683 ms in total
94 ms
476 ms
113 ms
Visit stem.ornl.gov now to see the best up-to-date STEM Ornl content for United States and also check out these interesting facts you probably never knew about stem.ornl.gov
Visit stem.ornl.govWe analyzed Stem.ornl.gov page load time and found that the first response time was 94 ms and then it took 589 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.
stem.ornl.gov performance score
name
value
score
weighting
Value3.7 s
30/100
10%
Value13.0 s
0/100
25%
Value3.9 s
82/100
10%
Value250 ms
84/100
30%
Value0
100/100
15%
Value6.0 s
64/100
10%
94 ms
25 ms
92 ms
90 ms
383 ms
Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Stem.ornl.gov and no external sources were called. The less responsive or slowest element that took the longest time to load (383 ms) belongs to the original domain Stem.ornl.gov.
Page size can be reduced by 6.1 kB (72%)
8.5 kB
2.4 kB
In fact, the total size of Stem.ornl.gov main page is 8.5 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. HTML takes 8.5 kB which makes up the majority of the site volume.
Potential reduce by 6.1 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 1.0 kB, which is 12% 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 6.1 kB or 72% of the original size.
We found no issues to fix!
7
7
The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STEM Ornl. According to our analytics all requests are already optimized.
stem.ornl.gov
94 ms
html_style.css
25 ms
STEM_header_logo.jpg
92 ms
STEM_header_center.jpg
90 ms
STEM%20Group2012.jpg
383 ms
search2.gif
85 ms
ornl_leaf_logo.jpg
121 ms
mst_header_bkgrnd.jpg
91 ms
stem.ornl.gov accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
stem.ornl.gov best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
stem.ornl.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
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 Stem.ornl.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 Stem.ornl.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.
stem.ornl.gov
Open Graph description is not detected on the main page of STEM Ornl. 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: