229 ms
jquery-ui.min.js
89 ms
jquery.cookie.js
199 ms
form.js
199 ms
bootstrap.js
35 ms
collapsiblock.js
226 ms
image_caption.min.js
227 ms
captcha.js
253 ms
jquery.cycle.all.js
287 ms
json2.pack.js
252 ms
ddblock.js
255 ms
googleanalytics.js
235 ms
_collapse.js
209 ms
bootstrap.js
193 ms
analytics.js
92 ms
anl_logo_head.png
73 ms
hero-echo_0.jpg
171 ms
hero-chromium.jpg
502 ms
hero-RNA_0.jpg
195 ms
hero-oxide.jpg
203 ms
hero-porous%20materials.jpg
145 ms
hero-cerium.jpg
255 ms
hero-heart.jpg
437 ms
hero-castiron.jpg
247 ms
dots.png
220 ms
aps-home-middle-user-portal.jpg
248 ms
aps-home-documents.png
270 ms
aps-home-middle-highlight.jpg
275 ms
aps-home-middle-news.jpg
274 ms
aps-home-middle-beamline.jpg
300 ms
aps-home-middle-longRange.jpg
321 ms
aps-home-middle-upgrade.jpg
299 ms
aps-home-middle-publications.jpg
302 ms
logo-sc.png
322 ms
dots-active.png
261 ms
ProximaNova-Reg.ttf
340 ms
ProximaNova-Light.ttf
384 ms
fontawesome-webfont.woff
310 ms
collect
14 ms
collect
53 ms
aps.anl.gov 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.
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
The document uses <meta http-equiv="refresh">
aps.anl.gov best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
aps.anl.gov 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
Image elements do not have [alt] attributes
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aps.anl.gov 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 Aps.anl.gov 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.
aps.anl.gov
Open Graph description is not detected on the main page of APS Anl. 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: