Access lanl.gov. Los Alamos National Lab: National Security Science

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value42.1 s

0/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value38.5 s

0/100

10%

lanl.gov

475 ms

gtm.js

47 ms

global.css

677 ms

glide.core.css

163 ms

emergency.css

162 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 79% of them (49 requests) were addressed to the original Lanl.gov, 10% (6 requests) were made to Fonts.gstatic.com and 6% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Lanl.gov.

Content Size

16.2 MB

After Optimization

11.9 MB

In fact, the total size of Lanl.gov main page is 16.2 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. 65% of websites need less resources to load. Images take 10.4 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 91.1 kB

Original 102.9 kB
After minification 78.4 kB
After compression 11.8 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 24.5 kB, which is 24% 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 91.1 kB or 89% of the original size.

Image Optimization

-3%

Potential reduce by 313.2 kB

Original 10.4 MB
After minification 10.1 MB

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. Lanl images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 3.5 MB

Original 5.2 MB
After minification 5.2 MB
After compression 1.7 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 3.5 MB or 67% of the original size.

CSS Optimization

-87%

Potential reduce by 402.4 kB

Original 464.0 kB
After minification 369.5 kB
After compression 61.6 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. Lanl.gov needs all CSS files to be minified and compressed as it can save up to 402.4 kB or 87% of the original size.

Requests Now

After Optimization

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lanl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not have valid values

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

EN
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lanl.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 Lanl.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.

Social Sharing Optimization

lanl.gov

Open Graph description is not detected on the main page of Lanl. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Los Alamos National Lab: National Security Science

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

lanl.gov

gtm.js

global.css

glide.core.css

emergency.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lanl.gov

gtm.js

global.css

glide.core.css

emergency.css

LANL%20logo.svg

grlp-search-icon.svg

grlp-times-icon.svg

fontawesome.js

fontawesome-brands.js

fontawesome-solid.js

fontawesome-regular.js

fontawesome-light.js

glide.min.js

global.js

fusion-search.js

angelfish.js

css2

ool7dmr.css

p.css

grlp-navbar-hamburger.svg

grlp-navbar-close.svg

nuclear-deterrence.svg

protecting-against-nuclear-threats.svg

emerging-threats-cybersecurity.svg

energy-security-solutions.svg

mason-venado.jpg

food-drive.jpg

ai-for-astrophysics.jpg

summer-physics%20camp.jpg

flc-ntu1.jpg

ramey-nicholas.jpeg

ai-permafrost-maps1.jpg

grlp-beaker-icon.svg

business.svg

contacts.svg

maps.svg

visitors.svg

shannon-griffin.jpg

anna-llobet.jpg

babs-marrone.jpg

aaron-couture.jpg

kane-fisher.jpg