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energy.sandia.gov screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

energy.sandia.gov

Energy - Sandia National Laboratories : Sandia Energy

Page Load Speed

3 sec in total

First Response

338 ms

Resources Loaded

2.1 sec

Page Rendered

519 ms

energy.sandia.gov screenshot

About Website

Click here to check amazing Energy Sandia content for United States. Otherwise, check out these important facts you probably never knew about energy.sandia.gov

Sandia National Laboratories is creating a secure energy future for the US through research, development, and deployment of energy sources that are safer, cleaner, more economical and efficient, and l...

Visit energy.sandia.gov

Key Findings

We analyzed Energy.sandia.gov page load time and found that the first response time was 338 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

energy.sandia.gov performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value330 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0.21

59/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

energy.sandia.gov

338 ms

gtm.js

72 ms

wp-emoji-release.min.js

76 ms

index.css

130 ms

style.min.css

272 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Energy.sandia.gov, 7% (3 requests) were made to Sandia.gov and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Energy.sandia.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 353.1 kB (5%)

Content Size

7.1 MB

After Optimization

6.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energy.sandia.gov main page is 7.1 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. 45% of websites need less resources to load. Images take 6.8 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 44.1 kB

  • Original 56.2 kB
  • After minification 52.0 kB
  • After compression 12.1 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 44.1 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 297.8 kB

  • Original 6.8 MB
  • After minification 6.5 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. Energy Sandia images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 118.9 kB
  • After minification 118.7 kB
  • After compression 117.7 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.

CSS Optimization

-10%

Potential reduce by 9.9 kB

  • Original 96.3 kB
  • After minification 95.9 kB
  • After compression 86.3 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. Energy.sandia.gov has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 25 (63%)

Requests Now

40

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energy Sandia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

energy.sandia.gov

energy.sandia.gov

338 ms

gtm.js

gtm.js

72 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

76 ms

index.css

index.css

130 ms

style.min.css

style.min.css

272 ms

public.css

public.css

165 ms

normalize.css

normalize.css

163 ms

style.css

style.css

320 ms

font-awesome.css

font-awesome.css

256 ms

dashicons.min.css

dashicons.min.css

237 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

217 ms

wp-polyfill.min.js

wp-polyfill.min.js

273 ms

conditionizr-4.3.0.min.js

conditionizr-4.3.0.min.js

291 ms

modernizr-2.7.1.min.js

modernizr-2.7.1.min.js

313 ms

jquery.min.js

jquery.min.js

427 ms

jquery-migrate.min.js

jquery-migrate.min.js

362 ms

scripts.js

scripts.js

363 ms

jquery.bxslider.js

jquery.bxslider.js

363 ms

general.js

general.js

365 ms

frontend.js

frontend.js

376 ms

swiper.min.css

swiper.min.css

366 ms

acfblocks.css

acfblocks.css

389 ms

inline-publication-scripts.js

inline-publication-scripts.js

408 ms

dlm-xhr.min.js

dlm-xhr.min.js

412 ms

new-tab.js

new-tab.js

540 ms

swiper.min.js

swiper.min.js

541 ms

image-slider.js

image-slider.js

540 ms

search_icon.png

search_icon.png

267 ms

doe_logo_white.png

doe_logo_white.png

283 ms

nnsa_logo_white.png

nnsa_logo_white.png

338 ms

snl-stacked.svg

snl-stacked.svg

80 ms

search-mag-glass.png

search-mag-glass.png

82 ms

battery-research-scaled.jpg

battery-research-scaled.jpg

456 ms

Hydrogen_storage-1-scaled.jpg

Hydrogen_storage-1-scaled.jpg

550 ms

Arctic-Albedo-photo.jpeg

Arctic-Albedo-photo.jpeg

1109 ms

Wind_blade_robot-scaled.jpg

Wind_blade_robot-scaled.jpg

608 ms

Wind_Turbines_and_Sea_Image-1.jpg

Wind_Turbines_and_Sea_Image-1.jpg

310 ms

WiT-096_smaller-scaled-1.jpg

WiT-096_smaller-scaled-1.jpg

462 ms

CFA8309lb-scaled-1.jpg

CFA8309lb-scaled-1.jpg

572 ms

siteanalyze_6025768.js

siteanalyze_6025768.js

67 ms

fa-regular-400.woff

fa-regular-400.woff

489 ms

fa-light-300.woff

fa-light-300.woff

449 ms

fa-solid-900.woff

fa-solid-900.woff

512 ms

exo-2-latin-400.woff

exo-2-latin-400.woff

531 ms

fa-brands-400.woff

fa-brands-400.woff

598 ms

image.aspx

image.aspx

20 ms

Accessibility Review

energy.sandia.gov accessibility score

90

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

High

Image elements do not have [alt] attributes

Best Practices

energy.sandia.gov best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

energy.sandia.gov SEO score

85

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

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

High

Document uses legible font sizes

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 Energy.sandia.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 Energy.sandia.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

energy.sandia.gov

Open Graph data is detected on the main page of Energy Sandia. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: