Tools & Wizards About Us
esfi.org screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

esfi.org

Homepage - Electrical Safety Foundation

Page Load Speed

2.9 sec in total

First Response

84 ms

Resources Loaded

2.1 sec

Page Rendered

717 ms

esfi.org screenshot

About Website

Click here to check amazing Esfi content for United States. Otherwise, check out these important facts you probably never knew about esfi.org

The Electrical Safety Foundation (ESFI) is a 501 (c)(3) organization dedicated to promoting electrical safety in the home, school, and workplace through education, awareness, and advocacy. Over the pa...

Visit esfi.org

Key Findings

We analyzed Esfi.org page load time and found that the first response time was 84 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

esfi.org performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

esfi.org

84 ms

www.esfi.org

185 ms

ESFI-logo-green-compressed.png

51 ms

Home-Safety-Yellow-cp.png

188 ms

Calibri-Regular.ttf

115 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 89% of them (81 requests) were addressed to the original Esfi.org, 11% (10 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (700 ms) belongs to the original domain Esfi.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 662.2 kB (54%)

Content Size

1.2 MB

After Optimization

558.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Esfi.org main page is 1.2 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. 55% of websites need less resources to load. HTML takes 745.6 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 661.0 kB

  • Original 745.6 kB
  • After minification 739.2 kB
  • After compression 84.6 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 661.0 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 1.2 kB

  • Original 472.2 kB
  • After minification 470.9 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. Esfi images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 7 B

  • Original 3.1 kB
  • After minification 3.1 kB
  • After compression 3.0 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

27

After Optimization

27

  • Images
  • JavaScript

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Esfi. According to our analytics all requests are already optimized.

Network Requests Diagram

esfi.org

esfi.org

84 ms

www.esfi.org

www.esfi.org

185 ms

ESFI-logo-green-compressed.png

ESFI-logo-green-compressed.png

51 ms

Home-Safety-Yellow-cp.png

Home-Safety-Yellow-cp.png

188 ms

Calibri-Regular.ttf

Calibri-Regular.ttf

115 ms

Calibri-Bold.ttf

Calibri-Bold.ttf

157 ms

Worker-Safety-Yellow-cp.png

Worker-Safety-Yellow-cp.png

158 ms

Disaster-Safety-Yellow-cp.png

Disaster-Safety-Yellow-cp.png

161 ms

Kids-Safety-Yellow-cp.png

Kids-Safety-Yellow-cp.png

159 ms

Programs-Yellow-cp.png

Programs-Yellow-cp.png

203 ms

Library-Yellow-cp.png

Library-Yellow-cp.png

234 ms

EV-compressed2.jpg

EV-compressed2.jpg

240 ms

solar-scaled-e1687360390189-compressed.jpg

solar-scaled-e1687360390189-compressed.jpg

260 ms

Switch-scaled-compressed.jpg

Switch-scaled-compressed.jpg

241 ms

Worker-scaled-compressed.jpg

Worker-scaled-compressed.jpg

225 ms

NESM-Page-Thumb-v2.png

NESM-Page-Thumb-v2.png

337 ms

Surge-Protection-Devices-Program.png

Surge-Protection-Devices-Program.png

445 ms

gfci-fault.png

gfci-fault.png

410 ms

Workplace-Safety-Qualified-Workers-Thumb.png

Workplace-Safety-Qualified-Workers-Thumb.png

273 ms

truck-driver-thumb.png

truck-driver-thumb.png

300 ms

tree-trimming-thumb.png

tree-trimming-thumb.png

445 ms

Overhead-Power-Line-Safety-Slider-2900-p8syaytcaz763zjnwokph5hirqkiutbijuqq7nwmog.png

Overhead-Power-Line-Safety-Slider-2900-p8syaytcaz763zjnwokph5hirqkiutbijuqq7nwmog.png

484 ms

KidsCorner-7EA0-p7edhzdivfkx2h3pxrugd7kk2l65kie8ei4qz21ej4.png

KidsCorner-7EA0-p7edhzdivfkx2h3pxrugd7kk2l65kie8ei4qz21ej4.png

448 ms

supportESFI-background.png

supportESFI-background.png

485 ms

lazyload.min.js

lazyload.min.js

432 ms

National-Electrical-Manufacturers-Association-2017.png

National-Electrical-Manufacturers-Association-2017.png

607 ms

WESCO_Logo_CMYK-01.png

WESCO_Logo_CMYK-01.png

467 ms

Siemens-2017.png

Siemens-2017.png

539 ms

Southwire-Company-2017.png

Southwire-Company-2017.png

467 ms

Worker-Safety-Yellow-cp.png

Worker-Safety-Yellow-cp.png

392 ms

Kids-Safety-Yellow-cp.png

Kids-Safety-Yellow-cp.png

417 ms

Home-Safety-Yellow-cp.png

Home-Safety-Yellow-cp.png

427 ms

Disaster-Safety-Yellow-cp.png

Disaster-Safety-Yellow-cp.png

446 ms

Programs-Yellow-cp.png

Programs-Yellow-cp.png

455 ms

fa-brands-400.woff

fa-brands-400.woff

429 ms

fa-solid-900.woff

fa-solid-900.woff

463 ms

fa-regular-400.woff

fa-regular-400.woff

486 ms

d

d

99 ms

d

d

173 ms

d

d

172 ms

d

d

148 ms

d

d

205 ms

d

d

207 ms

d

d

243 ms

d

d

242 ms

d

d

207 ms

d

d

244 ms

Worker-scaled-compressed.jpg

Worker-scaled-compressed.jpg

499 ms

Library-Yellow-cp.png

Library-Yellow-cp.png

503 ms

EV-compressed2.jpg

EV-compressed2.jpg

483 ms

Switch-scaled-compressed.jpg

Switch-scaled-compressed.jpg

498 ms

solar-scaled-e1687360390189-compressed.jpg

solar-scaled-e1687360390189-compressed.jpg

505 ms

Substation-scaled-compressed.jpg

Substation-scaled-compressed.jpg

435 ms

main.js

main.js

275 ms

supportESFI-background.png

supportESFI-background.png

300 ms

Worker-Safety-Yellow-cp.png

Worker-Safety-Yellow-cp.png

283 ms

Kids-Safety-Yellow-cp.png

Kids-Safety-Yellow-cp.png

298 ms

Home-Safety-Yellow-cp.png

Home-Safety-Yellow-cp.png

270 ms

Disaster-Safety-Yellow-cp.png

Disaster-Safety-Yellow-cp.png

245 ms

Programs-Yellow-cp.png

Programs-Yellow-cp.png

213 ms

EV-compressed2.jpg

EV-compressed2.jpg

141 ms

Worker-scaled-compressed.jpg

Worker-scaled-compressed.jpg

228 ms

Library-Yellow-cp.png

Library-Yellow-cp.png

202 ms

Switch-scaled-compressed.jpg

Switch-scaled-compressed.jpg

700 ms

solar-scaled-e1687360390189-compressed.jpg

solar-scaled-e1687360390189-compressed.jpg

169 ms

Substation-scaled-compressed.jpg

Substation-scaled-compressed.jpg

186 ms

supportESFI-background.png

supportESFI-background.png

190 ms

Worker-Safety-Yellow-cp.png

Worker-Safety-Yellow-cp.png

213 ms

Disaster-Safety-Yellow-cp.png

Disaster-Safety-Yellow-cp.png

233 ms

Home-Safety-Yellow-cp.png

Home-Safety-Yellow-cp.png

201 ms

EV-compressed2.jpg

EV-compressed2.jpg

185 ms

Programs-Yellow-cp.png

Programs-Yellow-cp.png

239 ms

Kids-Safety-Yellow-cp.png

Kids-Safety-Yellow-cp.png

304 ms

solar-scaled-e1687360390189-compressed.jpg

solar-scaled-e1687360390189-compressed.jpg

188 ms

Library-Yellow-cp.png

Library-Yellow-cp.png

213 ms

Worker-scaled-compressed.jpg

Worker-scaled-compressed.jpg

246 ms

Substation-scaled-compressed.jpg

Substation-scaled-compressed.jpg

253 ms

supportESFI-background.png

supportESFI-background.png

243 ms

Worker-Safety-Yellow-cp.png

Worker-Safety-Yellow-cp.png

158 ms

EV-compressed2.jpg

EV-compressed2.jpg

352 ms

Home-Safety-Yellow-cp.png

Home-Safety-Yellow-cp.png

174 ms

Disaster-Safety-Yellow-cp.png

Disaster-Safety-Yellow-cp.png

151 ms

Programs-Yellow-cp.png

Programs-Yellow-cp.png

148 ms

solar-scaled-e1687360390189-compressed.jpg

solar-scaled-e1687360390189-compressed.jpg

316 ms

Library-Yellow-cp.png

Library-Yellow-cp.png

120 ms

Kids-Safety-Yellow-cp.png

Kids-Safety-Yellow-cp.png

94 ms

Worker-scaled-compressed.jpg

Worker-scaled-compressed.jpg

272 ms

Substation-scaled-compressed.jpg

Substation-scaled-compressed.jpg

436 ms

supportESFI-background.png

supportESFI-background.png

92 ms

Switch-scaled-compressed.jpg

Switch-scaled-compressed.jpg

88 ms

Switch-scaled-compressed.jpg

Switch-scaled-compressed.jpg

290 ms

Accessibility Review

esfi.org accessibility score

91

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Links do not have a discernible name

Best Practices

esfi.org 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

esfi.org 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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Esfi.org 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 Esfi.org 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

esfi.org

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