4.2 sec in total
656 ms
2.9 sec
579 ms
Visit deepdive.stanford.edu now to see the best up-to-date Deep Dive Stanford content for United States and also check out these interesting facts you probably never knew about deepdive.stanford.edu
DeepDive
Visit deepdive.stanford.eduWe analyzed Deepdive.stanford.edu page load time and found that the first response time was 656 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
deepdive.stanford.edu performance score
name
value
score
weighting
Value2.0 s
85/100
10%
Value3.1 s
75/100
25%
Value2.0 s
99/100
10%
Value10 ms
100/100
30%
Value0.764
5/100
15%
Value2.9 s
96/100
10%
656 ms
421 ms
497 ms
68 ms
530 ms
Our browser made a total of 25 requests to load all elements on the main page. We found that 84% of them (21 requests) were addressed to the original Deepdive.stanford.edu, 8% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Deepdive.stanford.edu.
Page size can be reduced by 357.8 kB (16%)
2.3 MB
1.9 MB
In fact, the total size of Deepdive.stanford.edu 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 1.9 MB which makes up the majority of the site volume.
Potential reduce by 20.1 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. This page needs HTML code to be minified as it can gain 3.8 kB, which is 14% 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 20.1 kB or 73% of the original size.
Potential reduce by 96.7 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. Deep Dive Stanford images are well optimized though.
Potential reduce by 116.0 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 116.0 kB or 65% of the original size.
Potential reduce by 125.1 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. Deepdive.stanford.edu needs all CSS files to be minified and compressed as it can save up to 125.1 kB or 83% of the original size.
We found no issues to fix!
24
24
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deep Dive Stanford. According to our analytics all requests are already optimized.
deepdive.stanford.edu
656 ms
deepdive.css
421 ms
deepdive.js
497 ms
css
68 ms
forkme_right_red_aa0000.png
530 ms
header_logo.png
99 ms
deepdive.png
349 ms
dark-data.png
600 ms
memex.png
353 ms
paleo.png
608 ms
dimmwitted.png
660 ms
support.png
1823 ms
darpa.jpg
515 ms
nsf.jpg
437 ms
sloan.jpg
520 ms
onr.png
1171 ms
moore.jpg
605 ms
amfam.jpeg
681 ms
chtc.png
690 ms
google.png
692 ms
lsvp.gif
819 ms
toshiba.jpg
762 ms
fontawesome-webfont.woff
759 ms
analytics.js
5 ms
collect
14 ms
deepdive.stanford.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.
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
Links do not have a discernible name
deepdive.stanford.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
General
Impact
Issue
Detected JavaScript libraries
deepdive.stanford.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deepdive.stanford.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 Deepdive.stanford.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.
deepdive.stanford.edu
Open Graph description is not detected on the main page of Deep Dive Stanford. 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: