8.4 sec in total
391 ms
7.5 sec
516 ms
Visit phyweb.lbl.gov now to see the best up-to-date Phyweb Lbl content for United States and also check out these interesting facts you probably never knew about phyweb.lbl.gov
Website of the LBNL Theory Group
Visit phyweb.lbl.govWe analyzed Phyweb.lbl.gov page load time and found that the first response time was 391 ms and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
phyweb.lbl.gov performance score
name
value
score
weighting
Value14.3 s
0/100
10%
Value134.5 s
0/100
25%
Value44.6 s
0/100
10%
Value460 ms
61/100
30%
Value0.102
89/100
15%
Value68.5 s
0/100
10%
391 ms
421 ms
1443 ms
450 ms
570 ms
Our browser made a total of 40 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Phyweb.lbl.gov, 83% (33 requests) were made to Www-theory.lbl.gov and 10% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Www-theory.lbl.gov.
Page size can be reduced by 523.2 kB (3%)
18.1 MB
17.6 MB
In fact, the total size of Phyweb.lbl.gov main page is 18.1 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. 50% of websites need less resources to load. Images take 17.8 MB which makes up the majority of the site volume.
Potential reduce by 41.5 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 41.5 kB or 78% of the original size.
Potential reduce by 473.8 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. Phyweb Lbl images are well optimized though.
Potential reduce by 2.7 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. This website has mostly compressed JavaScripts.
Potential reduce by 5.3 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. Phyweb.lbl.gov has all CSS files already compressed.
Number of requests can be reduced by 22 (69%)
32
10
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Phyweb 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 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
phyweb.lbl.gov
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phyweb.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
phyweb.lbl.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
Page has valid source maps
phyweb.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Phyweb.lbl.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 Phyweb.lbl.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.
phyweb.lbl.gov
Open Graph data is detected on the main page of Phyweb Lbl. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: