2.2 sec in total
274 ms
1.8 sec
186 ms
Click here to check amazing Photo S Lbl content for United States. Otherwise, check out these important facts you probably never knew about photos.lbl.gov
Berkeley Lab Photo Archive
Visit photos.lbl.govWe analyzed Photos.lbl.gov page load time and found that the first response time was 274 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
photos.lbl.gov performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value5.1 s
24/100
25%
Value4.5 s
72/100
10%
Value100 ms
98/100
30%
Value0.086
93/100
15%
Value5.9 s
65/100
10%
274 ms
64 ms
59 ms
59 ms
76 ms
Our browser made a total of 76 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Photos.lbl.gov, 47% (36 requests) were made to Cdn2.webdamdb.com and 26% (20 requests) were made to Cdn4.webdamdb.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Cdn2.webdamdb.com.
Page size can be reduced by 1.6 MB (60%)
2.6 MB
1.0 MB
In fact, the total size of Photos.lbl.gov main page is 2.6 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. 70% of websites need less resources to load. Javascripts take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 33.1 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 33.1 kB or 73% of the original size.
Potential reduce by 23.8 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. Photo S Lbl images are well optimized though.
Potential reduce by 1.3 MB
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 1.3 MB or 76% of the original size.
Potential reduce by 169.4 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. Photos.lbl.gov needs all CSS files to be minified and compressed as it can save up to 169.4 kB or 83% of the original size.
Number of requests can be reduced by 62 (85%)
73
11
The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Photo S Lbl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
photos.lbl.gov
274 ms
jquery-ui-1.8.9.custom.css
64 ms
tagit-simple-grey.css
59 ms
address_book.css
59 ms
select2.css
76 ms
init.webdam.js
56 ms
config.webdam.js
87 ms
cssevents.js
55 ms
cookie.js
76 ms
imageprotect.js
65 ms
ajaxloading.js
79 ms
yahoo-min.js
50 ms
event-min.js
62 ms
dragdrop-min.js
68 ms
connection-min.js
61 ms
dom-min.js
51 ms
animation-min.js
51 ms
container-min.js
67 ms
menu-min.js
54 ms
element-beta-min.js
51 ms
button-beta-min.js
53 ms
tabview-min.js
50 ms
utilities.js
67 ms
yahoo-dom-event.js
60 ms
calendar-min.js
65 ms
jquery-1.7.2.min.js
67 ms
jquery-ui-1.8.9.custom.min.js
135 ms
purl.js
66 ms
ZeroClipboard.min.js
67 ms
jquery.jstree.js
133 ms
jquery.numeric.min.js
73 ms
tagit.min.js
66 ms
webtoprint.js
63 ms
select2.min.js
72 ms
addressBook.webdam.js
71 ms
brandportal.webdam.js
124 ms
history.js
69 ms
swfobject.js
69 ms
script.js
123 ms
social.webdam.js
69 ms
cloud.webdam.js
124 ms
lightbox.js
124 ms
common.js
123 ms
transcodedownload.js
115 ms
download.js
117 ms
ajaxEventClass.js
117 ms
jquery.animate-colors-min.js
111 ms
jquery.sonar.min.js
158 ms
jwplayer.js
158 ms
flexpaper.css
105 ms
jquery.extensions.js
110 ms
flexpaper.js
107 ms
flexpaper_handlers.js
152 ms
mediaelementplayer.css
154 ms
mediaelement-and-player.min.js
151 ms
fonts-min.css
150 ms
tabview.css
153 ms
spitfiremenu2.css
152 ms
main.css
154 ms
classic_spitfire.css
155 ms
css.php
200 ms
style.css
17 ms
style.css
16 ms
style.css
8 ms
spacer.gif
28 ms
logo-uc.gif
90 ms
help_black.png
25 ms
md_1zTy3In74z.jpg
1237 ms
loadingsm.gif
23 ms
analytics.js
71 ms
ui-bg_highlight-soft_100_eeeeee_1x100.png
36 ms
logo-uc.gif
152 ms
collect
17 ms
masthead_960_webdam.gif
16 ms
masthead_960_webdam.gif
202 ms
nr-885.min.js
42 ms
photos.lbl.gov 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.
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
Image elements do not have [alt] attributes
photos.lbl.gov 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
General
Impact
Issue
Detected JavaScript libraries
photos.lbl.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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Photos.lbl.gov 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 Photos.lbl.gov 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.
photos.lbl.gov
Open Graph description is not detected on the main page of Photo S Lbl. 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: